Potassium Sulphite (3.5 g | 0.12 oz)

Regular price $1.25 USD
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Safeguard Your Wine with Potassium Sulphite: The Ultimate Winemaking Tool

Master Winemaking with Potassium Sulphite: A Vital Preservative

Potassium Sulphite, in a convenient 3.5 g (0.123 oz) pack, is a must-have for winemakers seeking to protect the quality and longevity of their wine. Sourced from Italy, this potent antioxidant and sterilant is essential for maintaining wine's natural color and fighting off bacterial spoilage, ensuring that each bottle retains its intended flavor and aroma. 

Key Features:

  • Antioxidant Properties: Acts as a powerful shield against oxidation, preserving the wine's natural color and freshness.
  • Preservative Efficiency: Effectively fights bacteria, extending your wine's shelf life and integrity.
  • Sterilization Capability: Ideal for cleaning and sanitizing winemaking equipment and bottles.
  • Quality Composition: Composed of Potassium Metabisulfite (K2S2O5), with a molar mass of 222.32 g/mol and density of 2.34 g/cm³, ensuring reliable preservation.
  • Versatile Applications: Can also be used in food preservation to maintain natural color and combat bacteria.


Q: How should I use Potassium Sulphite in winemaking? A: For a 6-gallon batch of wine, dissolve 1/4 teaspoon in a 1/2 cup of water with potassium sorbate before bottling.

Q: Can I use potassium sulfite to sterilize winemaking equipment? A: Absolutely. Mix eight teaspoons with 1 gallon of water for equipment or two teaspoons with one tablespoon of citric acid for bottle rinsing.

Q: Is this product also suitable for preserving food? A: Potassium Sulphite effectively maintains food color and protects against bacteria.

Q: What are the physical properties of Potassium Sulphite? A: It has a molar mass of 222.32 g/mol, a density of 2.34 g/cm³, and a melting point of 190°C, making it a robust and effective preservative.

Potassium Sulphite is an invaluable tool in the winemaker's arsenal, not just for its preservative qualities but also for ensuring the wine’s sensory characteristics are perfectly preserved from the vine to the glass. Whether you are a seasoned winemaker or just starting, this product is crucial for achieving professional-quality results.

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