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3 years, 3 months ago about How to Make Root Beer

Why does root beer need to brew for a few days when you make it yourself at home?

The recipe includes yeast, is sealed air-tight and left to sit for a few days. Does that mean it's fermenting in the bottle? If so, how does the final product end up non-alcoholic?
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tracebooks | 3 years, 3 months ago
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Yes, it's fermenting, but it's not the same fermentation as alcohol. It's a lactic acid ferment, which has a much lower alcohol content.

"The ancient Greeks understood that important chemical changes took place during this type of fermentation. Their name for this change was "alchemy." Like the fermentation of dairy products, preservation of vegetables and fruits by the process of lacto-fermentation has numerous advantages beyond those of simple preservation. The proliferation of lactobacilli in fermented vegetables enhances their digestibility and increases vitamin levels. These beneficial organisms produce numerous helpful enzymes as well as antibiotic and anticarcinogenic substances. Their main by-product, lactic acid, not only keeps vegetables and fruits in a state of perfect preservation but also promotes the growth of healthy flora throughout the intestine. Other alchemical by-products include hydrogen peroxide and small amounts of benzoic acid."

Many traditionally-fermented, low alcohol "soft" drinks were made with fruits and grains.

http://www.westonaprice.org/images/food_realthing4.jpg
source(s):
http://www.westonaprice.org/foodfeatures/lacto.html

http://www.westonaprice.org/foodfeatures/Realthing.html

And the book Nourishing Traditions, which has a whole chapter on traditionally lacto-fermented drinks

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cyrusrua | 3 years, 3 months ago Report

As accurate as the source on lactic acid fermenting is, that's not actually why you're doing it in root beer. It's solely for the bubbles in a modern soft drink brew.

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tracebooks | 3 years, 3 months ago Report

That's not why *I* do it. There is a large movement of people who are moving back to traditionally-raised and prepared foodways for the nutritional benefits. I've quoted three of their sources above.

Bubbles are nice, though. :-)

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cyrusrua | 3 years, 3 months ago
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That level of fermentation is not enough to create alcohol, but don't forget the other thing that yeast puts out: CO2. You're doing it to carbonate it.

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