Fervere. The Art of Fermentation, Perfected
Research
The project began by examining the growing interest in gut health, sustainability, and fermentation. Interviews with chefs and fermentation experts, including those at Silo (the UK’s first zero-waste restaurant), revealed how intimidating fermentation can be for beginners due to its reliance on intuition, inconsistent outcomes, and lack of accessible tools. Surveys confirmed that many would ferment at home if given clearer guidance and reassurance.
Concept Development
After exploring multiple ideas, including large fermentation systems and drawer-based modules. Feedback led to a more compact, user-friendly design. The concept evolved into Fervere: a smart lid that fits onto standard Kilner jars and guides users through lacto-fermentation using digital sensors. Key variables such as pH, temperature, and weight are monitored, while an integrated screen and app offer visual updates and learning tools.
Prototyping & Testing
Through rapid prototyping, user testing, and electronics development, Fervere was built with:
A 316 stainless steel spring to submerge ingredients,
A retractable food-safe pH sensor,
A vacuum pump for air removal,
Digital scales for salt ratio accuracy,
A touchscreen interface and companion app to educate and reassure users.
Testing with hobbyist fermenters validated the concept’s ease of use, intuitive interface, and educational value, while feedback refined everything from sensor position to ergonomics.
Final Product
The final prototype is a fully manufacturable, injection-moulded device designed around kitchen safety, hygiene, and daily usability. It simplifies fermentation, promotes food sustainability, and builds user confidence. Fervere doesn’t replace traditional knowledge, it enhances it with accessible data and design. The outcome is a premium, repairable product that encourages more people to enjoy the health and environmental benefits of fermentation at home.