This is 1.3 kg of ash from a wood-burning stove. It will be shipped via Yu-Packet Post as two packages of 650g each. The main wood used is Kunu and Nara oak from Kagawa Prefecture, along with other miscellaneous hardwoods. Coniferous trees were not used for kindling. The ash has been sieved twice, once with a household strainer and then with a sieve, resulting in a very fine texture. Note: Please be aware that extremely small pieces of charcoal may still be mixed in. We also have 10 kg bags (3300 yen) and 1.3 kg of even purer ash (1250 yen) available. Please comment if you are interested.