Sorry. Kmeta is shorthand for Potassium Metabisulphite. Sodium Metabisulphite is also available, but most folks use Kmeta since they say NaMeta (Sodium Metabisulphite) can produce some not desired flavors in your wine, but I don't remember which off flavors. You need to add Kmeta to your wine every 3 months during aging to protect against oxidation.
Pam in cinti