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

Proposed dose (g/L)

Proposed citric acid dose.

Dose cap (g/L)

Maximum dose under the applicable specification.

Compare a proposed citric-acid addition with a caller-supplied cellar or regulatory cap and report the amount over that limit. 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]

Excess over cap (g/L)

Amount by which the proposal exceeds the cap, if any.

Within cap

Whether the proposed dose is at or below the cap.

• 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.

• Charcoal Color Fix Dose Calculator

  Convert a selected activated-charcoal treatment rate into total mass and compare it with a caller-supplied product, trial, or regulatory limit.

• Diacetyl Threshold Butter Note Checker

  Compare a measured diacetyl concentration with a caller-supplied sensory or process threshold and report the excess; perception depends on the wine matrix and assessor.

• Lightstrike Risk UV Exposure Checker

  Convert exposure duration and measured bottle transmission into equivalent unfiltered light-hours, then compare that value with caller-supplied lightstrike thresholds.