The OpenFermenter Wine Maker's/Distiller's Calculator is an extremely handy tool for the wine maker to calculate the amount of free and molecular SO2 in wine from the amount of source added.
Supports multiple source chemicals.
Also, it contains a calculator to assist with Total Acidity titration calculations and accommodates different NaOH Normalities.
Also, it has a powerful Pearson Square calculator for computing final concentrations based on volume and initial concentration of two components. Or, it can be used to calculate addition volumes to give the desired final concentrations.
Also has a very easy to use Distillation calculator. The distillation calculator quickly estimates the volume and alcohol percentage for the Heads, Hearts, and Tails fractions of a distillation based on the still column temperatures.
Very easy to use.
Persist settings between uses. Really makes it a joy to use.
Also, version v5 includes a new Distiller's calculator that makes calculating cuts a breeze!