kmeta shelf life...

[Siwash]

how long do you keep your kmeta once you've opened the package?

thanks

 

[richmke]

All potassium metabisulfite grades should be stored in a cool, dark place.
When the storage temperature is maintained at a maximum of 25 °C and
the maximum relative humidity is 45%, the shelf life is six months.
http://worldaccount.basf.com/wa/NAF...umentum:eCommerce_sol_EU:09007bb280047673.pdf

IMHO, shelf life in sealed container, for our purposes is much longer (years).

 

[dralarms]

I've got some 2 years old, still dry, and it will curl your nose hairs if you smell it.

 

[dralarms]

I've got some 2 years old, still dry, and it will curl your nose hairs if you smell it.

Told a friend, fellow wine maker, to sniff very lightly and he took a whiff and about passed out on me

 

[TonyP]

I know 6 months is the rule of thumb but I've had it last over a year. And the potency is pretty easy to figure out.

 

[Siwash]

Had mine mistakenly stored in a cellar with fluctuating temps and humidity... it got hot in there this summer and the humidity was HIGH! I think I am going to play it safe and toss it

 

[NorCal]

It's cheap. I toss mine after 12 months regardless.

 

[Siwash]

You're right about that, NorCal!

 

[Johny99]

It's cheap. I toss mine after 12 months regardless.

Me too. I keep it in the fridge, use the old stuff to make cleaning solution.