Trethowan’s Dairy is a purveyor of traditional caerphilly cheese produced by the Trethowan family at Gorwydd Farm, just outside the village of Llanddewi Brefi in Ceredigion, west Wales. The cheese is made with unpasteurised cow’s milk and animal rennet, using original hand-turned presses and mould. It is matured for two months at closely monitored temperature and humidity levels. During this process, each cheese is carefully turned every day. The result is a subtle, well-rounded caerphilly with a fresh, lemony flavour.