Henning1966 wrote:Ok guys I have a question seen guys on the greenboard talking about it off and on. So what they are proposing is hooking up the fermenter to a cornny keg and trapping the naturally occuring co2. My question is this only possible with carboys and conicals? And do you think there is a way to do this without a check valve on the hose to keep it from going back into the fermenter.
W/o using a pump to compress the CO2, you will not be able to trap all the CO2 that occurs during a fermentaton in a corny keg. And even then, what are you going to do with the CO2? The only way of saving on CO2 is using natural carbonation, where you either prime the beer when racking to a corny or you rack green beer into a corny and let the remainder of the fermentation generate the CO2 for the be. This is best done under pressure control so you can aim for a particular carbonation level. Such a systen is known as a "Spundungsapparat" in German brewing. If you connect multiple cornies on such a system you may even be able to force carbonate using the CO2 generated by another beer.
Carboys should never be used for pressure fermentation since they are not designed to withstand pressure.
Kai
