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Potassium Metabisulphite 1 kg - Cleaners and Sterilsers

Potassium Metabisulphite 1 kg from dowricks.com
Product Code: 4589
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  • Campden Tablets Campden Tablets Jul 01, 2014 What do campden tablets do and why? These are basically sodium / potassium metabisulphite in tablet form. They can be used to sterilise wine and beer ju..

Potassium Metabisulphite 1 kg

Potassium metabisulphite is a white crystalline powder with a pungent sulfur odour. Its main uses are as an antioxidant or chemical sterilant. Potassium metabisulfite is generally preferred to sodium metabisulphite as it does not contribute sodium to the diet.

Uses in Wine: Potassium metabisulphite is a common wine or must additive, where it forms sulfur dioxide gas (SO2). This both prevents most wild microorganisms from growing, and it acts as a potent antioxidant, protecting both the color, and delicate flavors of wine. Without it most wines would taste like a rather poor sherry, vinegar, or some other equally disgusting flavor.

Typical dosage is 1/4 tsp potassium metabisulphite per 5 gallonst of must (yielding roughly 75 ppm of SO2) prior to fermentation, and 1/2 tsp per 5 gallons (150 ppm of SO2) at bottling.
Winemaking equipment is sanitized by spraying with a 1% SO2 (2 tsp potassium metabisulphite per L) solution.

Uses in Beer: Potassium metabisulphite is sometimes used in the brewing industry to inhibit the growth of wild yeasts, bacteria, and fungi. This is called stabilizing. It is also used to neutralize chloramine that has been added to tap water at the source as a disinfectant. It is used both by homebrewers and commercial brewers alike. It is not used as much for brewing beer, because the wort is almost always boiled, which kills most microorganisms anyway. It can also be added to strike water (the water used to mash the barley) in order to remove chloramines which can cause phenolic off flavors in beer (TCP).

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