The time it takes to frost a mug depends on the method you're using. If you're using glass etching cream, which is one of the most common techniques, the process itself is quite fast. Here's a breakdown of the timing: Using Etching Cream: Application Time: 1-2 minutes to apply the cream. Wait Time: Most etching creams need to sit on the glass for about 1 to 5 minutes to properly etch the surface. Always check the manufacturer’s instructions, as the required time may vary by brand. Rinsing and Drying: Rinsing off the cream takes a few minutes, and drying the mug can take about 15-20 minutes, depending on your environment. Total Time: 20-30 minutes from start to finish, including drying. If you're using other methods like frosted spray paint, drying times will be longer—typically around 24 hours for the paint to fully cure.