I got my first 3 wonderful vases "hanaire" out of a noborigama firing fired by the Tokyo Nippon Tougei Club.




On this Hanaire the front got a lot of fly ash, natural ash glaze. The effects of the firing on a pot are called "Yohen": wood-fire effects. Shizenyu is the broad term that refers to many surfaces that result from the natural deposit of ash during firing. Teri shizenyu refers to glossy natural ash glaze like on this vase. Continued ash buildup leads to running drips "tamadare".






This Hanaire shows spots resembling sesame seeds of various sizes "gomabai".











Yohen refers to the beauty resulting from wood-fire. Literally, it translates as "changed by fire", or more poetically, "blessed by the kiln".

You can find all the information you want in this wonderful book written by Masakazu Kusakabe and Marc Lancet.