Firemouth and Yohen Pots
This was fired in the Yohen chamber where charcoal is introduced. It was rubbed for 2 days (This pot was probably rubbed by me. I always tried to pick this shape when we were polishing pots.) When it came out of the Yohen chamber, the pot was dull looking because of a thin oxide coating from the heavy reduction. The polishing gives it a satiny surface. In the old days, rice straw was used to polish. Today, sandpaper, 3M green and red abrasive pads and then a cotton cloth.