Use this oenology calculation to document or plan a defined fermentation, blending, adjustment, stabilization, aging, packaging, sensory, or cellar operation from measured wine parameters.

Bottle cost

Wholesale cost of the opened bottle.

Glass price

Menu price charged per glass pour.

Count the whole by-the-glass sales whose gross menu revenue reaches the bottle cost; this simple recovery point excludes tax, service, waste, and other variable costs. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.^[1]

Glasses to recover

Whole glass sales needed for gross revenue to reach bottle cost.

• Wine chemistry and microbiology depend on temperature, pH, alcohol, sugar, matrix, measurement method, microbial state, legal limits, product formulation, and bench-trial response. Generic doses and thresholds are not production instructions for every wine.
• Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.

Confirm measurements with calibrated winery methods, run scaled bench trials, record additions and lot volumes, check local regulations and supplier specifications, and obtain professional laboratory advice for faults or stability risks.

• Glass Pour Portion Count Calculator

  Divide a bottle into tasting or restaurant pour sizes to see how many glasses it yields.

• Simple ABV from SG Drop Calculator

  Estimate alcohol by volume from the specific-gravity drop using ABV ≈ gravity drop × 131.25; this common fermentation shortcut is not a laboratory alcohol measurement.

• Decanting Time by Style Calculator

  Select a planned decanting time by wine condition using caller-supplied service guidelines; bottle age, condition, and tasting observations still determine whether decanting is appropriate.