Archive for the 'Drying Advice' Category

HGCA Grain Storage Guide 3rd Edition is released

The HGCA has now released its most recent edition of their go to guide for grain storage. The Grain Storage Guide for Cereals and Oilseeds is an invaluable resource when considering grain drying and storage options.

Safe, effective grain storage is key to assuring crop quality and helping prevent loss of premiums through claims and rejections.

The economic benefits of storage are clear. The capability of storing grain for a November delivery will attract a £4/tonne premium over the harvest price, with May movement giving a further £7/tonne. Understanding the costs of storage is crucial. Grain drying is key factor in effective storage and the best practise guidance laid out in this booklet is endorsed by DEFRA, the NFU and FERA among others.

HGCA’s Grain storage guide was first published in 1999 and has become a key reference for most assurance schemes. This third edition of HGCA’s grain storage guide combines information from the previous edition and the results of a five-year Defra and industry-funded LINK research project in a new risk management approach to grain storage based on HACCP (hazrd analysis and critical control point) principles.

The guide recognises that achieving target moisture content within the shortest time possible is necessary to prevent the risk of mycotoxin formation and quality degradation. It looks are the various ways that this can be achieved. The full document can be downloaded here.

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Mecmar Grain Drier Maintenance – Dust Control

Grain drier maintenance is crucial it ensures safe and efficient drying. Failure to clean the drier during harvest will increase the likelihoodof faults, resulting in the loss of precious time.

Limiting dust around a recirculating grain drier is a difficult business. The Mecmar grain drier features many dust control measures, such as solid screens and bubble top auger and an optional aspirator. These do reduce dust emissions but around a grain drier will always create a dusty environment. Low level maintenance is essential to maximise efficiency and safety in these conditions.

With this in mind we have prepared a quick guide to some of the key areas to keep an eye on.  Continue reading ‘Mecmar Grain Drier Maintenance – Dust Control’

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Grain driers, noise and planning permission


If you have tried to build a new grain store in recent years you will know of the passion and zeal that local planning authorities jump on proposed grain store construction. The assumption appears to be, grain storage and drying capacity means increased HGV activity and increased noise nuisance, although in many situations the opposite is in fact the case.

Many new grain stores are designed to minimise HGV trips. Reduced transport costs are often a driver for investing in such facilities. Furthermore, investment in new drying equipment with electric drive and centrifugal impeller fans significantly reduce noise nuisance. Finally, if incorporated into a new grain store the noise nuisance can be confined to one site and managed through the design process and noise mitigation measures if required.  Continue reading ‘Grain driers, noise and planning permission’

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Impact of new red diesel on mobile grain driers

From 1 January 2011 diesel is changing. A new European directive will apply to the grade of gasoil that can be used in non-road mobile machinery (tractors, other agricultural equipment, forklifts and portable generators). From this date you will no longer be allowed to use gasoil with a sulphur content greater than 10ppm (parts per million). It appears that despite suggestions that grain driers will be exempt from using this new fuel there could be effects due to the fuel changeover on all mobile grain drier owners.

The new fuel will effectively be white diesel that contains a red dye but the same gasoil duty will still apply (no huge price rise). This fuel as well as having a reduced sulphur content may also contain up to 7% biodiesel. While making the new red diesel more environmentally friendly there are some potential drawbacks:  Continue reading ‘Impact of new red diesel on mobile grain driers’

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ADAS Harvest Report 2010 – a bit wetter and a bit longer than normal

The final cereals in Scotland were harvested this weekend after some terrible weather in the past three weeks. I spoke to one Mecmar owner at the end of last week who claimed to be now ”catching it dry at a little over 25% moisture”. There are very few place in the UK where a grain drier works harder than in Aberdeenshire. With harvest now at a close we can see how we have all got in the ADAS Harvest Report 2010.

It was published 30th September when the majority of harvesting was completed. In summary it concludes: Continue reading ‘ADAS Harvest Report 2010 – a bit wetter and a bit longer than normal’

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Mecmar batch grain drier productivity and performance

Nearly the entire UK area has now been harvested. The last 5% of wheat and 10% of spring barley have now, more than likely been cleared up since the most recent ADAS Harvest Report was published last Thursday. Mecmar grain driers are now hard at work around the UK with most farms getting well into the seasons drying work. At this point of the year the machine will be generally operating at its peak efficiency and maximum throughput will be achieved.

With this in mind, it seems like a good time to examine the variables that affect the productivity of a recirculating batch grain drier like the Mecmar. This post will focus on the key variables in terms of crop properties and condition that will impact the productivity of a mobile grain drier: Continue reading ‘Mecmar batch grain drier productivity and performance’

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Why now is the best time to evaluate your grain drying system

All over the UK farms are well into harvest and many, especially in the south, are entering the crucial post-harvest phase. Grain drying, cooling and storage systems are in full swing, ensuring crops are in optimum condition before delivery. Now, more than at any other point in the year, farmers are very aware of the capability of their systems. At this point we believe it is crucial to evaluate your grain drying and a storage requirement as the existing system is put through its paces.

During harvest is when shortcomings in current systems are most obvious, it is also when the best ideas for improvements are formed. Improvements to grain drying systems may be aimed at Continue reading ‘Why now is the best time to evaluate your grain drying system’

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Quickly calculating grain shrinkage

When grain is accepted by merchants at a moisture content level which is higher than that contracted, the weight loss due to drying must be calculated. This enables the actual value of the grain to be worked out. This charge and also the charge applied for then drying the grain can be avoided through having suitable facilities for on-farm grain drying.

The loss in weight during drying is known as water shrinkage and occurs when grain is dried, whether in the field or mechanically. The weight of dried grain may be calculated, by using Continue reading ‘Quickly calculating grain shrinkage’

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The harvest rush on second hand mobile batch grain driers

Harvest 2010 is looking a bit gloomy at the moment, the weather forecast continues to look unpromising and 75% of UK wheat is still standing in the fields. However, the prospect that wheat prices may remain bullish in the short term is a welcome distraction (especially if Ukraine impose export quotas this week). Unfavourable weather conditions do not only cause panic buying on the international wheat market but they also cause panic buying on the (slightly smaller but no less important) UK second hand grain drier market.

Buying second hand grain driers

This combination of dreary weather forecasts and crops standing in the field drive hurried enquiries for second hand grain driers, the sole criteria being Continue reading ‘The harvest rush on second hand mobile batch grain driers’

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Mobile batch grain driers and grain moisture testing

This time of year we are always occupied with helping new customers to get the best from their Mecmar grain driers and usually reminding a few older ones what they should be doing too. A great many questions centre around the issue of drying temperatures. Setting the air temperature is a straightforward business but the process by which you relate the cereal temperature to the moisture content (mc) of a crop can be trickier.

One of the main pitfalls is the accurate measurement of crop moisture straight from the drier. HGCA research shows that moisture content variability is increased when measuring freshly harvested grain, even within well mixed samples. The research went on to find that poor operator practise could result in errors of Continue reading ‘Mobile batch grain driers and grain moisture testing’

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