How Gelatin Shapes Texture and Stability in Food
Gelatin is one of the few ingredients that can create a gel, stabilise an emulsion and improve mouthfeel all at once, which is why it appears in such a wide range of food products.
In confectionery, gelatin concentrations of just 6 to 10 percent are enough to create the chewy, elastic texture found in gummies and marshmallows.
In dairy products such as yogurt and mousse, gelatin at concentrations below 1 percent improves creaminess and prevents syneresis, the separation of liquid from a set gel.
Its unique melting point, close to human body temperature at around 35 degrees Celsius, is what gives gelatin-based desserts their signature melt-in-the-mouth sensation.
Gelatin also acts as a stabiliser in whipped and aerated products, holding air bubbles in place so mousses and marshmallows keep their structure over days of shelf life.
In beverages, small amounts of gelatin can clarify juice and wine by binding to suspended particles, a process called fining, leaving the finished drink visibly brighter and clearer.
Because it is a natural protein, gelatin also contributes to the nutritional profile of a formulation, adding protein content without introducing artificial thickeners or gums.
Matching the right Bloom strength and concentration to each recipe is what allows food manufacturers to fine-tune texture, from a soft custard to a firm, sliceable jelly.