Funny you should ask! We just ran our first 30 gal of glycern through our new shop built stainless steel still. We recovered 37% of our initial input of methanol,not bad for home built.We now have solid blocks of dark brown to black semi-refined glycerin.Our next project is to add more lye,water and heat.Presto! Soap and liquid hand cleaner! Now I have to find some soap moulds,it never ends. Any help?