Unwaxed lemons aren't untreated lemons. We're often looking for unwaxed lemons if we're making a cake, popping a slice in a drink, or wanting to using the peel or zest for cooking. But while they might not have a wax coating, a quick look at a supermarket label reveals a list of fungicides, commonly used to prolong shelf life, and stop your lemons going mouldy. Imazalil, thiabendazole and pyrimethanil are all examples of this - and there's research that links all three to hormone disruption, and

Sweet and juicy, Meyer lemons are prized by chefs and loved by home cooks. They're plumper and less acidic than regular lemons, with thinner peels and a more floral scent. This recipe uses the fruit in both the pound cake and glaze for a double dose of bright flavor: bit.ly/3UaWu7n | Martha Stewart