Account for your ice
An iced latte needs space for more than the liquid ingredients. Your preferred ice quantity, cube shape and any toppings all affect the finished level. Before choosing a glass, make a note of the recipe you actually enjoy rather than treating every iced latte as the same serving.
Recipes vary. Nescafé’s Original Iced Latte uses 30ml of coffee mixture and 150ml of milk, plus ice. That example contains 180ml of measured liquid before the ice is added. It does not mean a glass with exactly that capacity will be suitable.
Try a simple rehearsal using cold water and your usual ice in a glass you already own. Fill to a comfortable serving level, leaving the room you want for stirring. This helps you decide whether to shortlist a modest everyday glass or a larger one. Repeat the check if you frequently add whipped cream or another topping.
Rehearse the serving
Pay attention to the opening as well as the volume. Think about whether your ice fits through it easily, whether your chosen spoon reaches the bottom, and whether a straw sits at a useful height. Those are practical preferences that a capacity figure alone cannot settle.
Check the instructions for the exact product. A glass described as dishwasher-safe is not automatically approved for every temperature change. The Bodum Bistro retailer care note says to add liquid before ice cubes; retain that instruction with the product rather than generalising from a different glass.
For a mixed hot-and-cold collection, confirm that each candidate is intended for both uses. Then compare its height, full width and storage needs just as you would for a hot latte glass.
Check the product instructions
Choose enough room for the drink you make most often. Buying the largest possible glass is only useful if its extra capacity also suits your cupboard, washing routine and preferred portion.