Mix a solution of 10% citric acid. I use 2 drops per 5ml for for normal mixes, and 3 or 4 drops per ml for fruit mixes.
On a side note to all you out there mixing TART fruit concoctions...you can experiment with SMALL amounts of diluted citric acid to add tartness to your mixes!
I highly suggest using TFA Tart and Sweet as your base agent like as in the Star Burst recipe....
Jus' say'in.....
