Campden tablets are an easy way for a new winemaker to add a measured dose of Metabisulphite to sterilise their must or protect the finished wine. They are traditionally Potassium Metabisulphite but may also be Sodium Metabisulphite
Crush up 1-2 tablet for use per 5 Litres of wine. It is an advantage to dissolve the crushed tablet in a small amount of cooled boiled jug water to add its dispersal into the wine.
Bulk pack is marked as containing Sulphites (E223) and Polyethylene glycol (E1521)