You're welcome. That's how I keep mine (in the fridge in a ziplock sandwich bag). Never been any issues so long as the yeast isn't expired........ thanks for both of your replies.
You said you're keeping it for several month in the fridge, I have some EC-1118 in there for about 2 years but these are aluminum vacuum packs.
They are still ok, even though I've got the feeling that the yeast is going a little weaker now.
I'm expecting a big pack in the near future and I'm worried that after opening the vacuum pack that it wont last as long as the sealed packs.
Would diverting into several zip-lock bags be good enough ?
Thanks again for your help .......