Kombucha Makers Unite; Where to ask and be answered in Recipe Sharing Posted October 31, 2016 On 10/28/2016 at 4:21 PM, ladyshanny said: @Cathy125 - when you use juice, how long are you leaving it in second fermentation for? I only use juice and mine is always very fizzy, sometimes excessively so. Hi LadyShanny, I've left my 2nd ferment as long as a week with no real fizz... It must be the strength of my actual tea. I'm using a 2 .5 gallon CB that I drain 1 gallon from every 5-7 days and cap off with a gallon of fresh tea. It tastes to me like it's ready and tests out a 2.3 on my meter but, perhaps if I left it a bit longer I will have better results.