co2

what is the diffrence between dried yeast and active yeast. and can i use the dried yeast 2 make co2. its just that i found some in the cupboard and wonderin... thanx

Theres gotta be some difference cause everywhere i seen the recipe it specifacly says to use active. Good luck

ok m8 thanx

i think that the active yeast (like for making beer) produces larger quantities of gases

i "think"

the difference is active yeast is its active...dry yeast is not thats more for cooking...

yeah... dry yeast needs to be "awakened" and whatnot before cooking with...

i just think the active stuff is more efficient like i said...

the dry yeast turn out the co2 too fast something in two days but active yeast generate co2 for week.you just need shake the bottle with that yeast once a day. i use active yeast and its good thing.

i tried dried yeast and every time i shake the bottle it nearly explodes and there is loads ov bubbles on top with a gush ov air from the hole in the top....

Fill the container only 7/10 full and don't shake it up and down furiously, but more of a gentle swirling fashion. You don't want to let the liquid inside hit the hose coming out of the top. Shake/swirl it once a day to stimulate the Co2 process given off by the yeast

thanx auntie i will swirl from now on..

just got a lump ov active yeast off asda for free so tryin that instead ov dried

do you get just the baking east, or the one for beer?
and how to u use it? put it in water to produce co2? thx.

yea the baking yeast ,,water and sugar,and a good swirl that should do the trick

if you have anything that constantly vibrates(like a fan or pump)place the container near there so it gets constantly agetated an produces small amounts of co2 all the time...not just when you swirl it...

its on my fan as we speak...thanx

So you but some yeast in a bottle with some water? and make a hole in the lid? to producee Co2?
Have I got that right? and why is it good for the plants?

Obviously very new to all this. Thanks.

and some sugar or glucose with yeast and water...it will produce co2 after a couple ov good swirls

Wow, this is quite a long thread, all about co2 too, how cool.
As I read this thread, I assume you've pretty much conquered all the other aspects of your grow room?

Because co2 should be about the last thing you look at. I also assume that you are using HID lighting and not cfl's?

Adding supplemental CO2 will benefit the plants only if they are CO2-limited. Which means that, at ambient CO2 levels, the canopy is light-saturated. This is pretty difficult to achieve with CFLs.

Once you've gotten everything else dialed in, and you want additional co2, you wouldnt bother with these home made brews, it's a waste of time and energy.
Peace

well on this subject im going to have dis-agree with videoman....plants need co2 to grow an be healthy.....co2 should be one of the first things in consideration when growing....if you raise the co2 levels by 20% you get 20% faster stronger growth...this is just my opinion...an for small grows the xtra co2 with the bottle helps....

I've yet to hear from someone/anyone growing with CFL's to claim a 20% increase in growth when utilizing homemade co2, or any kind of co2 for that matter.

It would be kind of hard to get the level of light needed, to have co2 be beneficial using CFL's. If your using CFL's and want to add co2 that will actually be helpful to you, design a decent ventilation system.
Peace