You're sipping your brew, and by the time you're halfway through, it's lukewarm. That's not a brewing failure—it's a heat retention issue. If your mug or carafe isn't preheated, it'll steal heat from your coffee.

Preheat your mug with hot water before you brew. If you're using a glass carafe, swirl it with hot water first. And for spring mornings, a thick ceramic mug will keep your coffee warmer longer than a thin glass one.