What are Once-Fire glazes and how do I use them?

‘Once-fire’ is the term given to glazes applied to unfired clay rather than bisque ware. This may seem to be the ideal way to work, especially in this time of rapidly increasing power costs. It cuts out a firing and is a cheaper and faster way to make pottery. So why doesn’t everyone once-fire? The fact is that once-fire glazes are very tricky to get right. Read our Technical Information Sheet - "Once-Fire Glazes".