A beneficial and straightforward technique to give your glasses that icy and frosty look
When doing food or special effect photography. Spray the glass or bottle with a very fine spray of spritz. Spritz is the term that is used for a solution that is 50% water and 50% glycerin. Once applied, the water droplets remain stable as the glycerin increases the water droplets surface tension allowing the water droplets to stay on the surface of the glass or bottle and impedes it from running down. This creates the most beautiful and natural-looking condensation effect. A condensation effect that will last for hours.