po-ru.com: Here’s the recipe for the syrup (yields about 500ml):
50g yerba mate (with stems/con palos) 500ml water (boiled and allowed to cool slightly) 250g unbleached cane sugar 5ml lemon juice To prepare the beverage, mix 1 part syrup with 5 parts carbonated water.
noisebridge.net: Sudo pop is a yerba mate ginger beer.
* Taragui Mate con Palo * 5 Gallon Carboy (secondary fermentation) * 5 Gallon of Pot * Bottle siphon, bottle capper, caps * 5 Gallon (Primary fermentation or mixing) bucket * airlocks, and miscellaneous brewing supplies Directions: 1:1:1:2:10 ratio rosamonde yerba mate: limes & sweet lemons:ground ginger:panela & white sugar:H20 In a small pot, boil ginger and sugar with some water. Boil remaining H20 in 5 gallon pot. Cool the big pot to 85C. Add Mate,steep for 5-7 minutes. Mix back the ginger-sugar mixture to the mate to taste. strain. strain. strain. Pour mixture into carboys to cool, chill, then carbonate.
Make magazine (Dave-Mate):
1L water 50mL (3-1/2 Tbsp or 20g) yerba matÃ© tea leaves 15mL agave syrup 15mL simple syrup 1.25g (1/4 tsp.) molasses 1.25g (1/4 tsp.) guarana 0.6125g (1/8 tsp.) citric acid Drop of orange bitters. Directions: Heat water to 75C/167F, then steep the yerba maté in the water for 5 minutes. Strain the resulting tea into another container. You may need to filter multiple times to remove all the sediment. Add the sweeteners, citric acid, bitters, and guarana.
3 gallons water 85g Chai mate tea (from Teavana) 2.5 cups ‘raw’ cane sugar 1.5g caffeine powder (handle with care!) CO2 (to taste) Terse instructions: Sterilize all equipment. Bring water to just under a boil, add tea and sugar, steep for 5-7 minutes. Cool, add caffeine powder, stir well, then transfer to keg. Float 15psi of CO2 over the mixture, then release the pressure valve and re-pressurize. Repeat 5 times (to purge oxygen from the keg). Let sit for 24 hours, to allow the soda to carbonate, then drop pressure to 7psi and enjoy!