We added Epsom salts to some porcelain last week and this is the pot that tests whether the clay has improved in its workability. It’s much better. Epsom salts is a flocculant, and when kaolin is mined, often deflocculants are used to make the mining process easier. And porcelain clays also contain feldspar, and feldspar contains sodium, so the Epsom salts counteract the deflocculating qualities of the sodium. Probably more than you want to know. . www.tiltonpottery.com/ #ceramic #pottery #clay