turbo yeast

stoker · Post by **stoker** » Mon Jan 02, 2006 8:00 am

can i use Turbo Yeast for large fermetation quantities? (=more then one sachet)

with an air temperature of -10 to +10 °C

possum · Post by **possum** » Mon Jan 02, 2006 9:50 am

Those temps look very low. when liquid temp is below 0C,frozen wash and no yeast activity

at 10 C yeast may run slow.

Room temp or cellar temp is best

LeftLaneCruiser · Post by **LeftLaneCruiser** » Mon Jan 02, 2006 10:16 am

Possum is right, yet a little addition to that:

Fermentation generates heat, so in large quantities, 100 ltr +, a lower ambient temperature may be profitable:
The heat generated by the fermentation keeps the yeast going, and the lower temperature keeps it from getting too hot and thus stressing the yeast.

I think this might be the better season to do large batches.

KJH

stoker · Post by **stoker** » Mon Jan 02, 2006 12:30 pm

ok thanks

and do i have to use less sachets then the exact times that the wathervolume is larger? or the same?
(pff, difficult sentence)

btw, wash with that much sugar, doesn't freeze at 0°C as far as I know

stoker

knuklehead · Post by **knuklehead** » Mon Jan 02, 2006 1:12 pm

stoker wrote:
btw, wash with that much sugar, doesn't freeze at 0°C as far as I know

stoker

If I was outside buck naked at 0°C I wouldn't do a whole lot of work. Neither will the yeast, it my not freeze your right, it wont do much of anything. I usually put my starters in the fridge if they won't be used for a while, this slows down the yeast activity so I don't have to feed them every day and the fridge isn't even 0°C.

stoker · Post by **stoker** » Sat Jan 28, 2006 12:01 pm

I know you have to play with the temperature if you use more then one sachet of turbo yeast.
is a cold environment enough?, how cold should it be? 15°C, 20°C

and do I have to add the 2 sachets at once?

ponyboy · Post by **ponyboy** » Sat Jan 28, 2006 12:30 pm

What quantity are you talking about fermenting? I know with ale yeast the temp in a 20 L fermenter would be about 1 degree C warmer and 40L about 2 dergrees. I think turbo yeast is about double that. With turbo in a 150 L fermenter I would think it would be maybe 4 or 5 degree C warmer. It also depends on the shape of the fermenter, a taller narrower fermenter would be warmer than a shorter wider one. So just subtract that from the recommended temp and err a little on the cooler side, as a cooler ferment should give cleaner results even if it takes longer.

stoker · Post by **stoker** » Sun Jan 29, 2006 2:20 am

a glass jug of +-65l, and I would fill it with 50l water and 2 sachets of turbo yeast,
at 20°C?

ponyboy · Post by **ponyboy** » Sun Jan 29, 2006 8:05 am

Iwould say 20 - 25 would be fine.