Tuesday January 23, 2018

Potassium Metabisulfite 1 lb


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Potassium Metabisulfite, powder releases SO2 into apple juice to protect from bacterial infection and/or wild yeasts.

Potassium and/or Sodium Metabisulphite in all forms are not very shelf stable as they absorb moisture from the air and become less effective.
Our packages are all oxygen barrier zip lock bags for re-use, make sure to empty as much air as possible and keep them sealed.
Shelf life is generally 3-6 months depending on care, replace your stock each year.

Consult a reputable book for addition rates based on the pH of your juice. We suggest Andrew Lea's "Craft Cider Making" or Annie Proulx's Cider: Making Using & Enjoying Sweet & Hard Cider

Usage of powdered potassium metabisulphite can be calculated with the following formula:
Amount to use (g)= [{SO2 required(PPM) X # of liters} / 1000] X 1.818181

Do not interchange Sodium Metabisulphite with Potassium Metabisulphite as the amounts of SO2 vary with each!

  • Shipping Weight: 1lbs

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