Comparison
Gelatin vs Agar-Agar
The short answer
Agar-agar is the plant-based swap for gelatin: vegan, halal and kosher. Gelatin melts in your mouth; agar sets firmer and holds in warm weather.| Side by side | Gelatin | Agar-Agar |
|---|---|---|
| Safety score | 88/100 Generally safe | 95/100 Generally safe |
| Source | Pig, cow or fish | Seaweed ✓ Better |
| Vegan | No | Yes ✓ Better |
| Sets at | Fridge temperature | Room temperature |
| Mouthfeel | Melts in the mouth ✓ Better | Firm, clean bite |
| Strength | 1× | About 3× ✓ Better |
Swapping one for the other
Use 1 tsp agar powder for every 3 tsp gelatin. Boil agar for 2 minutes to activate it; gelatin only needs warm liquid.
Common questions
Can I swap agar in marshmallows?
Not directly. Vegan marshmallows usually use aquafaba with carrageenan or agar.