Including these top 9 essentials, the healthiest cooking utensils are made from safe materials. Stainless steel is generally the best, being less reactive, more durable, and versatile. Go for at least 304 grade to reduce the risk of leaching chemicals. Metals like copper and aluminum can react with acidic foods, so avoid mixing the two (including when fermenting). Other than that, glass or ceramic are top choices. If you do buy plastic, go for food-grade LDPE, HDPE, or PP plastic, and AVOID BPA and PVC.