Edith Bowman and Colin Murray visit the Stranraer Oyster Festival, as celebrations mark the start of the native oyster season. They sail into Loch Ryan to Scotland’s largest oyster bed to discover why they’re so special. Chef Julie Lin discovers bargains in the World Food aisles, and gets the lowdown on low fat, semi-skimmed and full fat milk. Farmer Jim Smith gets stuck into some sticky sweets. Show less