K-meta is relatively inexpensive. I get a pound of it for about 4.00. I use it both as the preservative and in a solution with water for a sanitizing agent. I'd recommend you get some in addition to the packets that come with wine kits. I keep a handy spray bottle with sulfite solution for spraying areas that I make wine in, as well as spraying equipment like spoons, hydrometer, etc.it also calls for some K-meta... i swear i had some with the fruit kit i got... maybe i misplaced it.
im wondering if i misunderstood... is grape tannin an Absorbic acid... or would it say "Absorbic Acid" on the jar?
again First time!