Starter with DryYeast

[PaulHilgeman]

Against the normal advice, and since I cant get to the LHBS, I just diid a 5L starter with 1 pack of US-05. I am brewing 10gal of a 1.075 IIPA on Wednesday and only had 1 pack. I *think* I will still be underpitching by a bit, but I dont really think I had any other option here. Anyone else tried something similar?.

 

[broadbill]

You should be fine...there really isn't any reason you can't do a starter with the dry yeast. The reason most people don't is that its cheap enough and the cell counts are high enough that you can pitch directly.

A

 

[samc]

The reason most people don't is that its cheap enough and the cell counts are high enough that you can pitch directly.

A

Not really - read what Danstar says in FAQ's


I always aerate my wort when using liquid yeast. Do I need to aerate the wort before pitching dry yeast?

No, there is no need to aerate the wort but it does not harm the yeast either. During its aerobic production, dry yeast accumulates sufficient amounts of unsaturated fatty acids and sterols to produce enough biomass in the first stage of fermentation. The only reason to aerate the wort when using wet yeast is to provide the yeast with oxygen so that it can produce sterols and unsaturated fatty acids which are important parts of the cell membrane and therefore essential for biomass production.

If the slurry from dry yeast fermentation is re-pitched from one batch of beer to another, the wort has to be aerated as with any liquid yeast.