You should all be weary of your salt and brands don't matter I've had customers return every type of salt for all sorys of reasons and even once salt had no salt measured with a refract... it had nothing so prob a bucket of chemicals , sure sucks to be on the end of that I use to think then it happened so often that I just assume salt QC is crap and take each bucket with caution
most of us are very lucky but I'll say that bad salt is not uncommon at all