Dry Yeast and Yeast Nutrients

[spiderwrangler]

I shot out 'foamy'

MIGHT want to see a doctor about that...

[snowcapt]

http://www.youtube.com/watch?v=SL92Bd4k ... ata_player
This might help.

[ziggy]

I actually did a study on this at work in my lab. Rehydrating in warm tap water by sprinkling on top of the water, waiting 15 minutes, then stirring produced the highest viability 98%+ every time. You can get the viabilty down to 75% if you use cold, DI water and shake vigarously immediately after dumping yeast in. You don't want to use wort to rehydrate in because it will cause osmotic shock.

[ToadLicker]

Adding DME to the rehydration defeats the purpose of rehydrating it in water, you might as well just sprinkle it in your wort. Just use straight water.

Ah...thanks.

[ToadLicker]

I actually did a study on this at work in my lab. Rehydrating in warm tap water by sprinkling on top of the water, waiting 15 minutes, then stirring produced the highest viability 98%+ every time. You can get the viabilty down to 75% if you use cold, DI water and shake vigarously immediately after dumping yeast in. You don't want to use wort to rehydrate in because it will cause osmotic shock.

Great information. I will put that in my notebook. Thanks very much for the help and everyone else too.

ToadLicker