Toolkit / Stabilizer Calculator

Sulfite & Sorbate Stabilizer Calculator

Calculate exact Potassium Metabisulfite (K-Meta) and Potassium Sorbate additions based on batch pH to prevent re-fermentation when backsweetening.

0.8 PPM Molecular SO₂ Standard

Target Protection Level

Batch Volume (Gallons)

0.5 Gal 30 Gal

Measured Batch pH

3.0 pH (Acidic) 4.0 pH (High Risk)

Current Free SO₂ (PPM, optional)

Target Free SO₂

PPM

Required for protection

Potassium Metabisulfite

Potassium Sorbate

Step 1: Rack your brew until clear. Add K-Meta and Potassium Sorbate together and stir gently.

Step 2: Wait 24 to 48 hours BEFORE adding sweetening agents (honey, sugar, juice) to ensure active yeast reproduction is halted.