Questions tagged [pitching-rate]

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7
votes
2answers
158 views

Pitching rates and ester formation

From what I read in most publications, ester production tends to increase at lower pitching rates. It's not a linear relationship by any stretch of the imagination; in fact there seems to be some sort ...
5
votes
3answers
1k views

Number of cells in a packet of dried yeast

I'm trying to improve my understanding of pitching rates, and I'm struggling with some apparent inconsistencies. An often used starting rule is to pitch about 750,000 cells per milliliter per degree ...
3
votes
1answer
5k views

How much yeast to add for bottle conditioning

Most of the time, adding yeast at bottling time is not necessary since enough healthy yeast remain in suspension to consume the priming sugar. But in cases where the existing yeast might not be ...
2
votes
1answer
200 views

How would I estimate yeast concentration of washed yeast for Mr Malty's calculator?

I washed some yeast ( US 05 ) from my last brew; and I now have 3 jars of yeast which separated out nicely overnight. They're around 2/3 yeast, 1/3 liquid at the moment, with no trub as far as I can ...
1
vote
1answer
327 views

What is the approximate batch size/OG limit for US-05 11g packet? Have I used enough?

I've started a brew with an OG of 1.065 in a 23L batch. I pitched a rehydrated 11g pack of US-05 and after 5 days I took a FG reading when I observed no bubbles after some time; it came out at 1.028 - ...
2
votes
1answer
160 views

Starter quantity w/ Mr. Malty Calculator

I have an imperial stout that seems to have slowed fermentation ~ 1.040. I made a 2L starter w/ Super San Diego yeast on stir plate and pitched it at high krausen.. no decanting. Based on Mr. Malty's ...
20
votes
4answers
18k views

What Type and Power of Microscope For Observing Yeast Cells

I'm interested in buying a microscope that I can use to observe yeast cells. Ideally, I'd like to use this to count cells in region and do calculations to get estimated populations (though I don't ...
2
votes
1answer
476 views

Do I need a yeast starter for a 1.040 gravity wort?

I'm brewing on Sunday (today is Friday), and I neglected to get my yeast (WY1056) until just this afternoon. I could make a starter, but I don't know if it would reach "high krausen" in time for ...