PROBLEM TO BE SOLVED: To provide a production method of a flavor oil containing Japanese pepper, giving numbness of a tongue due to the Japanese pepper as well as flavor and pungent taste of the Japanese pepper.SOLUTION: A production method of a flavor oil containing Japanese pepper includes: a filling step filling ground Japanese pepper and vegetable oil into a product container a heating step heating the filled mixture of the ground Japanese pepper and the vegetable oil at 75-95°C an inverting step putting a cap on the product container filled with a prescribed amount of all contents and inverting it and a preservation step preserving more than one day.COPYRIGHT: (C)2015,JPO&INPIT【課題】山椒の風味、辛味だけでなく山椒による舌のしびれ感を与える山椒香味油の製造方法を提供すること。【解決手段】山椒の粉砕物及び植物油を製品容器に充填する充填工程と、充填された山椒の粉砕物と植物油との混合物を75~95℃で加熱する加熱工程、全内容物が規定量充填された製品容器に蓋をし、倒立させる倒立工程、1日以上保存する保存工程を包含することを特徴とする山椒香味油の製造方法。【選択図】なし