at kernel brewery in london's bermondsey, something unusual is brewing. production, is commonly used for animal feed or can even end up in landfill, but here it's getting a new lease of life. it's going to be transformed into a leather alternative known as new grain. no animals, no plastic. and now it's time for all of this to head back to arda biomaterials' lab around the corner. once these sacks arrive at the lab, it's time for the process to begin. first of all, it's emptied out into a container like this, and then an alkaline solution is added. that's stirred for about an hour to extract the protein from the grain. then the husk will be separated and the protein liquid will move along to the next stage, where some natural ingredients will be added. this will be stirred for another couple of hours, and at this point protein strings start to develop, and that means that it's ready to be poured into the trays. now, this tray here has got a pretty smooth finish, so that will create something that looks like a lot of natural leathers. if you want something