To provide a sterilization method having sufficiently high sterilization capability, and executable inexpensively in a short period, which is a sterilization method unaccompanied by heating.SOLUTION: A sterilization method of a food product 1 has a freezing step 12 for freezing a mixture 3 containing a food product 1 and ethanol 2 at -10°C or lower, and a pressing step 13 for holding the frozen mixture 3 at 100-400 MPa, in which an ethanol 2 percentage content in the mixture 3 is 0.08-8 wt%.SELECTED DRAWING: Figure 1【課題】加熱を伴わない殺菌方法であって、十分に高い殺菌能力を有し、低コストかつ短期間で実施できる殺菌方法を提供する。【解決手段】食品１とエタノール２とを含む混合物３を－１０℃以下で凍結する凍結工程１２と、凍結した混合物３を１００～４００ＭＰａで保持する加圧工程１３と、を含み、混合物３中のエタノール２含有率は０．０８～８重量％であることを特徴とする食品１の殺菌方法。【選択図】図１
