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Experimentation with Research for Cider idea
I'm hoping to get some advice on an idea that I am going to try. Just to give you my background, I've never made a home brew, although I have assisted my brother-in-law with putting some ale in bottles. My interest lies in planted aquariums, which need CO2 "injected" into the tank for the plants to grow to their fullest potential. Right now I have a bread yeast/suger/water contraption that I wouldn't use for human consumption. The following link to is to someone who has used a DIY CO2 in the form of home-brewed cider, but it doesn't have many specifics.
I'm thinking that my set-up would be a gallon sized glass jug, with a hole drilled into the lid. A peice of aquarium airline tubing would vent the CO2 to the aquarium. After about a month, or the yeast production died down, I'd add some additional sugar, put a solid lid on it, and age it to get some sparkle on it. I'd also start up the next gallon for the aquarium.
I guess that my main concern is that there wouldn't be a secure lid on the brewing container. It would vent down into the aquarium. My other questions involve how much room would I have to leave at the top to ensure that the fish weren't imbibing, how much yeast to put (recipe ideas), how important is it to have liquid yeast. I am also very open to input, since I really have no experience in this.
Thanks
Alexander
I'd start with a cup of sugar per gallon of water. Although at least a little grape juice in the mix would probably help. The yeast will need the nutrients it provides. You could easily keep pouring off of the sediment, leaving most of the goo in the bottom of the bottle and pouring more sweetened water on top.
You should leave at least 25% of your container available for foaming and such to keep your fish sober.
Your yeast probably won't work but 3-6 days at making you CO2 depending on how cool it is.
This is a really interesting experiment. I hope it works for you.
Dominick
I was under the impression you were just in it for the aquatic plants.
The only thing that would change regardless of your sugar/yeast combination would be the flavor of the liquid afterward. If you like hard cider, use apple juice. Then you get the benefit of both.
CO2 output wouldn't change unless you went to something with a higher alcohol content, like wine. Even at that, you would only get 6-8 days of high volume CO2 production. The other problem is that you won't really get much to dissolve into the water at atmospheric pressure just bubbling through the aquarium.
By all means if you're going to ferment, make it something you might like to taste. Even if you turn your nose in disgust and pour it down the drain, you life's experience will be richer. Goodness knows I've poured a lot of stuff in the drain, but at least I can say I made it once. Be Zen about it. Just enjoy the experience.
Andrew
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