Best way to clean Cartridges

[vesh11sega4ever]

Could somebody please tell me the best way to clean game cartridges, recently found a pile of my old games some not boxed and the cartridges I notice have a little bit of mould in some spots on the bottom of the cartridge chip but no rust..

Any advice would be much appreciated as I really don't want to put them into the console and risk putting mould in my system.

Hopefully they still work =\

[lorf]

Get your hands on some Isopropryl, it evaporates within minutes and is perfect for cleaning metal. Just get a cotton bud and dab it in then wipe the contacts down, best cleaner I've ever used and I've been collecting for years, tried all sorts but nothing beats it.