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

Maximum pH

Upper bound of the selected pH range.

Maximum TA (g/L)

Upper bound of the selected TA range.

Minimum pH

Lower bound of the selected pH range.

Minimum TA (g/L)

Lower bound of the selected TA range.

pH

Measured pH of the wine or must.

TA (g/L)

Titratable acidity expressed as tartaric.

Compare measured pH and titratable acidity independently with caller-supplied ranges; the result is a specification check, not a sensory balance judgment. 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]

pH status

Whether pH is below, within, or above its supplied range.

TA status

Whether TA is below, within, or above its supplied range.

Within ranges

Whether both measurements are inside their supplied ranges.

• 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.

• 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.

• Ethyl Acetate Aroma Threshold Checker

  Compare measured ethyl acetate with a caller-supplied sensory or process threshold; perceived character and threshold vary with concentration, wine matrix, and assessor.

• Brettanomyces 4-EP Risk Checker

  Classify measured 4-ethylphenol against caller-supplied noticeable and high thresholds; sensory response varies with wine matrix, other volatile phenols, and the assessor.