Guinea-Bissau, Maize, 2018

Guinea-Bissau's estimated postharvest losses for maize in 2018 was 2,150 tonnes or 18.0%.

As for nutrition 7 billion kcal were lost, which is the equivalent of more than 8 thousand people, in terms of annual nutritional dietary energy requirements. In the value chain, the majority of the loss is estimated to be happening at Harvesting/field drying, Household-level storage, and then Further drying. Highest estimated postharvest maize losses in tonnes were estimated to occur in Oio.

To view the list of studies used to estimate these losses, please see the References tab.

Production quantity and estimated postharvest losses

Production quantity (tonnes)
Estimated postharvest losses (tonnes)

2011–2021
2011	6469
2012	8196
2013	27658
2014	11946
2015	11946
2016	11946
2017	11946
2018	11946
2019	11946
2020	11946

Produced	11,946 tonnes
Estimated postharvest losses	18.0% / 2,150 tonnes

Production quantity	Estimated postharvest losses
82.0049 Production quantity: 11,946 tonnes	18.0 Estimated PHL: 2,150 tonnes

See full postharvest losses data table with estimated losses in percentage › | tonnes ›

Value chain

Production quantity and estimated postharvest losses in % per value chain step. Please note that once loss has occurred at harvesting, the percentage loss in the next stage is a percentage of what remained, not of the original amount.

Estimated % of crop left
Estimated % of crop lost

	Amount remaining(%)	Estimated postharvest loss(%)
Production	100 Remaining: 100% Est. PHL: 0%	0 Remaining: 100% Est. PHL: 0%
Harvesting/field drying	93.58 Remaining: 93.58% Est. PHL: 6.42%	6.42 Remaining: 93.58% Est. PHL: 6.42%
Further drying	89.58 Remaining: 89.58% Est. PHL: 4%	4 Remaining: 89.58% Est. PHL: 4%
Threshing and Shelling	88.26 Remaining: 88.26% Est. PHL: 1.32%	1.32 Remaining: 88.26% Est. PHL: 1.32%
Transport from field	85.90286 Remaining: 85.90286% Est. PHL: 2.35714%	2.35714 Remaining: 85.90286% Est. PHL: 2.35714%
Household-level storage	80.63911 Remaining: 80.63911% Est. PHL: 5.26375%	5.26375 Remaining: 80.63911% Est. PHL: 5.26375%
Transport to market	80.63911 Remaining: 80.63911% Est. PHL: 0%	0 Remaining: 80.63911% Est. PHL: 0%
Market storage	80.63911 Remaining: 80.63911% Est. PHL: 0%	0 Remaining: 80.63911% Est. PHL: 0%

See full value chain data table with estimated losses in percentage › | tonnes ›

Nutrition

Number of people whose annual dietary requirements (in terms of energy, kcal) could have been met by consuming the maize that was lost postharvest, and what % of the focal group of the population this number equates to.

Total number

8,938

people, 0.5%

Children 1-3

20,846

children, 11.6%

Pregnant women 19-30

women, %

Men 31-50

6,680

men, 3.6%

See full nutritional impact data for Children 1–3 › | Pregnant women 19–30 › | Men 31–50 ›