Thanks. His parents tried it once, and got something ‘living’ on it that scared them; and they thew it out. We’ve thought that it was probably natural ;-)
We’ve been looking this week for a proper crock.
I use a wide mouth mason jar and bought some lids on Amazon. They allow the gas out and don’t let oxygen in. After the first time, it is easy. It is full of probiotics.
Save the crock after you see if you like it.