WHAT IS GELATIN BLOOM STRENGTH?
The bloom strength of gelatin refers to its firmness or softness once it is bloomed. The bloom strength eventually determines the texture of the recipe you are using it for.
Bloom strengths are typically measured on a scale of 30 to 325, and gelatin is often referred to as having a low bloom (50-125), medium bloom (125-225) or high bloom (225-325). Most gelatins sold in grocery stores do not have the bloom strength listed, but you can typically assume that they are of a medium bloom.