I make ballistic gel often as I work with lots of sharp tools (knives, axes, machetes, etc.) and I like to test them. When I make mine I still use the 1 cup of water to 1 oz of powder ratio, but I put the pot in the fridge when it is all mixed together and heated. Once this has solidified, I put the pot back on the stove and melt it again. Once this second melting is done, I then pour it into my mold (sprayed with non stick already). This then goes in the fridge until it is ready to use. Once you’re done using it, you can rinse it with cold water (so it doesn’t melt) and then remelt, and remold until next time. This second heat (in my opinion) produces a more realistic representation of flesh in that it holds together better and is less like jello.