Note: 1) where I live, Eden Foods’ Agar Agar Sea Vegetable Flakes are available at Whole Foods
The instructions say to use 1 tablespoon of Agar Agar (pronunciation) to 1 cup of water. This made a firm mold that did not wobble. 1/2 tablespoon of Agar Agar to 1 cup of water made a wobbly mold. 3 tablespoons of Agar Agar to 1 cup of water made a firmer mold. Unlike gelatin, Agar Agar always appears to be moist and an Agar Agar mold can be damaged by touching the mold. Knox gelatin molds that use large proportions of gelatin are dry and can be touched without being damaged. Agar Agar molds may be easier to move with spatulas than molds made with Knox gelatin.
In my experiments, Agar Agar molds can only be made in metal molds. The molds must be heated in boiling water to release the gelatin from the mold. When the edges where the set Agar Agar meets the metal mold are very wet, the Agar Agar will release from the mold. This required more than 1 minute. Ceramic and glass molds did not work well. The molds had to be heated for so long that the shape of the Agar Agar mold was destroyed.
Agar Agar molds seem to be less translucent. The colors were very bright. I used 4 or 8 drops of food coloring to 1 cup of a mixture of Agar Agar and water. A ratio of 1/2 tablespoon Agar Agar to 1 cup of water using 4 drops of food coloring made an Agar Agar mold that was comparable to a delicate Knox gelatin mold. I am excited to use Agar Agar. Click this link to observe something exotic made with Agar Agar.
I will determine if Agar Agar can be used with whipping cream someday. The instructions may suggest that Agar Agar cannot be used with bouillon made with meat. An article from WikiHow states that Agar Agar is similar to Knox gelatin since Agar Agar cannot be used with fresh pineapple puree and some other fruits because they are too acidic or contain enzymes that prohibit Agar Agar or gelatin from setting.
Eden Foods’ Agar Agar Sea Vegetable Flakes are kosher. Some brands of Agar Agar appear to be made by chemical manufacturers. I do not have the experience to associate industrially packaged things with edible food. Since Agar Agar is not currently a common grocery item in America, I was excited to observe the Organized Kashrut hechsher (pronunciation). I do not follow Jewish laws, but knowing that something is protected by the Law must be better than using something that does not appear to be made for the average American consumer.