Joe M.-
1These instructions are to make a single 5 Gallon (19L) Corny-keg batch of osMate
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2Boil 2.5 Gallons (9.5 Liters) of Water
Put 2.5 Gallons (9.5 Liters) of water in a large pot and cover. Allow to come to a boil.
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3Steep Tea
Take water off the heat. Steep the mate tea leaves in a strainer bag. Allow to steep for 7-10 mins.
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4Remove Tea Bag from Water
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5Stir in Brown Sugar
Stir the brown sugar into the pot of hot tea
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6Mix 1-1 with 2.5 gallons (9.5 liters) of cold water
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7Refrigerate and get as cold as possible to improve carbonation.
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8Carbonate
Force carbonate at 30-50 psi (200-350 kPa) while shaking keg vigorously. Allow to rest for an hour or more while maintaining pressure. Repeat these steps until shaking no longer causes large inrush of co2. Vent keg slowly and repressurize at serving or bottling pressure.
osMate: An Open Source Mate Soda
Mate flavored sodas, like the well known Club Mate, are hard to come by in the US. We thought that needed to change.
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Interesting, I would have thought there was a fermentation step to achieve carbonation. Then again I know nothing about mate or brewing in general.
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In this case I achieve the carbonation by force carbonating the keg with co2 afterwards. You could probably achieve the same effect by adding yeast and allowing to ferment, much as you would with an old school root beer or ginger ale, but it is harder to get that to behave predictably.
Are you sure? yes | no