Agar Agar, also known as kanten, Japanese gelatin, or vegetable gelatin is a vegan gelling agent derived from seaweed (red algae). This is an excellent gelling agent for jams, jellies, puddings, and other desserts. Powdered Agar can be substituted for gelatin in a 1:1 ratio (1 teaspoon gelatin is equivalent to 1 teaspoon agar powder). Recipes may vary, so adjust accordingly. The gel strength for Agar Agar Powder ranges from 500 – 725 gcm.