What Is Gelatin?
Gelatin is a colorless, flavorless, transparent gelling agent made from collagen in animal connective tissue, usually from cattle or pigs. It is available as powder or thin sheets (gelatin sheets); as liquids cool, it gives them a jelly-like, wobbly texture.
It dissolves in warm liquid and sets into a gel as it cools. Since it comes from animals, its source matters to people following vegetarian or vegan diets and to those with halal or kosher preferences; agar-agar is a plant-based alternative.
Nutritional Values of Gelatin
Gelatin consists mainly of protein (collagen), and powdered gelatin provides approximately 335 kcal per 100 g; however, because recipes use very small amounts, its calorie contribution per meal is low. It contains virtually no fat or sugar; values are approximate.
How Should Gelatin Be Used?
Powdered gelatin is usually bloomed in some cold water and then dissolved in warm liquid; gelatin sheets are softened in cold water and squeezed before use. Do not boil it (high heat weakens its gelling power). Check the label for the source if it matters to your dietary preferences.
This information is general; gelatin is a food (gelling agent), not a medical treatment.
How to Choose Gelatin
Good gelatin is dry, colorless to pale, odorless, and within its freshness date. Choose powder or sheets as needed; check the label for its source (cattle or pig) and halal or kosher status. Product exposed to moisture may not gel well.
- It should be dry, pale, and odorless
- The source (cattle or pig) should be listed on the label
- It should be within its freshness date
How to Store Gelatin
Store gelatin, whether powdered or in sheets, in a sealed container in a cool, dry place; moisture can cause clumping and reduce its gelling power. It keeps for a long time when stored properly.
Using Gelatin in the Kitchen
Gelatin is used mostly to set jellies, cheesecake, mousse, pastry creams, milk desserts, and some confections. Bloom and dissolve it before adding it to liquid, then chill the mixture to let it gel.
What Is the Difference Between Gelatin and Agar-Agar?
Gelatin is animal-derived (collagen); agar-agar is a plant-based gelling agent obtained from seaweed. Agar sets more firmly, remains solid at room temperature, and is suitable for vegetarians and vegans.
Frequently Asked Questions
Is gelatin vegetarian?
No; gelatin is animal-derived. Vegetarians and vegans should choose the plant-based alternative agar-agar.
Why does gelatin fail to set with some fruits?
Some enzymes in raw fruits such as pineapple, kiwi, and papaya break down gelatin’s protein and prevent it from setting; if these fruits are cooked first (which inactivates the enzymes), gelatin can set.
Can gelatin be boiled?
No; high heat and boiling weaken its gelling power. Dissolve gelatin while the liquid is warm and use it without boiling.