Kmeta solution

[Vlabruz]

If it burns your nose is it still good? I've had some in a sealed bucket for a few months. Its still pungent. Im going to bottle some cab today and wanted to dip my corks in it. And put some in my bottle rinser

 

[FlamingoEmporium]

Quite likely still good. Mine stays in a sealed container for several months. Be careful sniffing that stuff

 

[winemaker81]

If it reeks, it's still good, and I also emphasize @FlamingoEmporium's warning about sniffing. Waft your hand over the jug mouth towards your nose, and even then, sniff gently. Use in a well ventilated area (if possible) and run a fan.

I keep mine in a Carlo Rossi 4 liter jug with a plastic cap (I toss the metal ones), and use 1 to 2 gallon food-grade buckets for dousing small items and tubes. The solution is re-usable to a point -- as long as the solution is clear (I'll accept a few particles) I keep it, until the jug is about half empty (some gets expended each time, and for some uses I do not try to reclaim it). Typically we're looking at 6 months. I've kept a jug as long as a year, but in hindsight that's probably too long.