Louis Francois Agar Agar is a plant-based gelling agent made from red algae. It creates clear, firm, brittle gels with a clean, neutral taste, making it especially useful for molded jellies, fruit layers, plated desserts, and savoury gels where structure and clarity matter.

Use

Agar must be fully boiled to activate. Once dissolved, it sets as it cools and can be remelted by reheating. It works best in water-based systems, while strong acidity or alcohol can reduce its gelling power.

Recommended Dosage

Use according to the texture and application:

• Pressurized creams, low-fat creams: 0.5–1 g/kg
• Flavoured milk drinks: 1–2 g/L
• Light creams: 2–5 g/kg
• Dairy products, sauces, soups: 5–10 g/L
• Cookies, pastries, ice cream, fish-based preparations: 5–10 g/kg
• Confectionery, dairy specialties: 10–20 g/kg
• Dietetic products: 20–40 g/kg

Applications / Practical Uses

• Clear fruit gelée layers and plated dessert elements
• Molded jellies and hot-service gels
• Vegan gelled desserts and garnishes
• Pâte de fruit and confectionery with a firm bite
• Savoury aspics, terrines, soups, and sauces
• Low-fat or dairy-free recipes where you want structure without added fat

Observations

White to cream-coloured powder with no noticeable odour or taste. It forms a firm, brittle gel after boiling and cooling, is thermoreversible, and is not ideal for freezing and thawing. Extended storage can lead to some syneresis.

Differences from Other Gelling Agents

Compared with gelatin, agar sets faster, holds at higher temperatures, and is better for warm-service or heat-stable applications. Compared with pectin or gellan in freeze-thaw systems, it is less suitable for frozen applications, but it gives a firmer, cleaner-cut gel. Compared with typical retail agar powders, Louis Francois agar is known to produce more consistent gel strength, cleaner flavour neutrality, and better clarity.

Origin

Extracted from Gracilaria red algae.