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

H2S (mg/L)

Hydrogen sulfide to bind with copper.

Solution strength (%)

Weight-volume strength of the copper sulfate pentahydrate solution.

Compute the theoretical stoichiometric copper sulfate trial dose for a measured hydrogen sulfide level; bench trials should start well below it. 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]

Trial dose (mL/L)

Stoichiometric solution dose per liter of wine for the full H2S load.

• 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.

• H2O2 SO2 Reduction Dose Calculator

  Calculate the theoretical hydrogen-peroxide solution volume for a 1:1 molar reaction with a specified SO2 mass; actual wine treatment requires controlled trials, analysis, and regulatory review.

• Isinglass Fining Dose Calculator

  Convert a bench-trial or supplier-specified isinglass rate into total product mass for the selected wine volume; it does not determine clarification performance.

• Bentonite Fining Dose Calculator

  Convert a bench-trial or treatment-plan bentonite rate in grams per liter into kilograms of dry bentonite for the selected wine volume.