From the Ashes... Success
Well, I had a chance to do a firing before the Thanksgiving weekend and grabbed it. The plan was to re-fire the wood ash glaze objects from the previous firing which had been under-fired by about 300° C. Since this time I had to reach 1263° C, it became a great opportunity to test the limits of the kiln, to see how high it could get. 10:15 - start 11:30 - 400° 1:30 - 800° 2:30 - 970° (temp increasing much slower now) 3:30 - 1120° (vent now totally open) 4:15 - 1147° 4:30 - turned off fuel and plugged up the kiln to let the temperature decrease slowly. As you can see, we maxed out at 1147° - and it took an entertaining hour to get those last 27 degrees. Since we were still a ways off from Cone 10, I figured the glaze wasn't going to work. But when I took out the pieces I found to my surprise... ...they have a delightful glossy shine to them. what a difference 300 hundred degrees makes I'm not sure why the one mixed with woo