The author made a study of development for a new type peeler that could pare potatoes, taros and chestnuts by utilizing adiabatic expansion of super heated steam, and produced one by way of trial. The results of test on the peeler were as follows: 1) Potatoes and taros are easily pared by the present apparatus, and are pared cleanly and smoothly. It is needed around 3.0kg/cm^2 steam pressure to pare potatoes and around 4kg/cm^2 steam pressure to pare taros. 2) Chestnuts can be pared perfectly above 5kg/cm^2 steam pressure by this apparatus. It is preferable to steep chestnuts in water about one day before paring. From these results, it is cleared that the present paring model can be widely accepted as a new practical peeler.