Here are a few remedies to get it looking good again. The better the quality, the easier it will be to clean…
*Wipe with kitchen paper moistened with cooking oil, then wash in hot soapy water.
* Wipe over with lemon juice, which is a natural bleaching agent, leave a few minutes then wash off.
* Mix bicarbonate of soda with a little water to make a paste, and smear on to the stain. Leave an hour then wash in hot soapy water.