IDS Coarse Guerande Salt 1Kg This traditional sea salt is naturally grey and guaranteed unwashed, unrefined and additive-free. IDS Coarse Guerande Salt is ideal for traditional family cooking. You can use it for cooking all your dishes: pasta, vegetables, meat and fish in a salt crust, stocks and barbecues. IDS Coarse Guerande Salt is produced by the ocean, sun and wind and is hand-harvested by salt workers, using skills and a method that are over a thousand years old. IDS Coarse Guerande Salt is 100% natural, and is simply sorted and sieved to ensure that consumers are offered consistent quality.