Today is the first load of bisque aimed at the fall firing of the wood kiln. About 28 ware boards worth of pots, I really tried to get as much packed in as possible, to maximize the gas used.
I don’t pack glaze firings very tight because I want the calories getting around to everything, but for bisque I’m not too picky.
700C – 750C is my usual peak temp, I like the ware to be very absorbent for glazing, however the resulting ware is quite fragile and needs careful handling.
This time around there are quite a few slab plates of various shapes and sizes, which I am a bit worried will crack. These are stacked on spacers, then more spacers between stacked plates, because I don’t want to take any chances with cracking. The rest of everything is pretty safe, so packed and stacked without too much thought other than to get as much in as possible.
This is the top level about one third finished. Pinched sake bottles at the back are for a sushi restaurant order, and are smaller than I usually make (about 200ml volume). The standard measure for sake is in ‘go'(合) which is 180ml.
Here it is all packed and ready to roll into the kiln. You can see slab plates, tea cups, small thrown plates, a couple of ice buckets, and some mugs at the rear top.
All ready to go. I had to remove the roof thermocouple to get the car in. Replaced it after battening down the hatches…
Most of the shelves now freed up from loading. Now to fill them up again!
I’ve just come off of a week of pot showing and selling, sharing space with some very fine young (and older) potters who are making crazy good work. This last week was Karatsu Yakimon Matsuri, which ran concurrently with Arita Touki-Ichi. This was the third year for the Karatsu event, and attendance jumped to 100,000, from 70,000 last year.
The theme was tableware, and there were many collaborative exhibits between potters and chefs. What a great time it was to see all of the wonderful work. Gave me a LOT of new ideas and inspiration, as well as some great feedback from customers and restaurant owners.
I had been scheduled to go to the Mungyeong Teabowl Festival, however the ferry accident resulted in most or all of the spring holiday’s festivals being cancelled or postponed.
Chosen Karatsu vase with wisteria.Chosen Karatsu bucket. (Oke, 桶)Kuro Karatsu and Muji Karatsu guinomi. The kuro sold on the last day.Chosen Karatsu bucket. (Oke, 桶)Ao Karatsu TowerChosen Karatsu TeabowlPaddled Jar with gold repairAo Karatsu platter, 50cm
This post is a photo record with comments, in order to organize and retain my thoughts and observations about the 8th firing of the wood kiln. I always think I’ll remember until the next firing, but never do. So, if you get into this, beware there are a LOT of pictures, some of which may seem redundant. There are examples of most of the pots from the firing, minus teabowls and some others which are not photographed yet.
The 8th firing was a charm overall, with many good pots, some bad, and some that will get refired. Kiln was fired in oxidation primarily. We stoked once every 30 minutes for 2 1/2 days, then once every 20 minutes the last half day.
– Front was nicely melted, nice even gradient to the rear of first chamber, E-Karatsu was about ideal. Cone 12 at hottest front down to cone 6 at coolest rear.
– Front chamber behaves like anagama. No significant temp gradient from front to back of each setting. Next firing, will pack kiln by eliminating the space between settings, leaving horizontal space for flame travel. One long setting from front to back of first chamber.
– Ame yu better at low temps. Load rear to mid chamber.
– Ao yu needs more heat, mid to front chamber.
– Large platters go midway to back of front chamber. Too much ash up front.
– Firebox wares are very nice in a three day firing. Great place for Shino, under cover to avoid ash in pots.
– Rear chamber fires fast when preheated for 3 days. Jumped from 1044C to 1344C in four stokes, a little over an hour. Care must be taken to spend more time soaking at high temp, because rear chamber high temp wares not quite mature (surface changes only), clay not melted well. Spend 3 or 4 hours firing off rear chamber, slowly, to get inside the pots.
– Rear chamber fires very evenly front to back, and top to bottom. Pick a temp to fire at and load accordingly. Don’t expect a significant gradient.
Hiura
Himae
Front of rear setting, front chamber
rear chamber, very hot
The whole bunch of it
rear chamber, top
firebox
firebox
firebox
front chamber, rear top of front setting
mid setting of front chamber
almost not enough heat for Ao-Yu
mid setting of front chamber
mid setting of front chamber
mid setting of front chamber
front of rear setting of front chamber,
clear over ame-yu works
mid setting of front chamber
mid setting of front chamber
mid setting of front chamber, more glaze shoulder level and higher
Very front, bottom
Very front, bottom
Very front, bottom
rear of front setting, bottom
rear of front setting, bottom
mid of front setting,
mid of front setting,
front of front setting,
mid of front setting,
front of front setting,
mid of front setting,
mid of front setting,
Tameike w/clear,
try taishu feldspar glaze next time
Tameike w/clear,
try taishu feldspar glaze next time
Tameike w/clear,
try taishu feldspar glaze next time
Hanjiki w/clear,
try taishu feldspar glaze next time
Tameike w/clear,
try taishu feldspar glaze next time
Hanjiki w/clear,
try taishu feldspar glaze next time
Ao-yu reacts strangely with Oshima white, too matte
Ao Yu on hanjiki,
Madara on Karatsu Daishizen
rear side
fire side
rear chamber, under fired. Soak at high temp necessary!
rear chamber, under fired. Soak at high temp necessary!
This last weekend we had the show in Karatsu. It was a 3 day weekend, so we did Sat, Sun, Mon. Well, if you are thinking about having a show on a 3 day weekend, let me give you a little advice: don’t. Everyone goes somewhere else. The first two days were absolutely empty, and it was only the during the last day that I was able to make some good sales. Thanks to guests from Osaka, Kyoto, and Chiba. I guess they were using the 3 day weekend to get out of their respective areas as well.
Well, lesson learned. Overall, it was still a very enjoyable experience, with lots of time to sit and chat with friends over tea. The highlight of the show was without a doubt, the shiboridashi teapot with the river crab knob. It is a pure silver crab holding a ruby in his right claw.
Chosen Karatsu Hoso Mizusashi (water jar) w/ lacquer lid. This guy sold.
Below are some pictures from the latest firing (of the gas kiln). There were a few nice pots in the firing, enough to fill in the gaps with the show next week. Lost most of the chawan and guinomi, but got a couple of each that I like.
Chosen Garatsu (the runny white over brown) constantly reminds me that I need more practice. Just when I think I’ve got it down, it shows me just how much I don’t know.
Abalone shaped bowl with feet
interior detail
Teabowl/Chawan, Chosengaratsu glaze, pinched from a ball on the kickwheel
rear view
bottom detail, firing on shells gives the red flashing on the foot.
Chosengaratsu teabowl/Chawan. Also pinched from a ball. This one came out the best in terms of glaze. I think I paid more attention because I was worried about the lack of vertical surface for the glaze to move on.
Madaragaratsu guinomi (small cup) with ame glaze accents. Pinched from a ball on the kickwheel.
Chosengaratsu guinomi
Yunomi/tea cup with ame glaze exterior and madara glaze interior.
Madaragaratsu yunomi/tea cup
Chosengaratsu yunomi. These as a group came out the best. None to hammer. Good runs, no warping.