The BLANCO ClassicBox sink, in premium quality 18/10 stainless steel, comes complete with a 17-litre capacity BlancoBio-Box bin.  Scoop the remnants of fruit and vegetables from the food board into the CLASSICBOX, to fall directly into the BIOBOX bin below, helping to build up the compost heap. For sorting other recyclable household waste, there is the option to upgrade to a three bin BLANCOSELECT ECON 60/3,   which will include a 33 litre bin, increasing the overall capacity to 50-litre.