very slow fermentation/very dark yeast
Posted: Thu Mar 14, 2013 7:13 pm
I started a Festa Brew Red Ale kit Monday night. Started the yeast of in water that was perhaps a little too hot, maybe around 40 degrees C for 7 minutes or so.
Sanitized the primary properly and dumped in the wort, making sure to get some aeration on the go during this.
Poured in the yeast slurry, mixed it really well, and covered the primary.
Fermentation as of last night had not started
.... I got the SG about 24 hours ago and it was still 1.050... as in nothing happened over 48 hours
. I agitated the yeast cake at the bottom a bit just by moving the primary around. A few hours later I noticed a bulge in the lid, so I let off the excess gas and snapped the lid back on. This told me the fermentation seemed to have started.
Overnight last night, not too much went on and no CO2 buildup.
I gave it another little jostle before work today. Came home and there was some pressure buildup with a weak looking foam layer on the top (2mm thick). This tells me fermentation is slowly happening BUT one thing I'm noticing is a really dark layer on the bottom of the primary. Normally the yeast cake is lighter, almost tan, but this is really dark. It looks like chocolate syrup in the bottom!
Is this dead yeast? Did I kill off yeast when I started it with the water too warm? I'm going to let it go a few days longer before racking and check the SG a couple of more times. Should I pitch more yeast?
... yes I'm a newb
Other kits I've done have had a way more rigorous primary fermentation.
tks,
Sanitized the primary properly and dumped in the wort, making sure to get some aeration on the go during this.
Poured in the yeast slurry, mixed it really well, and covered the primary.
Fermentation as of last night had not started


Overnight last night, not too much went on and no CO2 buildup.
I gave it another little jostle before work today. Came home and there was some pressure buildup with a weak looking foam layer on the top (2mm thick). This tells me fermentation is slowly happening BUT one thing I'm noticing is a really dark layer on the bottom of the primary. Normally the yeast cake is lighter, almost tan, but this is really dark. It looks like chocolate syrup in the bottom!
Is this dead yeast? Did I kill off yeast when I started it with the water too warm? I'm going to let it go a few days longer before racking and check the SG a couple of more times. Should I pitch more yeast?
... yes I'm a newb
Other kits I've done have had a way more rigorous primary fermentation.
tks,