Twiz420
Active Member
I've seen that many people like to use fermentation for creating CO2 in their grow rooms, but not all of us know how to brew our own beer or wine.
I came up with a relatively simple and cheap way to create a slow and steady release of CO2. It's basically the same as a fermenting bottle of brew in your grow room but cheaper.
Things you will need:
2L soda bottle
Flexi straw or acrylic fish tank tubing
Silicon sealant
Open container to hold fresh water
Warm water
Sugar
Packet of active dry yeast (get this at any super market they come in strips of 3 for like a buck)
Step 1: Drill hole in bottle above where water line will be roughly the same size as your tubing (you can do this to the cap of bottle if using rubber tube) Insert tube of choice and seal it with silicon, let silicon set.
Step 2: Mix warm water and sugar, (I used about 1/3cup per liter and added a few tablespoons of molasses for good measure.) until completely dissolved. Add this mix to your bottle.
Step 3: Add a packet of yeast to bottle, optimum temp of water is between 98-105 for this. too cold and it will not activate, too hot and it will kill your yeast. It should take about 5 minutes for yeast to activate and start making CO2.
Step 4: Place open end of tubing in a container of water, after pressure in the bottle starts building you should start seeing bubbles in your water dish, this is your CO2 being released.
Thats pretty much it, just place this in your grow room, mine is right by the fan to spread the CO2 around. I'm not sure how long this lasts, this type of yeast doesn't stand up to alcohol content as well as brewers yeast and will die off sooner. You can continue to use the same setup that you made, just when your yeast dies make a new sugar water mix and throw in some new yeast. Hope this helps those of you on a budget.
I came up with a relatively simple and cheap way to create a slow and steady release of CO2. It's basically the same as a fermenting bottle of brew in your grow room but cheaper.
Things you will need:
2L soda bottle
Flexi straw or acrylic fish tank tubing
Silicon sealant
Open container to hold fresh water
Warm water
Sugar
Packet of active dry yeast (get this at any super market they come in strips of 3 for like a buck)
Step 1: Drill hole in bottle above where water line will be roughly the same size as your tubing (you can do this to the cap of bottle if using rubber tube) Insert tube of choice and seal it with silicon, let silicon set.
Step 2: Mix warm water and sugar, (I used about 1/3cup per liter and added a few tablespoons of molasses for good measure.) until completely dissolved. Add this mix to your bottle.
Step 3: Add a packet of yeast to bottle, optimum temp of water is between 98-105 for this. too cold and it will not activate, too hot and it will kill your yeast. It should take about 5 minutes for yeast to activate and start making CO2.
Step 4: Place open end of tubing in a container of water, after pressure in the bottle starts building you should start seeing bubbles in your water dish, this is your CO2 being released.
Thats pretty much it, just place this in your grow room, mine is right by the fan to spread the CO2 around. I'm not sure how long this lasts, this type of yeast doesn't stand up to alcohol content as well as brewers yeast and will die off sooner. You can continue to use the same setup that you made, just when your yeast dies make a new sugar water mix and throw in some new yeast. Hope this helps those of you on a budget.
+rep