I learned the hardway about sorbate. It was back in about 1990 and my first batch of mead. I bottled about 25 bottles and stored them away in the basement rack. about 6 months later I came home to the smell of alcohol in the house. about 10 of these had blown there corks and emptied on the floor. I took one up to the kitchen gently tried to open it with a cork screw. Well about 1/2 way out it blew the cork and a stream of mead hit the ceiling.