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Depends on the beer. Some places pasteurize their beer, others don't. Typically it is not because the brewing process and the alcohol tend to kill off any bacteria that might be a problem.

Draft beer and bottle-conditioned microbrews are not pasteurized. Most of the mega brand beers (Budweiser, Miller, etc.) are pasteurized.

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14y ago

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What causes the foam in beer?

Foam on top of beer which is produced by bubbles of gas, typically carbon dioxide, rising to the surface. The elements that produce the head are wort protein, yeast and hop residue. The carbon dioxide that forms the bubbles in the head is produced during fermentation. The carbonation can occur before or after bottling the beer. If the beer continues fermenting in the bottle, then it naturally carbonates and the head is formed upon opening and/or pouring the beer. If the beer is pasteurized or filtered then the beer must be force carbonated using pressurized gas.


Are can foods pasteurized?

Yes, most canned foods are pasteurized during the canning process to kill harmful bacteria and ensure food safety and preservation. This involves heating the food to a specific temperature for a set amount of time before sealing it in the can.


How is gingerbeer made commercially?

Commercially, ginger beer is made by fermenting a mix of ginger, sugar, water, and yeast. The ginger is crushed and mixed with hot water to extract its flavor, then sugar is added before cooling. Once the mixture is cooled, yeast is added to begin fermentation, usually in large tanks. After fermentation, the ginger beer is filtered, pasteurized, and carbonated before being bottled or canned for distribution.


In flash pasteurization of beer how could you pasteurization of cap and bottles?

You cannot. This is the reason why tunnel pasteurizers have been the prevalent pasteurization technology for brewing, and why the major breweries in the Americas continue to support tunnel pasteurization. The only options you would have are to install a clean room, sanitary filler, do regular QC swabs, have your product coded by batch, and (likely) install a warmer if you are filling and packaging significant quantities. You should also consider beer waste. As the flash pasteurization loop cannot be empty with each start and stop of the system water or beer need to be recirculated. This indicates that you will either send beer to drain with each start and stop (as the unit is flooded with water to be recirculated) or you will run beer in a loop effectively pasteurizing it dozens of times and then return it into the production, which shoot holes in the flavor argument for flash pasteurization. You can find detailed information on the comparison of tunnel and flash pasteurization at www.pasteurizers.info.


Did Louis Pasteur invent anything?

yes he invent pasteurized.