BaldyOnFire
Active Member
Jeez, if I haven't been reading over a combined 20 hours in the last few months I'd be shocked. I just want to pitch the right amount of yeast, but I also don't want to over-pitch too much either
So, I now have both a 1 and 2 liter flask and a stir plate. Let's say I'm brewing a pale ale with an OG of 1.056. I'll need about 227 billions cells (going off memory). Let's say I'm starting with 70bn cells (a not exactly new smack pack).
The main issue is that I can't find anywhere that can tell me how much growth a stir plate adds vs. no stir plate in a starter. One place I see about 10x more cells. I see all these calculators (and have used them as well as Beersmith) then the difference in growth rates from Kai and Jamil.
Once and for all, if I were to take these 70 bn cells, put them in a OG 1.040 starter, throw on the stir plate, how many cells should I have after 18 hours in both the 1 liter flask and the 2 liter flask? I also see varying amount of wort to be used in the starters.
Obviously, if we know the growth rates it will be smarter to work backwards, as in, how big should my starter be if I need to get from 70bn cells to 230 bn cells using a stir plate?
Lastly, I'd like to generally just build big starters in a 2 L flask, figure out how much I need and save the rest for a future batch too.
TIA
So, I now have both a 1 and 2 liter flask and a stir plate. Let's say I'm brewing a pale ale with an OG of 1.056. I'll need about 227 billions cells (going off memory). Let's say I'm starting with 70bn cells (a not exactly new smack pack).
The main issue is that I can't find anywhere that can tell me how much growth a stir plate adds vs. no stir plate in a starter. One place I see about 10x more cells. I see all these calculators (and have used them as well as Beersmith) then the difference in growth rates from Kai and Jamil.
Once and for all, if I were to take these 70 bn cells, put them in a OG 1.040 starter, throw on the stir plate, how many cells should I have after 18 hours in both the 1 liter flask and the 2 liter flask? I also see varying amount of wort to be used in the starters.
Obviously, if we know the growth rates it will be smarter to work backwards, as in, how big should my starter be if I need to get from 70bn cells to 230 bn cells using a stir plate?
Lastly, I'd like to generally just build big starters in a 2 L flask, figure out how much I need and save the rest for a future batch too.
TIA