concentrated coke is used to clean the coke machines.....allegedly.

It's great stuff for cleaning carbs, and cylinder heads, and pretty much anything else.

When I was at school the cherry coke was the best stuff at cleaning 1p and 2p coins. Whatever it was that was supposed to taste like cherry was even more corrosive than the normal stuff.

Takes like shite afterwards though....then again, it don't taste too good beforehand.

I'm more of a Sang Som soda man meself.