GNBrews
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- Mar 24, 2007
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I've used liquid yeast and 1liter starters for almost all of my previous brews over the years (~30 I'd guess), but due to circumstances beyond my control, I'm going to brew this weekend and use dry US-05. I'm brewing an ale with an O.G. of approx 1.060, which according to Mr. Malty requires ~225B cells for a 5.25gal batch.
I've read Jamil and others here on HBT referring to Safale US-05 packets containing 220+ billion cells (~20B/g). However, the datasheet for US-05 from Safale states: "Viable cells at packaging: > 6 x 10^9 / gramme". If I've done my math correctly, that's only 6B cells/gram, which gives only 6B x 11.5g = 69B cells per packet.
Now, I understand that they're saying "at least" 6B cells/gram at the time of packaging, and could understand if there were even twice as many than promised, but 3X might be pushing it?
I've read Jamil and others here on HBT referring to Safale US-05 packets containing 220+ billion cells (~20B/g). However, the datasheet for US-05 from Safale states: "Viable cells at packaging: > 6 x 10^9 / gramme". If I've done my math correctly, that's only 6B cells/gram, which gives only 6B x 11.5g = 69B cells per packet.
Now, I understand that they're saying "at least" 6B cells/gram at the time of packaging, and could understand if there were even twice as many than promised, but 3X might be pushing it?