Must/Wine Sugar and Acidity Calculator

With this UtileApp you can easily correct must or wine to achieve the ideal alcohol content and acidity, both before fermentation and during maturation.
It is the perfect tool for oenologists, craft producers, and wineries looking to enhance the balance and organoleptic stability of wine.

Main features

  • Sugar correction: calculates the amount of sugar (in grams or kilograms) to add to increase potential alcohol content
  • Acidity correction: determines the amount of tartaric acid to add or reduce to reach the desired total acidity
  • Based on simplified oenological formulas:
    • +1% vol ≈ 17 g/L of sugar in the must
    • Δacidity (g/L) × volume (L) = total amount (g)

Required data

  • Total volume of must or wine (in liters)
  • Current and desired alcohol content (% vol)
  • Current and target total acidity (g/L)

The app automatically calculates

  • Grams per liter and total kilograms of sugar to add
  • Amount of tartaric acid to add or reduce
  • Balance checks and notifications if values are already correct

Why use it

  • Helps plan the correction of the must before inoculating the yeasts
  • Allows for more balanced and harmonious wines
  • Reduces the risk of errors in manual additions
  • Also useful for educational activities and microvinification trials

Features

  • Multilingual (compatible with Polylang)
  • Responsive design, usable also from smartphones or tablets
  • Clear and copyable results with one click
  • Ideal for white, red, rosé musts and base sparkling wines

Note: the calculations provided are indicative and must always be verified through laboratory analysis before making any corrections to the must or wine.