Effervescent granules is a combination of Citric acid and Sodium bi-carbonate, converting them into granules gives a delayed and long lasting sourness, better flavor impact. Various other acids like Malic acid, Citric acid, Tartaric acid, Fumeric acid and combinations of acids can be encapsulated. Taste masked Control release actives like Sodium Bicarbonate 40% or 50% - for good taste and prolonged pH above 7.0 in the mouth to avoid tooth decay problems.