Potassium Metabisulfite Addition Calculator

Posted by Dinesh on 29-07-2019T02:39

The potassium metabisulfite (K₂S₂O₅) is a white crystalline salt, which contains 57.6 % sulfur dioxide (SO₂). By using the following equation,you can determine the amount(weight)of potassium metabisulfiteto add to the juice/wine depending on the specific needs.Potassium metabisulfiteis dissolved in warm water before being used. Please note in the following equations:

SO₂ addition(mg/L) = Target SO₂(mg/L) – Current SO₂(mg/L)

This calculator calculates the required potassium metabisulfite addition using total volume, free so₂ addition, binding factor values.

Calculate Required Metabisulfite Addition to Wine

Formula:

$P o t a s s i u m M e t a b i s u l f i t e (k_{2} s_{2} O_{5}) = \frac{v \times f r e e S O_{2}}{0.576} \times f \div 1000$

Where,

v is volume
f is binding factor

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