m0useanswered grow question 12 days ago manufactures who makes candy gummies use cornstarch molds and they let them dry out for a while before packaging them. they press a metal stamp into the cornstarch and it makes the holes that the candy will sit in and then dry in. Thats one set that is not talked about a lot, you need to dry your gummies! it gets the right water ratios in them or they will mold and sprinkling on sour acids or sugar on the outside will just leach that water out. its a process. They can shrink upto 50% of their size once dried.