90%
Oyster mushroom yields 90%
You buy oyster mushroom by its whole weight, but you only plate 90% of it. That 10% loss is real cost the invoice never shows — here's the math.
At 90% yield, oyster mushroom carries a ×1.11 trim tax: its usable part costs the invoice price times 1.11.
Yield is the fraction of an ingredient that actually reaches the plate after you clean, peel, and trim it. What you pay is the AP (as-purchased) price; what it costs on the plate is the EP (edible-portion) price.
Trimming the dry stem ends is the only real loss — mushrooms are nearly all usable.
Say your invoice shows $7.00 per lb of oyster mushroom (an example AP price).
At 90% yield, your real cost is $7.78 per lb EP — because $7.00 ÷ 0.90 = $7.78.
AP price is illustrative; the EP figure is computed (AP ÷ yield). Use your real invoice price below.Yield breakdown
| As-purchased (AP) | 100% |
|---|---|
| Edible portion (EP) | 90% |
| Lost to trim | 10% |
Source: CIA Standard Yield Tables.
Common questions
What is the yield of oyster mushroom?
Oyster mushroom typically yields 90% edible portion of its as-purchased weight, per the CIA Standard Yield Tables.
How much oyster mushroom is lost to trim?
About 10% of the as-purchased weight is lost to cleaning, peeling, and trimming before it reaches the plate.
How do you calculate the edible-portion cost of oyster mushroom?
Divide the as-purchased price by the yield: EP cost = AP price ÷ 0.90. At 90% yield, the trim makes your real plated cost meaningfully higher than the invoice price.
One ingredient's trim is the tax above — a plate stacks ten of them. The calculator adds them up.
Sourced: CIA Standard Yield Tables, via the Plate Cost Calculator · what yield means · edible portion