Using innovative carbon-capture technology, potato peelings leftover from making crisps will be transformed into low-carbon fertiliser and returned to farms where potatoes for Walkers crisps are grown across the UK.
Following a promising trial of the fertiliser, which was applied to potato seedbeds this year, Walkers is planning to install CCm’s specialist equipment at its Leicester factory next year to begin wider production in preparation for its 2022 crop. Once supplied at scale, the fertiliser is expected to reduce Walkers’ potato-based carbon emissions by 70%.
The technology is designed to connect to the factory’s anaerobic digestor, which uses food waste to generate nearly 75% of the electricity used at the plant. The newly installed equipment will use the by-product waste from the anaerobic digestion process to create the fertiliser.