Agar agar in vegan cooking: choosing quantities and texture

Agar agar is a gelling agent obtained from red algae. In plant-based recipes it can give structure to juices, plant-based drinks and desserts. Replacing animal gelatin, however, requires adjustments to the method and the intended texture.

A different way of setting

Agar agar dissolves when a water-based liquid is heated and forms a gel as it cools. It produces a firmer, less elastic structure than animal gelatin. Both can form thermoreversible gels, but their temperatures and behaviour in the mouth differ.

A gram-for-gram substitution therefore rarely produces the same dessert. The complete recipe also matters: milk, cream, honey and other animal ingredients need separate consideration when making a vegan preparation.

Weigh, test and record

Use scales suitable for small quantities. The weight of the base, powder type, acidity and other solids affect the result. Start with a specific recipe or the product instructions, then make a small sample before increasing production.

Disperse the powder thoroughly and dissolve it completely with heat. Pour into moulds before setting and leave to cool without moving the preparation. Avoid unnecessarily prolonged cooking of highly acidic bases.

When to choose it

Agar is useful for sliceable jellies, well-defined inserts and thin films. For a very elastic or creamy texture, consider other gelling agents rather than automatically increasing the dose.

Compare the results in the guide to agar agar and animal gelatin and check the most common agar agar mistakes before your next trial.