Yeast preparation device and preparation method

The invention discloses a starter preparation device and method, and relates to the technical field of white spirit brewing and processing, the starter preparation device comprises a feeding assembly, a preparation mold and a workbench, the preparation mold comprises a core mold and a mold shell, the mold shell comprises a plurality of annular bodies which are arranged in an inner-outer sleeving mode, and gaps corresponding to discharging ports are formed between the adjacent annular bodies; the core mold comprises mold plates of which the number is the same as that of the annular bodies, and each mold plate is mounted on the corresponding single annular body, so that all the gaps form a molding space; through the feeding assembly, machining materials can enter different molding spaces, the core mold is driven to rotate, and therefore the machining materials form annular material blocks in the corresponding molding spaces; the preparation method is realized through the preparation device. According to the pre