Problem: high quality roasting of a small amount of food can be made stable in home and small-scale stores, and new demand related to roasting is aroused.Solution: the outer vessel 14 is provided with an outer space 12 for accommodating the roasting object x and a convective space in which heat flows between the peripheral surface 12a and the bottom surface 12b of the inner vessel 12. The inner vessel 12 has a plurality of through holes 21 penetrating in the thickness direction, and is constituted by a net having a concavity 22 for producing a contact resistance between the roving product X and the roasting material x, and can be attached to and detached from the outer vessel 14.An opening 43 for removing the bottom is formed on the bottom surface of the outer vessel 14, and a plurality of detachable plural kinds of bottom plate members 45 are provided in the opening 43.Diagram【課題】少量の食品の高品質な焙煎が家庭や小規模店舗において安定して行えるようにして、焙煎に関わる新たな需要を喚起する。【解決手段】被焙煎物Xを収容する内容器12と、内容器12の周面12aと底面12bとの間に熱が対流する対流空間を隔てて備えられる外容器14を備える。内容器12は、厚み方向に貫通する複数の貫通穴21を有するとともに、被焙煎物Xとの間で接触抵抗を生じさせる凹凸22を有する網体で構成し、外容器14に対して着脱可能とする。また、外容器14の底面に、底を抜く開口部43を形成して、開口部43に特性の異なる着脱可能な複数種類の底板部材45を備える。【選択図】図1
