TOPSHOT - A worker holds mushrooms produced by the company Permafungi, which recycles coffee grounds to grow organic mushrooms in Brussels, on July 15, 2020. - In Brussels, a young company set up as a model of the circular economy recycles coffee grounds to grow 100% organic oyster mushrooms in the heart of the city. The adventure of "PermaFungi" began in Thailand in 2013, when a Belgian who had travelled there by bicycle discovered a farm growing mushrooms with this residue known to gardening enthusiasts for its nutritious virtues. (Photo by JOHN THYS / AFP)