The best way to decide is to do a side-by-side tasting. Use the same BrewNova matcha, same amount (about 1 teaspoon), and same water quality. For the hot version, whisk with 2 ounces of water at 175°F, then top with hot water or milk. For the iced version, whisk with 2 ounces of cold water, then add ice and cold milk or water.

Taste them without sweetener first. Notice the texture: hot should feel velvety, almost broth-like; iced should feel crisp and light. Then add a touch of sweetener if you like, and see which one you reach for again. Do this on a day when you have time to pay attention. Your palate will tell you more than any guide.