Fermenter / Batch Fermentation

Question: Does juice contain alcohol? what is natural fermentation?

(Posted by: LockItUp on 2010-05-07 00:34:52)

On this wikipedia page: http:/ / en.wikipedia.org/ wiki/ Abv it says Fruit juice contains 0.1 % of "Naturally occurring " alcohol. What does this mean? What kind of juice? What other products that are labeled non- alcoholic have alcohol in them? This report here says: - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http:/ / www.wesleyan.edu/ weswell/ docs/ alcohol/ IPRC Factline Nonalcohol Beer.pdf according to a report published by Indiana University, a standard glass of orange juice contains between .2 % and .5 % alcohol. Six glasses of orange juice could theoretically create the same culpability in a minor as six bottles of non- alcoholic beer. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - This website says: http:/ / www.newton.dep.anl.gov/ askasci/ gen06/ gen06354.htm - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Question: Is there alcohol in orange juice? Has anyone ever tested exactly how much? Is there alcohol in other non- alcoholic foods or drinks? If so, does anyone have a list? There isn't alcohol in OJ. But all food has some bacteria in it, and even in the refrigerator these bacteria will start acting on the sugar in the OJ and using it for food. Most bacteria are fermenters. The process of fermentation takes glucose (sugar) and through a multi- step process turns itinto carbon dioxide and alcohol. The OJ will taste "bubbly " or "carbonated "and there will be alcohol present as well. There probably wouldn't be enough alcohol to make one feel its effects though. Refrigeration doesn't kill bacteria, it just slows its metabolism. If you were to leave the OJ out on the counter for a day, this process would happen a lot faster. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Posted by: freesumpin on 2010-05-07, 01:08:51

All juice contain sugars. Many juices are pasteurized that kills all bacteria and yeasts. Those that do not get pasteurized can be effected minutely by the wild yeasts that naturally occur in the air. Alcoholics that cannot drink alcohol can drink them and not feel a thing, the same with kidlets. When, say, natural unpasteurized apple juice sits out or for a long time in the fridge can get naturally 'working', very slowly turning into wine and get bubbly because of these wild yeasts. The yeasties eat the sugars, reproduce and CO2 and small amounts of alcohol are the by-products. This process will happen more quickly when out of the fridge. THAT is natural fermentation! .