Originally Posted by Hammy71
We can have an even longer debate about craigtube and his advice
True, so true.
What everyone's trying to tell you, OP, is that it just doesn't matter one way or another (to the yeast, at least). This is an age old debate, and will likely never really be solved. When I use dry, really, it depends on if I remember, or care to bother, rehydrating. I'd say it goes about 50/50, and I cannot for the life of me see an upside (or a downside) to rehydrating or not rehydrating. I also read a lot and the only thing I can find that states anything concrete about rehydrating in water vs. wort (cuz really you're rehydrating whether you're rehydrating or not, cuz the wort is wet.
) is that, due to osmotic pressure on the cell walls or something, some of the yeast can die off when pitched dry into wort. Some studies estimate "up to 50% loss" in viability, some far less. The answer, pitch two packs of dry. Or don't. It really doesn't matter. Long story not so long, either way you go, you'll make beer. There's far more important concerns in home brewing than hydrating yeast in wort vs. in water.
Oh, and intermingled in between the rare good points that Craig makes in his videos is a bunch of absolute nonsense. I follow him on YouTube, and enjoy his vids quite a bit, but I've always thought the poor guy would serve himself (and many of his followers) very well if he would just pick up a home brewing book and read it.