Gel strength, also known as ‘bloom’ value, is a measure of the strength and stiffness of the gelatin, reflecting the average molecular weight of its constituents, and is usually between 30 and 300 bloom (< 150 is considered to be a low bloom, 150–220 a medium bloom, and 220–300 a high bloom).
What does bloom mean in gelatine?
Definition of “Blooming” Gelatin: As the gelatin absorbs the liquid, each granule becomes enlarged; this is known as “blooming.” Blooming gelatin is a step integral to ensuring the smooth texture of a finished product. It involves sprinkling the powdered gelatin into a liquid and letting it sit for 3 to 5 minutes.
What is bloom strength of hard gelatin shell?
The gelatin used in hard capsule manufacture is of a higher Bloom strength (200–250 g) than that used for soft capsules (150 g) because a more rigid film is required for the manufacturing process.