Here is a recipe I found, making it in a mason jar. I do not get credit for it, Jessica posted the article on http://www.deliciousobsessions.com. I am sure this would be easy to duplicate and force carbonated. Looks like a lot of salt though. She is fermenting a lot of food in her articles. Hmmm. Beer food?
Based on Sally Fallon’s recipe in Nourishing Traditions, pg. 587
6 organic oranges, juiced (see this post for an awesome little juicer)
1 tsp. sea salt
1/4 cup whey
1/2 tsp. orange extract
1 1/2 cups filtered water
Juice the oranges (this will yield approx. 2 cups) and pour the juice in a quart mason jar. Add the sea salt, whey, orange extract, and water. Cover and shake well. Leave the jar at room temperature for 8-10 days and then transfer to cold storage.
I checked mine after day 5 and it smelled like orange juice. I tasted mine after day 10 and it didn’t have the banana flavor that I was expecting, but it was still pleasant — a little salty and sour, but rather refreshing. I’d most likely drink this with a meal or after a workout. I think as a post-workout drink, it would be great. The sea salt would help rehydrate you and it would quench your thirst. I will definitely make this again.