Problem to be solved: to provide a method of producing a fermentative liquid containing a colloidal particle and a short chain fatty acid having no particle size exceeding 50 nm and having an acidic degree of pH 3 to 4 or less.Solution: a fermentation apparatus comprising a plurality of fermentation containers 10 that have been subjected to temperature control in each of a multi-stage fermentation process；Soft water w as starterThe former B, consisting of seven fermentative bacteria, registered in the npmd, containing the sporangous clostridia, which is administered in a low temperature condition, is registered with npmdDried soy bean paste in Thailand 1CuckooThree kinds of fermentation media produced by fermentation of the second medium m2 of the mixed medium consisting of turmeric and the third medium m3 of honey raw material were produced separatelyAndA method of manufacturing the fermentation liquid by a multi-stage fermentation process.Diagram【課題】粒径が５０ｎｍを越えないコロイド粒子および短鎖脂肪酸を含有する、酸性度がｐＨ３以上４以下の発酵液を製造する方法の提供。【解決手段】多段階の発酵工程の各々に温度管理された複数組の発酵容器１０を含む発酵装置を備え、スターターとなる軟水Ｗと、低温状態で管理される有胞子性クロストリジウム属菌を含むＮＰＭＤに寄託登録された受託番号ＮＩＴＥｐ―０２９４５～ＮＩＴＥｐ―０２９５１の７種の発酵菌で構成された元菌液ｂと、天然素材の乾燥大豆の第１培地ｍ１と乾燥植物のタイソウ、クコシ、ウコンからなる混合培地の第２培地ｍ２とハチミツ原料の第３培地ｍ３とを別々に発酵し生成した３種の発酵培地と、を用い、多段階の発酵工程によって前記発酵液を製造する方法。【選択図】図１
