No worries, I have a few DIY tank crackers that are delicious - just need a glass tank for them is all. No harm vaping those, they just can't be vaped and probably shouldn't be stored in plastic is all.
My Mandarin sunrise, any of my colas (the cola I use is a cracker), my cherry limeade and, lemon drops are all tank crackers.
That's why they make cheap CE4 tanks (see Fasttech.com) - good place to put suspect juice overnight to test for that - just 1/4 tank is enough for testing, it will cloud or all out crack the tank by morning if it's going to do it at all. Just put a little in the cheap, disposable tank and set it on a saucer for the night. Not much wasted if it is a cracker and, you know not to vape it in plastic after that.