If ceramic cup is particularly easy to scale with tea and coffee?
This is the characteristic of the ceramics, but quality is not so easy to touch on, but also on the easy to clean. Every time drink remember use wash dish towel and if more dirt, clean with toothpaste. Buy a bit better cup (certainly must be expensive), good workmanship, glazed smooth, general is easy to clean; When cleaning, do not use steel wire ball, can destroy glaze.
Not necessarily, depending on the quality of ceramic, high quality of not easy to keep dirt.
Not the glass quality problems, but all of the ceramic cup dirt that are left behind and is not a problem because the ceramic firing again after due to soil sediment produce cracks will retain vinegar, or other acid wash the line that will not have what problem
