Aldi and Biofilter partnered in 2020 and the retailer now collects used cooking oil at 100 stores in Hungary.
Hungarian households generate 25,000 tonnes of used cooking oil a year, of which only around 500 tonnes of oil is collected.
Biofilter has 4,500 partners across the country including supermarket chains, hotels, gas stations and fast-food restaurants. Biofilter collected almost 5,600 tonnes of used cooking last year.