Blackberries yield: how much is usable after prep (AP to EP %)
Blackberries: about 96% usable going fresh to picked over, with a published range of 92–100%. That is a cost factor of 1.04: for every kilo you need ready to use, buy 1.04 kg as purchased.
Typical yield96%
Cost factor (AP ÷ EP)1.04
Lost in prep4%
Yield by preparation stage
| Stage | Average | Range | What is lost | USDA item |
|---|---|---|---|---|
| Fresh → picked over | 96% | 92–100% | Stems and spoiled berries | 356 |
Pick blackberries over just before use: soft fruit is the main loss, and it grows each day they sit.
What the yield does to the cost
| Usable blackberries needed | Buy (as purchased) at 96% |
|---|---|
| 1 kg | 1.04 kg |
| 5 kg | 5.21 kg |
| 10 kg | 10.42 kg |
Use 96% in the yield calculator →
Yield source: USDA Agriculture Handbook No. 102, Food Yields Summarized by Different Stages of Preparation (Matthews and Garrison, USDA Agricultural Research Service, 1975), Table 1, item 356 (US samples of fresh blackberries). Your own case is the real number: weigh it in the yield calculator.
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