Grain Storage

With conditions not always ideal for grain harvest, care with storage to prevent grain deterioration will be particularly important.

How can BPI Help you....

Cleaning stores out thoroughly will give them a good break from last year’s crop.

Storage pests, insects and mites, do not come in with the new crop but live on residues in store. In the UK the most important grain beetle pests rarely fly and do not infest grain in the field; they are mostly spread between stores on loads of grain, animal feed, contaminated lorries or equipment.

All of our equipment is regularly inspected and maintained to ensure everything is sealed and any risk of contamination is prevented

Ideally crops are cool and dry before they enter the store but the weather does not always play fair.

The ideal moisture content for stored grain is 14.5% or less, with any grain coming in at over 18% needing priority for drying. Both high moisture content and a high temperature in combination puts the grain at a great risk of fungal development and of mycotoxin formation. Using high temperature drying does need care to make sure the grain is cooled adequately

Near ambient air drying will be very slow if harvested grain has a high moisture content of above 20%. Reducing the depth of the stored grain will help with this if feasible.

Grain should be cooled as soon as possible after harvest to below 15oC. 

Monitoring of the store is then on-going.

Ideally weekly for grain temperature once the grain is at the target storage temperature, weekly with pitfall traps for grain mites and insects, and at least once a month for moisture. Pitfall traps should be positioned on top of the grain and just under the surface at 4-5 metres apart. Ideally blow air up through the grain to cool it and using a differential thermostat is a good idea which will only blow ambient air when it is cooler than the grain, preventing any dampness being added into the stored grain.