Ferment-in-Space Starter Kit

Fermented foods carry live cultures and bring variety, flavour and a sense of normal life to a crew eating stored food. The Ferment-in-Space Starter Kit packages dried yogurt and kefir cultures with a small insulated incubator so a crew can make fresh fermented food on the journey.

Cultures are stored dry and stable, then reactivated when needed. That moves the shelf-life problem from the finished food, which spoils, to the starter, which does not.

This is a concept-stage product. The key open questions are safe, repeatable fermentation in microgravity and in a small, low-power incubator.

Fermentation is one of the oldest ways to preserve and transform food. Yogurt and kefir cultures turn milk into a different food with its own flavour, texture and live microbes. Dried starter cultures can be stored for long periods and revived when rehydrated, which moves the storage problem from the finished food to the starter.

The difficulty is control. In microgravity, liquids and gas behave differently, temperature must be held steady with little power, and contamination must be avoided in a sealed habitat. The concept therefore starts from defined strains, sealed vessels and a very simple procedure, and asks whether crews can make fresh fermented food safely and repeatably.