I mix up the glazes I use until I get what I want. Most of these glazes are purchased but some are modified. I have made many glazes in the past and still make and use some of them. I like the chemistry and I enjoy the process but it is a long dirty process and I am leaning toward finding glazes that suite me in a dry mix and occasionally premixed. This is to get rid of as much dust as possible. I had 4 months of chronic bronchitis last year with an asthma component. (COPD) It sucks!