At harvest time, not all of the factory managers directly carry out the milling process and the management of the material (grain). Some managers choose to store these materials due to several factors, including: the price of raw materials is cheap, market demand is lacking, and the production scheduling process of the factory itself.

It should be remembered that the material can be stored for a long time (> 2 months) if the temperature and moisture content of the material are in the following three conditions:
Water content: 13 -15%
Air humidity : <70%
Temperature : <20°C

The following are some of the risks that can occur if the method of storing materials in silos or warehouses is not appropriate, some of these risks are as follows:
1. The appearance of mold around the material.
2. The proliferation of pests / lice that cause holes and damaged material.
3. The clumping of the material results in the destruction of the material.

Mushrooms cannot live and develop if the water content in the material is in the range of 13 - 15% with air humidity < 70%, while pests will enter the hibernation phase if the temperature in the silo / warehouse is < 13 ° Celsius. Clumping cannot occur if the three conditions above are met properly.

Then what is the right step before storing materials?
Stage 1 is to carry out a drying process, this drying process aims to reduce the water content of the material to be stored from the original moisture content of 20 - 25% down to a water content of 13 - 15%.

For the drying process itself, you can use 2 methods, namely traditional & modern drying.
The first method is traditional drying, namely by drying the material on a cement field under the hot sun, while the second method is modern drying using a special drying machine, commonly called a dryer.

After finishing drying, usually the manager will let the material rest overnight in a dryer that has been deactivated with the aim that the grain is not broken, then proceed to the next stage, namely stage 2, which is to circulate the material during storage using a grain cooler.