Absolutely. I can use other mugs but they have to have the required features,, must be white, I cannot drink tea from say a green mug. Must be thin porcelain, I hate chunky mugs unless for chocolate. The handle should be wide, the shape cannot be top heavy, it has to be equal all the way up. It has to be narrow, I hate fat mugs.. It has to be scrupulously clean and no chips anyway no matter how small. Yep I am a wee bit picky about my mug