Campden Tablets release sulfur dioxide when dissolved in a liquid. They are added in small doses directly to fresh juices 24 hour before adding yeast. This is to destroy any wild molds and bacteria that may have been on the fruit. Campden Tablets are also used in stronger doses with water as an equipment sanitizer. You can use it to sanitize fermenting vessels, hydrometers, wine bottles, hoses or any other glass, metal, plastic or wood that comes into contact with your wine. Each Campden Tablet equals 1/16 teaspoon of Sodium Metabisulphite and will impart approximately 75 parts-per-million (p.p.m.) of sulfur dioxide (SO2) to each gallon of wine. TO PURIFY JUICE: Add one Campden Tablet per each gallon of juice, or for each 8 gallons of crushed fruit. Crush tablets and pre-dissolve them in a small amount of water before adding to the juice. Allow the juice to ventilate in an open container for 24 yours before adding yeast. Double the dosage for fruits that are over-ripe or moldy. TO SANITIZE EQUIPMENT: Clean all equipment with soapy water. Crush and dissolve 16 Campden Tablets per each gallon of water. Sanitize fermentation vessels by putting in 2 to 3 inches of solution in the bottom of the vessel. Seal the vessel air-tight for 20 minutes to allow the fumes from the solution to permeate the inside walls. You can also put in the vessel other equipment such as hoses, hydrometer, air-locks, rubber stoppers to be sanitized at the same time. AT BOTTLING TIME: Add one Campden Tablet per each gallon of wine to preserve its color and flavor. Crush tablets and pre-dissolve in a small amount of the wine first. Bottle immediately after adding. INGREDIENT: Anhydrous sodium metabisulfite Package of 100 tablets