The company also makes sure to use proper temperatures to avoid microplastics getting out and polluting nature:“Well, making asphalt requires heat—usually around 180°C. We make sure that all the plastic we use melts at a temperature lower than this—around 120°C—so it homogenises properly without creating microplastics. It’s for this reason that we can’t use all plastic waste but we can use most things, including black plastic, which is difficult to recycle.” MacRebur reported that it doesn’t use recycled or new plastic.