It is thought that large stable furnished stoves made of stones or clay were used in the palace or large temples to put large iron-made cauldrons and cookware on them, though no such things were excavated before. Former sites of kitchen of general households were not found either.

Many of pots, dishes, cups and other kitchenware are made from coils of clay, called hajiki or sueki. They were produced at the provinces of Yamato, Kawachi, Owari, Bizen, Totoumi, etc., and brought from those places to the capital.

Richer people used iron- or copper-made cauldrons or cookware. Glassware was used among high classed noblemen.

(See Wikipedia for details - hajiki, sueki)

An ice house, or himuro, was used to store ice throughout the year. It was built within a cave in a cooler area such as a place deep inside mountains. During the winter, ice was brought into the house thatched with straw so that the ice would remain frozen for many months and it could be used as a source of ice during summer months.