By the mid-2030s, AI agents that rewrite food-control software in Rust let neighborhood fermentation rooms run safely on local hardware instead of cloud services.
The rewrite agents translate recipes, sensor routines, and cleaning logs into compact systems that run beside each vat. Because each controller can explain why it will stop a batch, small kitchens gain access to insurance and wholesale markets without hiring a full engineering team. Regional foods multiply, and food safety becomes inspectable rather than mystical. Yet the same formal constraints favor recipes that are easy to measure, slowly squeezing out ferments whose safety depends on smell, touch, and inherited judgment.
At 5:40 a.m. in a converted garage in Jeonju, thirty-year-old Min-seo watches a jar of mustard greens cross its acidity threshold; the local controller pauses the heater, prints a plain-language explanation, and calls her father to taste the batch before breakfast.
The system makes compliance cheap, but it may turn living traditions into narrow parameter ranges. A kitchen that cannot express its wisdom as a sensor reading could be treated as unsafe even when generations of practice say otherwise.