Egypt’s “green wall” company Schaduf is bringing hydroponic farms directly to supermarkets, Reuters reported earlier this month. Shoppers can open the fridge and pluck the lettuce themselves, buying lettuce reportedly grown with 90% less water compared to traditional farms. It also reduces carbon emissions from produce transportation. The produce has a longer shelf life, allowing another head of lettuce to grow in its place. Schaduf is planning on expanding into more supermarkets throughout the country.

How does it work? The closed-cycle method grows produce in refrigerators outfitted with pumping tanks for irrigation water. LED lights replace sunlight and the produce is sold without any packaging to avoid single-use plastic.