How to clean silicone bakeware?

[Pennies]

All my silicone stuff is about 4 years old now and it looks horrible and seems greasy. I have cleaned them by hand and put them through the dishwasher cycle but with no improvement.

Any ideas on how to get them looking less rank before I bin them altogether and go back metal?

Have you tried warm water and bio washing powder?

I'd replace silicon with silicon rather than metal tho!

Try the washing machine! Works for me...

mrspremise what a great idea!