CO2

[pmoyniha]

I just bought a magnetic stirrer/heating plate for my Yeast-CO2 system. I was wondering what temp you folks keep your mixture at?

Thanks,
Pat

 

[pmoyniha]

Anyone???

 

[knutty]

when i was playing with a DIY CO2, i kept mine at about 90-100 degrees. that seemed to yield a lot of CO2. much higher and i think you would start to kill the yeast.

 

[pmoyniha]

Thanks!

How mch did this effect the life span of the yeast, I mean how often did you have to change your system?

 

[Fly258]

Mine is at room temp and has been running 2 weeks........still going strong. I tried raising the temp a little and the mixture frothed up and flowed out of the bottle. luckily it wasn't connected to the tank at the time

 

[pmoyniha]

What ratio of sugar:yeast:water do you use?

 

[Fly258]

2 cups of sugar, one sachet of yeast (about a teaspoon full) in a 3 litre bottle.
All measurements +/- 50%

 

[njparton]

2 cups of sugar, one sachet of yeast (about a teaspoon full) in a 3 litre bottle.
All measurements +/- 50%

I plan to try this out at the weekend.

I don't mean to be picky, but i want to get it right: when you says 2 cups, do you mean mugs or tea cups? How much space to you leave at the top of a 3L bottle?

Thanks

 

[njparton]

Doesn't the yeast consuming the sugar produce heat anyway?

My pop bottle is quite warm to the touch - much warmer than room temp of about 20-22C.

 

[pmoyniha]

I havent found much of an increas in temp, although the glass bottle likely absorbs any heat produced.
A lesson was learned today though. It is really easy to overheat yeast, and they dont like it. I turned the temp up a few notches and it went great for about an hour then everything stopped and the water and yeast kinda layered out. (clear on top, white on bottom). I don't know what temp it was at as I had no thermometer, but I know it was too high. Oh well, good thing yeast and sugar are cheap.

 

[david27]

How do you control how much CO2 goes into the tank and what size tank are you using the system on?

I was thinking of trying Co2 using the yeast method prior to buying a cylinder system for my 120gal.

Cheers

David

 

[pmoyniha]

I'm using mine on a 20gal. It really depends on the efficiency of the transfer of the CO2 into the water. If that is high, you need less CO2 produced. Mine is kinda low as I haven't really rigged up much of a reactor yet, exam time right ow. But I would say that for 120 gallons you will need a few 2l bottles at least. I am sure there is someone on here with a bigger tank that can make a suggestion. Also, I learned most of what I know buy searching DIY CO2, yeast method etc. in google. You can probably find someone or another forum that has posted the info you want.

Good Luck!
Pat

 

[Adrinal]

rofl
cups is an old English measurment us stuborn Americans refuse to give up


http/www.sciencemadesimple.com/conversions.html

1 cup = .24 liters

 

[nightlife20]

i read on a ste that its
2 cups sugar
1 tsp of yeast
and a tsp bicarbonate of soda to activate it......


dont u lot use that?

 

[njparton]

Don't know why you'd need the bicarb - surely that would kill the yeast anyway?

Sugar+yeast+water+room temperature is all you need.