TOOLKITS

Grain

Hermetic storage

Product Type: Grain Crops
Stage: Handing & Storage
Problem: As much as 50%~60% cereal grains can be lost during the storage stage due only to the lack of technical inefficiency.
Solution:
Use of scientific storage methods can reduce these losses to as low as 1%–2%.

1.      Hermetic storage (HS), also known called as “sealed storage” or “airtight storage”, is gaining popularity as a storage method for cereal, pulses, coffee, and cocoa beans in developing countries, due to its effectiveness and avoidance of the use of chemicals and pesticides.

 

2.      The method creates an automatic modified atmosphere of high carbon dioxide concentration using sealed waterproof bags or structures. As the structures are airtight, the biotic portion of the grains (insects and aerobic microorganisms) creates a self-inhibitory atmosphere over time by increasing carbon dioxide concentration (oxygen decreases) due to its respiration metabolism.

3.      Hermetic storage has been observed to be very effective in avoiding the losses (storage losses less than 1%) during long distance (international) shipments also. Ease of installation, elimination of pesticide use, favorable costs, and modest infrastructure requirements are some of the additional advantages that make the hermetic storage options attractive.

4.      It can be clearly observed that losses in all new storage techniques were significantly lower than those in the traditional storage, with the minimum being in the case of metallic silos.

  

 

5.      Technology interventions and improved storage structures can significantly reduce store losses. However, it is important to understand that training of smallholders is equally as necessary as the technology dissemination.