What kind of shelf life does this have? I have one of the oldschool containers of pure powdered CEE I bought from BN maybe a year ago. I used it a couple times and stopped because it tastes like unholy bitter asshole. I'm willing to try it again but I went to open it and most of it was stuck together, sort of like if you leave a container of sugar untouched for too long the sugar all gets stuck together (maybe from humidity?) So, is it still good or should I just order some more? If so where from and what kind? Is CEE still the hotness?