I bought this package of Chinese almond agar (seaweed) gelatin. It's essentially Jell-O, and it came with these directions:
Mix contents with 4 cups of water in a saucepan. Cook and stir occasionally and bring to a boil. Remove from heat. Stir 2 cups of whole milk and mix well. Pour mixture into glasses or shallow pans and let cool. Refrigerate until set.
It's been about 2 hours and my Jell-O hasn't set. Any reasons for why this might've happened? Should I wait longer? If my Jell-O won't set, is there any way I can still salvage it?