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Dried chilli yield and break-even calculator for Kenyan growers
Kenya-first insights, practical and grounded.
Published 23/10/2026 - 3 min read
A fresh chilli kilogram and a dried chilli kilogram are different products and business units. Before using a buyer's dried-price quote, measure saleable dry product from your own crop. Variety, maturity, weather, harvest handling, drying method and endpoint affect the result.
Measure fresh-to-dry conversion
Weigh a traceable fresh batch before drying. After drying and cooling, weigh the dry lot. Then weigh and record grading rejects. Use:
- Fresh-to-dry ratio = fresh kg ÷ dried kg before grading.
- Dried kg before grading = fresh kg ÷ ratio.
- Saleable dried kg = dried kg before grading × (1 − reject rate).
- Break-even net buyer price/kg = full batch cost ÷ saleable dried kg.
Worked batch calculation
Fictional example: 1,000 kg fresh divided by a 4:1 ratio gives 250 kg dry before grading. If grading rejects 10%, saleable output is 225 kg. At full batch cost KSh 60,000, break-even is KSh 266.67 per saleable kg. A hypothetical net offer of KSh 300/kg returns KSh 67,500 and leaves KSh 7,500 before excluded costs. These are arithmetic examples, not Kenyan yield or market quotes.
Change the ratio to 5:1 while holding other assumptions fixed to isolate the effect. Output becomes 200 kg dry, or 180 kg saleable after 10% rejects. Break-even rises to KSh 333.33/kg; the same KSh 300 offer gives KSh 54,000 against KSh 60,000 cost, a KSh 6,000 loss. Real drying cost may also change, so measure energy and labour in each trial instead of carrying a fixed cost blindly.
Separate moisture loss from rejects
Keep moisture removal separate from quality rejection. Water loss is expected mass change, not necessarily spoilage. Rejected material can reflect defects, foreign matter, grade, contamination or sampling. Record each reason and weight. Set final moisture only from current applicable standards and the buyer's written specification, not an unconfirmed number in a news report.
Record each trial batch
A useful trial sheet records batch ID; supplier/plot IDs; variety; fresh kg; scale/tare; harvest date; drying method/operator; start and finish times; dried kg; moisture meter ID/readings; rejects by reason; saleable kg; packing; storage; labour hours; energy and buyer feedback. Link the buyer specification version to each lot. Use calibrated scales and comparable endpoints.
For a useful sample, choose a representative lot rather than only the best-looking handful. Agree with the buyer on lot identity, sample weight, sealing, courier, test method and who receives the result. Photograph and retain a reference sample if the buyer agrees. Ask whether the result measures the same attributes that will be used for commercial acceptance. Record the method and specification date; a number from one instrument or laboratory may not compare directly with another method. If results differ, pause and agree on a retest procedure before scaling. Keep any sample or lab cost in the batch budget. This makes the trial useful for process decisions while avoiding the false assumption that one accepted sample certifies later harvests.
Reconcile supplier lots to dispatch
Aggregators also need to reconcile supplier deliveries into batches and dispatched lots. Opening stock + intake − dispatch − rejects − samples − closing stock should equal zero variance. Investigate differences instead of editing weights to force a match.
Check the export route and specification
The published China dried Capsicum rule includes handling and traceability conditions, but market access does not approve a farm, dryer or lot. Verify product form, route and specification with KEPHIS and the buyer. Read Kenya's export route to China for notice-date uncertainty and requirements to confirm.
The Kenya Chilli Business Starter Kit contains a printable mass-balance worksheet, batch record and break-even template. Measure multiple batches before choosing commercial capacity or promising volume.
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