holds at end of firing
I keep reading about holding the final temp at the end of firing, but really do not understand how the length of time is chosen. would like to start adding some small increments of time and see what might change. any suggestions? i am thinking start with 5 minutes and more later. i do sometimes have a few pinholes--but i also notice that some glazes work best in the bottom of the kiln (a bit cooler?) and some in the top half. and of course, i do work with different clays--all stoneware, c
I'd tried extended bisque fire hold (~1500°F) for red, dark brown and black clays I was trying out (a few years ago), where the idea was to thoroughly "burn out" the stuff that will burn out*. The hold did seem to help with the black clay, however, the main problem I was having with the red clay, fizzy bubbling, was most likely associated with too much heatwork.
I'd set up a powered kiln vent at about the same time.
Any road, my observation (notations were helpful here) was that rando
