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Store category Store type Typical ranges 
Storage period** Store capacity (tonnes)

                                         Store life span (years)                               

17 store lifespanICON

Costs US$
Initial outlay on storage capacity tonne/ year of store life
200kg 1 tonne
Hermetic Metal drums 3 - 24 months 90 - 180kg 15 - 20 58 - 66 291 - 333 17 - 19
Plastic drum/silo 50kg - 4t 10 - 20 90 400 - 444 27 - 30
Grain bags 50 - 120kg 1 - 3 8 - 14 42 -70 20 - 35
Cocoons 1 - 300t 10 - 15 ** 152 - 350 12 - 28
Sealable Metal silos 3 - 24 months 90kg - 3t 15 - 20 110 197 - 550 11 - 31
Metal tanks 3 - 12 months 200kg – 2t 15 - 20 100 178 - 500 10 - 29^
Open weave Polypropylene sacks 0 - 6 months 50/100kg 1 - 2 1.5 - 1.6 7 - 8 5 - 6^
Jute sack 90-100kg 2 - 3 8 - 9 40 - 44  20 - 22^
Insecticide treated polypropylene sack 3 - 12 months 50/100kg 1 - 2 12 -16 60 - 80 40 - 53^
Improved traditional Zimbabwe granary 0 - 6 months
3t 15 - 20 * 133 - 233 9 - 16^
Tanzanian kihenge 1 - 5t 5 - 10 * 28 - 31 4 - 5^
Gorongosa mud silos 0.5 - 1.6t 5 - 10 * 88 - 140 12 - 19^

* Not suitable for only 200kg

** Storage periods for well dried cereals and pulses (≤ 14% moisture content)

^ Not including pest control costs for storage periods exceeding 3 months