DIY: Home Made CO2 Guide

oldgoalie

Member
we have tons of bakers yeast, or does it have to b brewers yeast?

If this works, i will smoke a large bud in your honor, and i don't smoke the herb.
It's only for my uncle dying of cancer.

every option i've looked at is over $200 to buy and install.
 

XxNinjaxX

Well-Known Member
could you do this with the 5gal water jugs? or would it get too nasty by the time it was done?

You sure cud, i just used the 2L bottle as it fit's nicely amongst my grow..
Ive seen people that actually brew their own beer in their grow room as it does the same thing. But that is still only 1 tablespoon of yeast, so it doesnt ferment as much.. i guess ud have 2 up the recipe, tho id do it gradually so its not a big mess..

we have tons of bakers yeast, or does it have to b brewers yeast?

If this works, i will smoke a large bud in your honor, and i don't smoke the herb.
It's only for my uncle dying of cancer.

every option i've looked at is over $200 to buy and install.

Baker's Yeast works just as good. You will get ppl saying that it MUST b brewers yeast due to some crap about it being able to hold up to the fermentation process better, but i have used both, and not been able to notice the difference.

I vote to sticky this great setup.

All in Favor.
Haha, thanks for the support, but it is already a Sticky :)
 

XxNinjaxX

Well-Known Member
is it worth giving your plant co2 in the last two weeks of flowering
Yep, ur plants can benefit from it right throughout the growth. In the last 2 weeks it should give u a quicker ripeness and that little bit extra weight.

lol my bad. Im just a lil slow.
Thats cool man, we all r sometimes - especially trying to find our way around this site wen we 1st join..

Peace :peace:
 

CO2man

Member
I have been trying this method since 3 weeks ago, but without the release valve...... is that ok too?
 

XxNinjaxX

Well-Known Member
I have been trying this method since 3 weeks ago, but without the release valve...... is that ok too?
Yeah man, so long as the gas can escape.. The only reason i put the release valve in is so u can tell when it is time to change the mixture...
 

odin92681

Member
Anyone????
I believe there is a limit to the amount of CO2 a plant can intake but with a setup like this wont go to that limit. Maybe someone on the forum has a toy to measure ppm (?) in the air and find out what the difference is. Either way more CO2 is better than less for plants :peace:
 

whatapothead

Well-Known Member
5gal setup
9.5 cups of sugar
9.5 tbsp of yeast
2.5 gal of water

one thing i'm worried about.... is this going to put off a crap load for 1-2 weeks like the 2litre or is going to just last for like a month or two?

aka ... is the pressure going to build so much that it forces it out or will it slowly ferment?

also kinda worried about coming back and finding a huge mess cause it blew the cap off and overflowed...
 

Roland

Active Member
5gal setup
9.5 cups of sugar
9.5 tbsp of yeast
2.5 gal of water

one thing i'm worried about.... is this going to put off a crap load for 1-2 weeks like the 2litre or is going to just last for like a month or two?

aka ... is the pressure going to build so much that it forces it out or will it slowly ferment?

also kinda worried about coming back and finding a huge mess cause it blew the cap off and overflowed...
make sure there is hole in the cap to release pressure .. fermentation is what makes the CO2
 

whatapothead

Well-Known Member
haha i know... i will be using one of the bubble valves...

but you think its going to slowly make the gas or is it going to go crazy and make it all at once?
 

XxNinjaxX

Well-Known Member
No worries, keep us updated. I did it in a bucket once - tried to make some wine at the same time.. It didnt go down too well..
 

alan666

Member
Hey guys, the valve your talking about is called an air lock, its purpose when used to brew wine/beer is to stop nasties entering the brew, ie vinegar fly/fruit fly geting into you brew and spoiling it. it is also an indicator leting you know when the ferment slows, i would sugest that if this method is used that you dont have the extractor fans running during lights on, sealed room only, i used a piece of 4mm tubing to push into the top of the airlock tightly and then positioned this directly over my plant.

peace
 

dnkronic

Well-Known Member
5gal setup
9.5 cups of sugar
9.5 tbsp of yeast
2.5 gal of water

one thing i'm worried about.... is this going to put off a crap load for 1-2 weeks like the 2litre or is going to just last for like a month or two?

aka ... is the pressure going to build so much that it forces it out or will it slowly ferment?

also kinda worried about coming back and finding a huge mess cause it blew the cap off and overflowed...

The yeast should eat up all the sugar in about two weeks regardless of how much you up the scale. I am a brewer, and i have found that no matter how much fermentable sugars I add to my beer, it usually slows down to a crawl around 8th to 12th day. When you brew you know the fermentation stage is done when you can count a minute between bubbles in the airlock. After the first day it will constantly bubble because the krausen (the foamy head yeast produces at its highest point of fermentation) from your yeast culture produces a massive amount of co2. After that the amount of co2 given off by the yeast reduces little by little every day. I have made beer that had 5 lbs of sugars and I have made beer that is 13+ lbs of sugars. Even though that is a drastic difference in sugar content, the yeast seems to use most of it by day ten.
If you wanted to get the most co2 you can by using this method, I would reccommend changing them out once a week.

Also, can someone tell me the point of using an airlock if you are not sterilizing the sugar water before you add the yeast? A lot of people here seem to have a problem finding them.. Airlocks are used in homebrewing to keep potential contaminants out of your beer while letting out the co2 produced by fermentation. if you are not sterilizing the sugar water before you add your yeast is an airlock even neccisary for this application?
 
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