Onebutton exhaust design: simple and safe to operate, it easily vents excess pressure and steam to maintain an fermentation environment, so you can enjoy the process without worry. Dualtank system (1 L 2 L): accommodates diverse recipes and allows simultaneous batches, making it convenient for daily family use or when entertaining guests. Transparent viewing window: enables realtime observation of fermentation status without opening the lid, so you can track progress at a glance. Intelligent temperature control with autotimer: automatically maintains the precise fermentation temperature and stops when the set time is reached, preventing overfermentation or underfermentation and delivering reliable results. Key specifications and performance: twotank design with 1 L and 2 L capacities to support different recipes and parallel fermentation; automatic pressure release, realtime visual monitoring, and automatic temperature maintenance with timer shutoff for consistent, worry operation. Use scenarios: 1) Prepare two fermentation batches at once, such as a larger batch in the 2 L tank and a smaller test batch in the 1 L tank, for efficient daily cooking and recipe experimentation. 2) Streamline meal prep for the week by fermenting different items concurrently, reducing daily setup and waiting times. 3) Host gatherings by producing multiple fermented foods in advance, ensuring you have fresh, readytoserve options on hand. Practical considerations: designed to deliver straightforward operation, reliable performance, and visible status indicators to simplify fermentation tasks while keeping control and flexibility for a variety of recipes.