I'd use it up this season. It won't last a year, let alone 2 years after that treatment. It's probably still good for now.Hey all! Been a long time watcher of this group ever since I had to shut down my last grow, but I am very impressed with the info (and pics!) I see here daily! I was curious about something, my partner kept the nutrients in a hot shed for about 4 days and the cat drench popped the lid off and leaked the cat drench everywhere (did only leak into the provided plastic bag, I bought the XL kit). My question is would the cat drench still be good/ok to use or will I need a new batch of the stuff to get great results?