What is the most effectual course to verbs a chalice table? I enjoy the "magic" cloth etc but still? looks a tad grubby. The sun comes directly on it so looks...

looks a tad grubby. The sun comes directly on it so looks bad for abundant angles. Thanks.

Answers: My daughter recommended using a vinegar solution to clean cup. It works! Also I'd suggest you make sure the river you use is as hot as you can stand it to get rid of grimey grades.