BEST mix of sugar/yeast/water to get most co2?

Gastanker said:

Anyone what is using yeast/sugar for CO2 should really read this article (the link) and then do the math. http://www.hydrofarm.com/articles/co2_enrichment.php

If the article goes over your head here is a simplified formula:
X*.0013 = Y
(Y/8.7)13.2=Z
X=cubic feet of grow room Z = amount of sugar in pounds used per day

So if your room is 4x4x8 then you would want to use a total of 0.25lbs of sugar per day. You should either use a 4 gallon container or four 1 gallon containers for this. Start off with 1lb of sugar per container (or 4lbs in the 4gallon) and add an additional 1/4lb per container every 4 days (or 1lb in the 4gallon). This will keep the area at 1300ppm.

Click to expand...

im definately going to be doing this

Sorry this is kind of dead, but o got a real giggle how the highly accurate people detector co2 meter noticed no change when mathematically it would have been equivalent to a person hiding in a room for almost a whole day. It just tickles me.

Anyway, I will be adding co2 to my grow soon. It's a small cabinet, 8 cubic feet actually haha. I plan on piping the co2 right onto the intake vent to start, then when i get the time i will move the intake vent to the top and seal off the light from the cabinet to effectively make a sealed room. I plan on going about double the required amount as initially the room will not be sealed.


Anyone able to help with the math on a 8 cubic foot room? Lol

((8*.0013)/8.7)13.2 = .0156lbs which is about 7 grams. Personally I would just use a cup of sugar - way more than you need but if you're venting the area it should work great.

karr said:

Anyone able to help with the math on a 8 cubic foot room? Lol

Click to expand...

Gastanker said:

((8*.0013)/8.7)13.2 = .0156lbs which is about 7 grams. Personally I would just use a cup of sugar - way more than you need but if you're venting the area it should work great.

Click to expand...

Thanks!

I just came across a 3qt bottle (last glass of apple juice) so i plan on using that, running a tube to a standard mason jar doing the whole bubbler through the water thing (like an airlock) mostly because a visual indicator for when production has slowed will help a newb brewer like myself.

So on my trip to the city tomorrow i will try to pick up some brewers yeist and maybe some corn sugar.

I know it's not going to be night and day, but if i revert some of my cooling changes i can get back to the mid 80s pretty easy.

Tinkering with the little things is fun to me, so I'm excited


Ah and im going to be starting at week 4(end) so it may be a bit late really, but ah well. It's just a side project anyway.

The best use for yeast, sugar and water is making moonshine

Aley said:

You want more yeast than sugar! The sugar is there to feed the yeast! When watering with it and cooking you do the same thing bloom and feed the yeast.

Click to expand...

I'll start by saying using sugar and yeast to make CO2 is a complete waste of time, yeast, and sugar.

Having said that, you have it backwards. The yeast feeds on the sugar and starches. If you have more yeast than sugar the yeast will soon run out of food and die. It's the same as if you were making bread or wine. You use pounds of sugar but only a small amount of yeast when making wine. When making bread where the starch in the flour is what feeds the yeast you use a tiny amount of yeast in comparison to the amount of flour.

There really wasn't a need to revive a 10 year old thread that's basically nonsense.

Ive heard old schoolers talk about little bunny rabbits in a cage for CO2. Apparently they have a high metabolism. Just need to be careful about bugs when they come in for the first time and to only get them pelletized food, no hay or stuff that can carry shite. But this is well and truly into anecdotal and untested... And most likely very wrong on some moral level...
But im sure you could argue for it being organic.

Rocket Soul said:

Ive heard old schoolers talk about little bunny rabbits in a cage for CO2. Apparently they have a high metabolism. Just need to be careful about bugs when they come in for the first time and to only get them pelletized food, no hay or stuff that can carry shite. But this is well and truly into anecdotal and untested... And most likely very wrong on some moral level...
But im sure you could argue for it being organic.

Click to expand...

plus their poop is a great fertilizer and feed them defoliated leaves and you got a completed nutrient cycle haha