Hello I was making foaming bath salt for someone I made it the next day It was a little hard so I toke it out and put it in my mixer to loseing it up Next thing I know it started to foam up -this has nerver happen before because there was no water around it at all. It just started to foam up Big. I don't know what happen My husband said maybe it started to foam up because it was hot but if so how can I sell it in the hot weather?