4 ms·
Fermentation produces huge amounts of CO2 and some breweries collect it and sell it as a byproduct
by yread 8y ago
Fermentation produces huge amounts of CO2 and some breweries collect it and sell it as a byproduct
- dogma1138 8y agoLarge scale breweries are CO2 consumers not producers small scale production with natural carboninzation can potentially produce CO2 but the majority of it is produced form lime stone and other minerals afaik. I’m not aware of any breweries actually collecting it for sale the amounts produced will be so minute and the collection process will be so expensive that it can’t make financial sense.
- AnonymousPlanet 8y agoGerman regulations ("Reinheitsgebot") explicitly forbid adding CO2. So pretty much every major brewery in Germany does not add CO2 into their product. They do use CO2 and other gasses to pressurize casks, however.
- Symbiote 8y agoSome may be like Faxe in Denmark, which uses the CO₂ gained from brewing beer to make soft drinks. (As I read somewhere a week or two ago.)
- dogma1138 8y agoReinheitsgebot isn’t mandatory and covers only Bavaria afaik if you don’t follow those rules you can’t use the trademark on the label but you can sell beer the vast majority of beer in Germany is not carbonated trough secondary fermentation.
- yread 8y agoIt's done regularly in Europe https://www.automationworld.com/beer-brewing-and-carbon-dioxide-recycling https://www.automationworld.com/beer-brewing-and-carbon-diox... https://books.google.nl/books?id=0os_gIvG_ccC&pg=PA349&lpg=PA349&dq=breweries+collecting+co2&source=bl&ots=W4uGe2Z_ur&sig=VfhsGiPaQsXh7oL19wkFp_u3nxY&hl=en&sa=X&ved=0ahUKEwi4tPKSg5PcAhWNyqQKHc0ODpQQ6AEIggEwDg#v=onepage&q=breweries%20collecting%20co2&f=false https://books.google.nl/books?id=0os_gIvG_ccC&pg=PA349&lpg=P... https://foodandbeverage.pentair.com/en/products/haffmans-co2-recovery https://foodandbeverage.pentair.com/en/products/haffmans-co2...
- dogma1138 8y agoReading a bit into this and it looks like they are doing it because of emissions regulation, overall EU breweries are one of the largest consumers of CO2 in the food and drink industry.
- bluGill 8y agoSome fuel ethanol breweries collect and sale their CO2 byproducts. The article mentions them (but notes they are not a significant source). IIRC the small fuel ethanol plants in the US collect and sell their CO2, but the large ones do not - this is a factor of age, the small plants came first, but they time anyone was building big plants the CO2 market in the US didn't have room/need for any more suppliers.
- dogma1138 8y agoEthanol makes more sense since they produce at a much larger scale but beer breweries don’t.