100% Natural. Naturally steam peeled. No artificial preservatives or ingredients. Proudly Grown: At Hunt's we steam peel our tomatoes with simple hot water. That means no chemicals, like lye (Lye peeling is generally recognized as safe by the FDA and has no adverse effects on the healthfulness of tomatoes), are ever used to peel our tomatoes. Our tomatoes are vine ripened and picked at the peak of ripeness because we know great tasting meals start with great ingredients. Cook confidently!