A British startup has resurrected a centuries-old fermentation technique to transform supermarket discards into high-end ingredients. Sources confirm that BioVault, a firm based in Bristol, is now producing protein-rich miso from stale bread and umami pastes from bruised fruit. The process, known as koji fermentation, uses the mould Aspergillus oryzae to break down waste into savoury, nutritious products.
Documents obtained by this desk show that the company has signed contracts with three major UK supermarket chains to collect their organic waste. The move comes as the government faces mounting pressure to tackle the 9.5 million tonnes of food waste generated annually.
BioVault's founder, Dr. Alice Marwick, claims the method can extend the shelf life of waste products indefinitely while creating a new revenue stream. 'We are turning a liability into an asset,' she told us.
But not everyone is impressed. Critics point out that the process requires careful quality control to avoid contamination. Still, the potential is staggering.
If scaled, this technique could divert thousands of tonnes from landfills and cut methane emissions. The company is already in talks with European retailers. One thing is clear: in the race to turn trash into treasure, this British innovation is leading the pack.
