The invention provides a multi-functional fermenter for making yogurt and cheese that having a set of fermentation barrel, which includes an inner barrel. The inner barrel provides a bottom plate at the bottom, a lid on the top, filter material inside the inner barrel and compressions such as piston and flexible member between the lid and the filter material so as to place raw materials for making yogurt such as milk and bacteria (Lactic acid bacteria) into the inner barrel. Further, put an outer casing component into the inner barrel to provide heat source, which can ferment the raw materials as yogurt during heating time then compress yogurt by the above filter material and compressions in order to filtrate and remove whey and produce cheese. Accordingly, a fermenter is provided to make yogurt and cheese concurrently, which is multi-functional and practical.本發明係有關於一種可兼作優格及乳酪之發酵機,主要係設有一可進行優格、乳酪製作的發酵桶組;其中該發酵桶組中設有一內桶,該內桶底部設有一底盤,而頂部設有一內桶蓋,並於桶內設有過濾用材料,且於內桶蓋與濾材之間設有抵壓功能的活塞、彈性件等,能於內桶中置入有製作優格的原料如牛乳及菌(乳酸菌),進一步再置入於一提供熱源的外機殼組件,該外機殼組件於一加熱溫度時間下將發酵桶組內原料醱酵成為優格,並藉由上方濾材及抵壓功能的組件擠壓優格,過濾並去除乳清而完成乳酪製作;藉此,能在一發酵機內製作優格並兼作乳酪,達成一機多功能的實用功效。(2)‧‧‧發酵桶組(21)‧‧‧內桶(22)‧‧‧底盤(23)‧‧‧活塞座(231)‧‧‧通孔(232)‧‧‧限位柱(233)‧‧‧彈性卡勾(24)‧‧‧止密環(25)‧‧‧濾罩(251)‧‧‧透孔(252)‧‧‧濾材(26)‧‧‧彈性件(27)‧‧‧內桶蓋(271)‧‧‧鏤空孔(272)‧‧‧環凸台(273)‧‧‧壁槽(274)‧‧‧卡槽(28)‧‧‧旋轉蓋(281)‧‧‧圓環(282)‧‧‧抵推片(283)‧‧‧限位外環(284)‧‧‧凸部
