Made with whole fruit. Orange, Grapefruit & Lemon. Gluten free. Suitable for gluten free & vegetarian diets. Using traditional open copper pans, the highest quality soft fruit and our authentic methods, we ensure rich fruit flavors in every batch and that special home-made taste you expect from Mackays. Since 1938. Made the authentic way in cooper pans. No added colors or flavors. Does not contains high fructose corn syrup. mackays.com. Facebook. Facebook/mackays.jams. Scan with smartphone. Made in Scotland.