I usually use Pottery tea cup at morning!!
Pottery tea cup is retaining hotness than Porcelain tea cup. If I can’t drink at pottery cup soon, I can keep tea hotter than to use Porcelain cup.
Pottery is made by clay and Porcelain (ex.Kaolin) is made by ceramic stone powder. Pottery includes air more than porcelain. Pottery has low thermal conductivity.
Pottery cup is less likely hotter than porcelain cup even if the tea is hot. It’s easy to drink.
Please try pottery tea cup and soup cup !!
Store - Mashiko