Hi, quick question. I have never used liquid yeast before, and just ordered 2 kits with wyeast activators. I get the gist of how they work (break the nutrient pack and the package swells) but here's the thing. The first package i got seemed fine to me, as far as I could tell, just a packet of liquid. But i got the second pack, and it has swollen up a bit. Now it is not massively swollen as i imagine it will be when i break the nutrient pack, but it does have a significant bubble of air filling the package, at least compared to the other one (since that's my only basis for comparison). But the nutrient pack appears to still be intact because i can feel it moving around in the pack. Is this just a normal packaging variation or has something happened to my yeast pack? I am sorry if this is a stupid question, but i have no experience with liquid yeast, and I am concerned.