Kaleena Teoh, co-founder of Coffee Project NY, prefers ceramic mugs for their texture and the ideal warmth that comes with holding a hot cup of coffee.When you compare glass, ceramic, and metal ...

“If the mug is not preheated, then the lighter it is, the better, because the mug itself is heated up by the coffee, which cools the coffee down,” Deitrick says. Photo: Getty Images Photo ...