Blodyn Aur is a cold-pressed rapeseed oil producer at Derwydd Farm, Llanfihangel Glyn Myfyr near Corwen in Denbighshire, growing, pressing and bottling its oil entirely on Welsh soil. The oil is extra virgin, cold-pressed and unrefined, with a light, nutty character suited to cooking, roasting and dressings. The range also includes a Welsh rapeseed mayonnaise and flavoured dressings. The business was established in 2010 by a trio of local farmers.