For future reference, the efferdent and coffee worked the best. Both made a huge improvement. So if you run into the problem with something not quite as strong they may work for you.
I have a box of cleaning tablets from Sigg. They look like alka selzer and work about the same. It's for cleaning out the metal Sigg water bottles. I've used it on my mini after breaking it down. Sounds like the same as efferdent.
Good to know about the coffee though