How to Use Sodium Metabisulfite for Sanitizing

Sodium metabisulfite is commonly used for sanitizing brewing and winemaking equipment. Follow these steps to safely and effectively use it as a sanitizer:

1. Gather Supplies

• Sodium metabisulfite powder
• Clean water (preferably warm)
• Measuring spoons or a digital scale
• A large container or bucket
• Protective gloves (optional, but recommended)

2. Prepare the Sanitizing Solution

The standard solution is 1 tablespoon (about 15 grams) of sodium metabisulfite per gallon (about 3.8 liters) of water.

• Fill your container with the desired amount of warm water.
• Add the sodium metabisulfite to the water.
• Stir well until the powder is fully dissolved.

3. Sanitizing Equipment

• Submerge all equipment and surfaces to be sanitized in the solution.
• Let them soak for at least 1–2 minutes.
• Swish or move items around to ensure all surfaces are in contact with the sanitizer.

4. Air Dry or Rinse

• Air drying is recommended. Allow items to drip dry after removing them from the solution.
• If you prefer, a quick rinse with clean, boiled water can be done, but many brewers and winemakers use a no-rinse method.

5. Safety Tips

• Never ingest sodium metabisulfite or the sanitizing solution.
• Always use in a well-ventilated area; vapors can be irritating.
• Store the powder and solution out of reach of children and pets.

Note: Sodium metabisulfite can cause allergic reactions in sensitive individuals. Use gloves if you have sensitive skin.