CURING YOUR WINE GLASSES
There are two types of curing methods that can be used with enamel,
BAKING  &  AIR DRY  METHOD
Bake Method (recommended): Place glasses in a COOL oven.  Set oven
temperature to 350 degrees F and bake for 30 minutes.  Glass must heat
gradually with the oven to avoid breakage. Do not place glass in a hot
oven.
After 30 minutes, turn the oven off.  Let glass cool completely
in oven. Do not use for 72 hours.
Air Dry Method:
Air dry for 21 days before use.