Are You Ready For New Crop?
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Digital Re-print - July | August 2009 Feature: New Crop Feature title: Are you ready for the new crop? Grain & Feed Milling Technology is published six times a year by Perendale Publishers Ltd of the United Kingdom. All data is published in good faith, based on information received, and while every care is taken to prevent inaccuracies, the publishers accept no liability for any errors or omissions or for the consequences of action taken on the basis of information published. ©Copyright 2009 Perendale Publishers Ltd. All rights reserved. No part of this publication may be reproduced in any form or by any means without prior permission of the copyright owner. Printed by Perendale Publishers Ltd. ISSN: 1466-3872
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Feature
Are you ready for new crop? by Jonathan Bradshaw
If you do not want to be woken in the middle of the night by a miller unable to control his temper through frustration at having spent all the night shift clearing chokes and leaving you with the problem of having to explain to customers why they will not be receiving their promised delivery in the morning then perhaps this article may be of some interest.
A
s we approach and enter the European harvest season there is a great deal to be done back at the mill in readiness for a smooth transition from old crop to new crop. We all have experience of dramatic changes in wheat quality at harvest time. We know that wheat is a living organism, a plant; and I firmly believe that wheat takes six weeks to die after being harvested. During that six week period however it can cause no end of problems in the mill if you, as a miller, are not ready and prepared for its introduction, gradual or sudden, onto your first break rolls. In readiness for the harvest changeover we all have our check lists of things to do and we all have our preferred methods of changing over from old crop to new crop. There are routine jobs to be done in the silos that can best be done at this time of year when those mills with large silo storage capacity find their wheat stocks at the lowest point in the year and then can gain access to silos for inspection, cleaning and maintenance. 16 | July-august 2009
Several millers use the summer bank holidays as time to carry out pest control activities, fumigation and spraying, although fumigation is gradually dwindling in popularity as the list of safe fumigants also shortens. Some jobs, done more traditionally at the Christmas break period really should be done in the summer, immediately pre harvest; filter sleeve cleaning and replacement being one of them. With new crop wheat being unpredictable in terms of how it will handle on the mill and mill balance being so easily upset, the balance of the pneumatic system will also be affected and it is really desirable to have the pneumatic system in good order so as to respond well to changes in mill conditions over the changeover period.
The wheat cleaning plant Time also to look through the wheat cleaning plant, replace ball cleaners in milling separators and make sure screens and drag cloths are in good order. Checking over the screenroom filters should also be on your list, as should calibrating or rather, checking the calibration, of the moisture addition system.
Destoner screens, fans and filters all need a good coat of looking at and it never goes amiss to check discs and cylinders over to make sure they are operating efficiently and not too badly worn. I would add at this point that I find millers looking more towards the use of colour sorters at this point in the screenroom where tradition has hitherto dictated the use of cylinders and occasionally disc separators. There is a much greater flexibility in the use of colour sorters and whilst lamps and chutes wear, they do not cost as much to replace as discs.
In the mill Moving into the mill proper it goes without saying that sifters should all be checked on the run up to harvest, making sure sieve tension is correct and sieve and tray cleaners are all in good order. Many of the milling engineers, Buhler and Satake especially, offer the services of their experienced staff to strip, check and repair sifter sections and I, personally, have found this service one which is well worth availing yourself of.
&feed millinG technoloGy
Grain
Feature
New Crop
It is OK using you own staff to check over sifters when the mill is down for a spell, but they don’t do it as thoroughly and professionally as the engineers’ staff and, perhaps more to the point these days they do not do it as quickly or with the experience of looking at sieves and sifters every day of every week. Having made sure our pneumatics are in good working order, checked the screenroom machinery over and gone through all our sifters, the next stop is the roller floor, not forgetting to check purifiers over as we pass them on the way down from the sifter floor. The proper maintenance of rollermills cannot be stressed sufficiently and yet I find it surprising just how many mills neglect to deal with minor issues such as oil leaks and misalignment of simple adjusters. Again this is an area where it pays to have some expert, efficient help just before harvest. With wheat varying as much as it does in terms of texture, free moisture, hardness etc, there is never a time in the year when the miller or mill operative will need as much adjustment on his rollermills as is the case at harvest and through the transition period from old to new crop. It therefore pays to have machines in good order with the full range of adjustments working and available.
The roller chills The other obvious, yet neglected area on the rollermill is the state of the roll chills themselves. I firmly believe that first and second break rolls should be renewed before new crop wheat is introduced. The cost of fluting rolls pales into insignificance in comparison to the costs involved with poor fluting. Power costs and down time due to poor mill balance will far outweigh the cost of refluting. Some millers, that perhaps go a bit overboard, not only change their rolls chills for newly fluted rolls but they also change the disposition to present
&feed millinG technoloGy
Grain
© Miflippo | Dreamstime.com
New Crop
sharper surfaces to the grain over the harvest period. The logic of this is to acquire cleaner semolina stocks when wheat is at its most “unco-operative” state and I must admit that it does help, but it can be time consuming and not many mills these days can afford the down time to stop and change rolls so often. Use of engineers’ staff to do rollermill maintenance work has long been heralded as the most cost effective way to address such issues and if you can call in half a dozen skilled maintenance people, familiar with your equipment, just when you want them, then you really should avail yourself of the service! Good roll fluting is a real asset in the changeover and whilst sharp fluting will minimise power costs at any time of the year, it will especially be the case at harvest. A look down the reduction rolls will also be of value. Many millers do not change smooth rolls often enough and they too can be a cause of excess power
“Knowing your supplier and working with them is becoming a key element of a successful mill operation”
1_8pagina G&F Magazine.indd 1
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consumption and it is often not easily seen when rollermills are set up with fixed and overflow sides and it is not always apparent what quantity of stock is running through each side.
www.pavan.com
15/07/2009 11.08.00
July-august 2009 | 17
New Crop
Feature
Feature
New Crop
much their problem as ours. We may have difficulty in milling new crop wheat fresh from the field, but if you think that is difficult, then try baking with newly milled flour from new crop wheat and you will find it, on many occasions, to be frustrating to say the least. Most bakers have a number of suppliers and they try to get all their suppliers doing much the same thing as far as harvest changeover is concerned, just so they have flour on their plant that comes from more or less the same proportions of old and new crop. It wouldn’t help their plight if one miller’s flour comes from 100 percent old crop when another miller’s flour which may follow immediately after that batch, often in the middle of the night shift, comes from 100 percent new crop wheat. The variances and the adjustments needed would not be very practical and so most bakers will discuss the matter and agree a schedule for changeover with each of their supplying millers.
Walking around the mill I often allude to the benefits of mill managers walking round their mills daily and it is precisely this type of thing he or she is looking for as they go around, imbalanced feed rates through rolls will not only cost money by higher power consumption but will also affect grinding and will put stock back on the rolls further down the mill, leading to poorer quality flour being produced. Most mill engineers, in fact all reputable ones, will give you a report on any roll chills you submit for refurbishing, before any work is carried out. When they say there is damage to a
gudgeon then it will pay you to examine the cause of that damage before it affects subsequent replacement chills. Again a good reason for having some experienced crews in now and then to check such things out. The reports you get from engineers’ inspections of roll chills can tell you a good deal about your mill and often about your millers. Operatives who set rolls too close on one side or leave rolls in gear with no stock passing between them, those who burn reduction rolls by grinding them together, etc etc, all of these faults are apparent when the chills are inspected and it pays to look at these reports in some detail and discuss matters with your operatives. We can all learn, no matter how long we have been in the industry.
“We may have difficulty in milling new crop wheat fresh from the field, but if you think that is difficult, then try baking with newly milled flour from new crop wheat and you will find it, on many occasions, to be frustrating to say the least” 18 | July-august 2009
Feed rolls Another
aspect
of rollermill maintenance is the feed mechanism and the feed rolls. Check these over for damage to the rolls and the feed screws if they are used. Make sure the feed gates are all properly aligned and where feed rate is controlled by variable speed feed rolls make sure they feed
accurately and do not throw feed to one side of the rolls preferentially as feed rates are increased. Most new rollermills have the facility for either removing the feed rolls or a substantial part of the feed gate, sufficient at least, to clean behind the rolls and remove any accumulation of stock and debris that should not be there and which can cause incorrect and uneven feed through the grinding rolls. And when the time comes for wheat to be introduced on to the mill then we all have our own preferences as to how it should be done and at what rate. There are those who start at 10 percent new crop inclusion and gradually increase it week on week and there are those who start at 50 percent and the go straight to 100 percent after a week or so. Much depends on your mill, the length of dressing surface, whether you have the silo capacity to accommodate a long changeover, whether you have the financial ability to weather a protracted changeover period, especially when new crop wheat may be substantially cheaper than old crop.
Working with farmers and merchant suppliers As I mention discussions with industry partners let me stress the importance of
knowing, and working with, your farmer or merchant supplier. The farmer who dries his grain too quickly is no good to anyone, including himself, and similarly it would seem that the farmer who leaves his grain in the field too long, hoping the sun will dry it for him, and risks increased mycotoxin activity is also heading for a fall. Knowing your supplier and working with them is becoming a key element of a successful mill operation and we are beginning to see the embryo of structural change in regard to grain handling, drying, storage and marketing in several areas of the country. Perhaps more on that subject at a later date. And when everything goes right, the miller checks and maintains his mill in advance of harvest, the farmer services his combine and fires up his dryer in advance of the first cut, the baker and the miller get together and agree their campaign strategy and everything goes like clockwork without a choke in sight. If this were always the case then you wouldn’t be reading this article looking for advice, you would be out there in the mill making sure all was ready for the upcoming arrival of new crop wheat.
But to recap on key elements that should be on a pre harvest check list - check screens, filter sleeves, sieve and screen cleaners, sieve tension and application. Always have a few spare flour covers on hand for making changeovers if needs be when new crop is found to be a little coarser than old. Check your rollermills out thoroughly, using bought in engineers’ and millwrights’ skills for best results and make sure your fluting is up to date and in good order well before the introduction of the first stage or phase of new crop wheat. And again, I emphasise the importance of a daily walk round by a mill manager with an eye for detail. What you observe on your daily tours could well save you a midnight phone call!
Other related companies: Buhler Sortex Ltd 20 Atlantis Avenue, London, E16 2BF United Kingdom Tel: +44 199 2537421/ Fax: +44 20 7055 7700 Email: [email protected] Website: www.buhlersortex.com
Quality and decision-making Quality of wheat will play its part in your decision-making and there is nearly always some feature to adapt to as each new crop appears, whether it be the Mycotoxin issues we are all currently getting to grips with or whether it be the ladybird plagues of the 1970s. But perhaps most important is what our customers have to say, for it is just as
&feed millinG technoloGy
Grain
&feed millinG technoloGy
Grain
PREVIOUS PAGE
NEXT PAGE
July-august 2009 | 19
LINKS
This digital Re-print is part of the July | August 2009 edition of Grain & Feed Milling Technology magazine. Content from the magazine is available to view free-of-charge, both as a full online magazine on our website, and as an archive of individual features on the docstoc website. Please click here to view our other publications on www.docstoc.com.
August
• See the full issue
2009
• Growing concerns over mycotoxins
In this issue: • Enzymes in breadmaking: Economic relevance, markets, and future perspectives • Preserving
feed materials after harvest a multifaceted approach to mycotoxins
•
Vacuum plays an important role in delivering micro-ingredients to livestock
•
Are you ready for new crop?
•
FOCUS:Europe
•
Flour
a delivery system for vitamins and minerals receives WHO endorsement
•
Visit the GFMT website
•
Contact the GFMT Team
•
Subscribe to GFMT
A subscription magazine for the global flour & feed milling industries - first published in 1891 29/07/2009 15:48
© Miflippo | Dreamstime.com
GFMT0904.indd 1
To purchase a paper copy of the magazine, or to subscribe to the paper edition please contact our Circulation and Subscriptions Manager on the link adove.
sharper surfaces to the grain over the harvest period. The logic of this is to acquire cleaner semolina stocks when wheat is at its most “unco-operative” state and I must admit that it does help, but it can be time consuming and not many mills these days can afford the down time to stop and change rolls so often. Use of engineers’ staff to do rollermill maintenance work has long been heralded as the most cost effective way to address such issues and if you can call in half a dozen skilled maintenance people, familiar with your equipment, just when you want them, then you really should avail yourself of the service! Good roll fluting is a real asset in the changeover and whilst sharp fluting will minimise power costs at any time of the year, it will especially be the case at harvest. A look down the reduction rolls will also be of value. Many millers do not change smooth rolls often enough and they too can be a cause of excess power
“Knowing your supplier and working with them is becoming a key element of a successful mill operation” ADVERTISERS LINKS
Feature
New Crop
much their problem as ours. We may have difficulty in milling new crop wheat fresh from the field, but if you think that is difficult, then try baking with newly milled flour from new crop wheat and you will find it, on many occasions, to be frustrating to say the least. Most bakers have a number of suppliers and they try to get all their suppliers doing much the same thing as far as harvest changeover is concerned, just so they have flour on their plant that comes from more or less the same proportions of old and new crop. It wouldn’t help their plight if one miller’s flour comes from 100 percent old crop when another miller’s flour which may follow immediately after that batch, often in the middle of the night shift, comes from 100 percent new crop wheat. The variances and the adjustments needed would not be very practical and so most bakers will discuss the matter and agree a schedule for changeover with each of their supplying millers.
consumption and it is often not easily seen when rollermills are set up with fixed and overflow sides and it is not always apparent what quantity of stock is running through each side.
Working with farmers and merchant suppliers As I mention discussions with industry partners let me stress the importance of
But to recap on key elements that should be on a pre harvest check list - check screens, filter sleeves, sieve and screen cleaners, sieve tension and application. Always have a few spare flour covers on hand for making changeovers if needs be when new crop is found to be a little coarser than old. Check your rollermills out thoroughly, using bought in engineers’ and millwrights’ skills for best results and make sure your fluting is up to date and in good order well before the introduction of the first stage or phase of new crop wheat. And again, I emphasise the importance of a daily walk round by a mill manager with an eye for detail. What you observe on your daily tours could well save you a midnight phone call!
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Other related companies: Buhler Sortex Ltd 20 Atlantis Avenue, London, E16 2BF United Kingdom Tel: +44 199 2537421/ Fax: +44 20 7055 7700 Email: [email protected] Website: www.buhlersortex.com
•
Visit Pavan online
•
Visit Silos Cordoba online
•
Email Pavan
•
Email Silos Cordoba
www.pavan.com &feed millinG technoloGy
Grain
1_8pagina G&F Magazine.indd 1
knowing, and working with, your farmer or merchant supplier. The farmer who dries his grain too quickly is no good to anyone, including himself, and similarly it would seem that the farmer who leaves his grain in the field too long, hoping the sun will dry it for him, and risks increased mycotoxin activity is also heading for a fall. Knowing your supplier and working with them is becoming a key element of a successful mill operation and we are beginning to see the embryo of structural change in regard to grain handling, drying, storage and marketing in several areas of the country. Perhaps more on that subject at a later date. And when everything goes right, the miller checks and maintains his mill in advance of harvest, the farmer services his combine and fires up his dryer in advance of the first cut, the baker and the miller get together and agree their campaign strategy and everything goes like clockwork without a choke in sight. If this were always the case then you wouldn’t be reading this article looking for advice, you would be out there in the mill making sure all was ready for the upcoming arrival of new crop wheat.
15/07/2009 11.08.00
July-august 2009 | 17
29/07/2009 15:49
GFMT0904.indd 19
July-august 2009 | 19
29/07/2009 15:50
www.gfmt.co.uk
PREVIOUS PAGE
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Feature
Are you ready for new crop? by Jonathan Bradshaw
If you do not want to be woken in the middle of the night by a miller unable to control his temper through frustration at having spent all the night shift clearing chokes and leaving you with the problem of having to explain to customers why they will not be receiving their promised delivery in the morning then perhaps this article may be of some interest.
A
s we approach and enter the European harvest season there is a great deal to be done back at the mill in readiness for a smooth transition from old crop to new crop. We all have experience of dramatic changes in wheat quality at harvest time. We know that wheat is a living organism, a plant; and I firmly believe that wheat takes six weeks to die after being harvested. During that six week period however it can cause no end of problems in the mill if you, as a miller, are not ready and prepared for its introduction, gradual or sudden, onto your first break rolls. In readiness for the harvest changeover we all have our check lists of things to do and we all have our preferred methods of changing over from old crop to new crop. There are routine jobs to be done in the silos that can best be done at this time of year when those mills with large silo storage capacity find their wheat stocks at the lowest point in the year and then can gain access to silos for inspection, cleaning and maintenance. 16 | July-august 2009
Several millers use the summer bank holidays as time to carry out pest control activities, fumigation and spraying, although fumigation is gradually dwindling in popularity as the list of safe fumigants also shortens. Some jobs, done more traditionally at the Christmas break period really should be done in the summer, immediately pre harvest; filter sleeve cleaning and replacement being one of them. With new crop wheat being unpredictable in terms of how it will handle on the mill and mill balance being so easily upset, the balance of the pneumatic system will also be affected and it is really desirable to have the pneumatic system in good order so as to respond well to changes in mill conditions over the changeover period.
The wheat cleaning plant Time also to look through the wheat cleaning plant, replace ball cleaners in milling separators and make sure screens and drag cloths are in good order. Checking over the screenroom filters should also be on your list, as should calibrating or rather, checking the calibration, of the moisture addition system.
Destoner screens, fans and filters all need a good coat of looking at and it never goes amiss to check discs and cylinders over to make sure they are operating efficiently and not too badly worn. I would add at this point that I find millers looking more towards the use of colour sorters at this point in the screenroom where tradition has hitherto dictated the use of cylinders and occasionally disc separators. There is a much greater flexibility in the use of colour sorters and whilst lamps and chutes wear, they do not cost as much to replace as discs.
In the mill Moving into the mill proper it goes without saying that sifters should all be checked on the run up to harvest, making sure sieve tension is correct and sieve and tray cleaners are all in good order. Many of the milling engineers, Buhler and Satake especially, offer the services of their experienced staff to strip, check and repair sifter sections and I, personally, have found this service one which is well worth availing yourself of.
&feed millinG technoloGy
Grain
Feature
New Crop
It is OK using you own staff to check over sifters when the mill is down for a spell, but they don’t do it as thoroughly and professionally as the engineers’ staff and, perhaps more to the point these days they do not do it as quickly or with the experience of looking at sieves and sifters every day of every week. Having made sure our pneumatics are in good working order, checked the screenroom machinery over and gone through all our sifters, the next stop is the roller floor, not forgetting to check purifiers over as we pass them on the way down from the sifter floor. The proper maintenance of rollermills cannot be stressed sufficiently and yet I find it surprising just how many mills neglect to deal with minor issues such as oil leaks and misalignment of simple adjusters. Again this is an area where it pays to have some expert, efficient help just before harvest. With wheat varying as much as it does in terms of texture, free moisture, hardness etc, there is never a time in the year when the miller or mill operative will need as much adjustment on his rollermills as is the case at harvest and through the transition period from old to new crop. It therefore pays to have machines in good order with the full range of adjustments working and available.
The roller chills The other obvious, yet neglected area on the rollermill is the state of the roll chills themselves. I firmly believe that first and second break rolls should be renewed before new crop wheat is introduced. The cost of fluting rolls pales into insignificance in comparison to the costs involved with poor fluting. Power costs and down time due to poor mill balance will far outweigh the cost of refluting. Some millers, that perhaps go a bit overboard, not only change their rolls chills for newly fluted rolls but they also change the disposition to present
&feed millinG technoloGy
Grain
© Miflippo | Dreamstime.com
New Crop
sharper surfaces to the grain over the harvest period. The logic of this is to acquire cleaner semolina stocks when wheat is at its most “unco-operative” state and I must admit that it does help, but it can be time consuming and not many mills these days can afford the down time to stop and change rolls so often. Use of engineers’ staff to do rollermill maintenance work has long been heralded as the most cost effective way to address such issues and if you can call in half a dozen skilled maintenance people, familiar with your equipment, just when you want them, then you really should avail yourself of the service! Good roll fluting is a real asset in the changeover and whilst sharp fluting will minimise power costs at any time of the year, it will especially be the case at harvest. A look down the reduction rolls will also be of value. Many millers do not change smooth rolls often enough and they too can be a cause of excess power
“Knowing your supplier and working with them is becoming a key element of a successful mill operation”
1_8pagina G&F Magazine.indd 1
PREVIOUS PAGE
NEXT PAGE
consumption and it is often not easily seen when rollermills are set up with fixed and overflow sides and it is not always apparent what quantity of stock is running through each side.
www.pavan.com
15/07/2009 11.08.00
July-august 2009 | 17
New Crop
Feature
Feature
New Crop
much their problem as ours. We may have difficulty in milling new crop wheat fresh from the field, but if you think that is difficult, then try baking with newly milled flour from new crop wheat and you will find it, on many occasions, to be frustrating to say the least. Most bakers have a number of suppliers and they try to get all their suppliers doing much the same thing as far as harvest changeover is concerned, just so they have flour on their plant that comes from more or less the same proportions of old and new crop. It wouldn’t help their plight if one miller’s flour comes from 100 percent old crop when another miller’s flour which may follow immediately after that batch, often in the middle of the night shift, comes from 100 percent new crop wheat. The variances and the adjustments needed would not be very practical and so most bakers will discuss the matter and agree a schedule for changeover with each of their supplying millers.
Walking around the mill I often allude to the benefits of mill managers walking round their mills daily and it is precisely this type of thing he or she is looking for as they go around, imbalanced feed rates through rolls will not only cost money by higher power consumption but will also affect grinding and will put stock back on the rolls further down the mill, leading to poorer quality flour being produced. Most mill engineers, in fact all reputable ones, will give you a report on any roll chills you submit for refurbishing, before any work is carried out. When they say there is damage to a
gudgeon then it will pay you to examine the cause of that damage before it affects subsequent replacement chills. Again a good reason for having some experienced crews in now and then to check such things out. The reports you get from engineers’ inspections of roll chills can tell you a good deal about your mill and often about your millers. Operatives who set rolls too close on one side or leave rolls in gear with no stock passing between them, those who burn reduction rolls by grinding them together, etc etc, all of these faults are apparent when the chills are inspected and it pays to look at these reports in some detail and discuss matters with your operatives. We can all learn, no matter how long we have been in the industry.
“We may have difficulty in milling new crop wheat fresh from the field, but if you think that is difficult, then try baking with newly milled flour from new crop wheat and you will find it, on many occasions, to be frustrating to say the least” 18 | July-august 2009
Feed rolls Another
aspect
of rollermill maintenance is the feed mechanism and the feed rolls. Check these over for damage to the rolls and the feed screws if they are used. Make sure the feed gates are all properly aligned and where feed rate is controlled by variable speed feed rolls make sure they feed
accurately and do not throw feed to one side of the rolls preferentially as feed rates are increased. Most new rollermills have the facility for either removing the feed rolls or a substantial part of the feed gate, sufficient at least, to clean behind the rolls and remove any accumulation of stock and debris that should not be there and which can cause incorrect and uneven feed through the grinding rolls. And when the time comes for wheat to be introduced on to the mill then we all have our own preferences as to how it should be done and at what rate. There are those who start at 10 percent new crop inclusion and gradually increase it week on week and there are those who start at 50 percent and the go straight to 100 percent after a week or so. Much depends on your mill, the length of dressing surface, whether you have the silo capacity to accommodate a long changeover, whether you have the financial ability to weather a protracted changeover period, especially when new crop wheat may be substantially cheaper than old crop.
Working with farmers and merchant suppliers As I mention discussions with industry partners let me stress the importance of
knowing, and working with, your farmer or merchant supplier. The farmer who dries his grain too quickly is no good to anyone, including himself, and similarly it would seem that the farmer who leaves his grain in the field too long, hoping the sun will dry it for him, and risks increased mycotoxin activity is also heading for a fall. Knowing your supplier and working with them is becoming a key element of a successful mill operation and we are beginning to see the embryo of structural change in regard to grain handling, drying, storage and marketing in several areas of the country. Perhaps more on that subject at a later date. And when everything goes right, the miller checks and maintains his mill in advance of harvest, the farmer services his combine and fires up his dryer in advance of the first cut, the baker and the miller get together and agree their campaign strategy and everything goes like clockwork without a choke in sight. If this were always the case then you wouldn’t be reading this article looking for advice, you would be out there in the mill making sure all was ready for the upcoming arrival of new crop wheat.
But to recap on key elements that should be on a pre harvest check list - check screens, filter sleeves, sieve and screen cleaners, sieve tension and application. Always have a few spare flour covers on hand for making changeovers if needs be when new crop is found to be a little coarser than old. Check your rollermills out thoroughly, using bought in engineers’ and millwrights’ skills for best results and make sure your fluting is up to date and in good order well before the introduction of the first stage or phase of new crop wheat. And again, I emphasise the importance of a daily walk round by a mill manager with an eye for detail. What you observe on your daily tours could well save you a midnight phone call!
Other related companies: Buhler Sortex Ltd 20 Atlantis Avenue, London, E16 2BF United Kingdom Tel: +44 199 2537421/ Fax: +44 20 7055 7700 Email: [email protected] Website: www.buhlersortex.com
Quality and decision-making Quality of wheat will play its part in your decision-making and there is nearly always some feature to adapt to as each new crop appears, whether it be the Mycotoxin issues we are all currently getting to grips with or whether it be the ladybird plagues of the 1970s. But perhaps most important is what our customers have to say, for it is just as
&feed millinG technoloGy
Grain
&feed millinG technoloGy
Grain
PREVIOUS PAGE
NEXT PAGE
July-august 2009 | 19
LINKS
This digital Re-print is part of the July | August 2009 edition of Grain & Feed Milling Technology magazine. Content from the magazine is available to view free-of-charge, both as a full online magazine on our website, and as an archive of individual features on the docstoc website. Please click here to view our other publications on www.docstoc.com.
August
• See the full issue
2009
• Growing concerns over mycotoxins
In this issue: • Enzymes in breadmaking: Economic relevance, markets, and future perspectives • Preserving
feed materials after harvest a multifaceted approach to mycotoxins
•
Vacuum plays an important role in delivering micro-ingredients to livestock
•
Are you ready for new crop?
•
FOCUS:Europe
•
Flour
a delivery system for vitamins and minerals receives WHO endorsement
•
Visit the GFMT website
•
Contact the GFMT Team
•
Subscribe to GFMT
A subscription magazine for the global flour & feed milling industries - first published in 1891 29/07/2009 15:48
© Miflippo | Dreamstime.com
GFMT0904.indd 1
To purchase a paper copy of the magazine, or to subscribe to the paper edition please contact our Circulation and Subscriptions Manager on the link adove.
sharper surfaces to the grain over the harvest period. The logic of this is to acquire cleaner semolina stocks when wheat is at its most “unco-operative” state and I must admit that it does help, but it can be time consuming and not many mills these days can afford the down time to stop and change rolls so often. Use of engineers’ staff to do rollermill maintenance work has long been heralded as the most cost effective way to address such issues and if you can call in half a dozen skilled maintenance people, familiar with your equipment, just when you want them, then you really should avail yourself of the service! Good roll fluting is a real asset in the changeover and whilst sharp fluting will minimise power costs at any time of the year, it will especially be the case at harvest. A look down the reduction rolls will also be of value. Many millers do not change smooth rolls often enough and they too can be a cause of excess power
“Knowing your supplier and working with them is becoming a key element of a successful mill operation” ADVERTISERS LINKS
Feature
New Crop
much their problem as ours. We may have difficulty in milling new crop wheat fresh from the field, but if you think that is difficult, then try baking with newly milled flour from new crop wheat and you will find it, on many occasions, to be frustrating to say the least. Most bakers have a number of suppliers and they try to get all their suppliers doing much the same thing as far as harvest changeover is concerned, just so they have flour on their plant that comes from more or less the same proportions of old and new crop. It wouldn’t help their plight if one miller’s flour comes from 100 percent old crop when another miller’s flour which may follow immediately after that batch, often in the middle of the night shift, comes from 100 percent new crop wheat. The variances and the adjustments needed would not be very practical and so most bakers will discuss the matter and agree a schedule for changeover with each of their supplying millers.
consumption and it is often not easily seen when rollermills are set up with fixed and overflow sides and it is not always apparent what quantity of stock is running through each side.
Working with farmers and merchant suppliers As I mention discussions with industry partners let me stress the importance of
But to recap on key elements that should be on a pre harvest check list - check screens, filter sleeves, sieve and screen cleaners, sieve tension and application. Always have a few spare flour covers on hand for making changeovers if needs be when new crop is found to be a little coarser than old. Check your rollermills out thoroughly, using bought in engineers’ and millwrights’ skills for best results and make sure your fluting is up to date and in good order well before the introduction of the first stage or phase of new crop wheat. And again, I emphasise the importance of a daily walk round by a mill manager with an eye for detail. What you observe on your daily tours could well save you a midnight phone call!
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knowing, and working with, your farmer or merchant supplier. The farmer who dries his grain too quickly is no good to anyone, including himself, and similarly it would seem that the farmer who leaves his grain in the field too long, hoping the sun will dry it for him, and risks increased mycotoxin activity is also heading for a fall. Knowing your supplier and working with them is becoming a key element of a successful mill operation and we are beginning to see the embryo of structural change in regard to grain handling, drying, storage and marketing in several areas of the country. Perhaps more on that subject at a later date. And when everything goes right, the miller checks and maintains his mill in advance of harvest, the farmer services his combine and fires up his dryer in advance of the first cut, the baker and the miller get together and agree their campaign strategy and everything goes like clockwork without a choke in sight. If this were always the case then you wouldn’t be reading this article looking for advice, you would be out there in the mill making sure all was ready for the upcoming arrival of new crop wheat.
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