Originally Posted by Sirvinya /img/forum/go_quote.gif If you keep your powder mmu in a cool, dry place and don't add water then it should last quite a few years. Throw it out if it smells bad or changes colour. so far in your experience did you ever have a spoiled mmu? im beginning to believe that there is none.... but even during my college days where we use chemicals in our organic chemisty,,, there is still contamination and moisting after a while.
how about pressed and liquid mmu do you have any idea?