Butylated hydroxytoluene (BHT) is a synthetic antioxidant used across the food, pharmaceutical, cosmetics, and rubber industries. In food manufacturing, it prevents oxidative rancidity in fats, oils, and products containing them.
BHT holds GRAS (Generally Recognized As Safe) status from the FDA and is permitted as a direct food additive. For kosher food producers, BHT with proper kosher certification ensures compliance without sacrificing shelf-life protection.
Multiple major BHT suppliers already offer kosher-certified grades, reflecting steady demand from food manufacturers who require this antioxidant in their kosher production lines.
Is BHT Inherently Kosher
BHT (2,6-di-tert-butyl-4-methylphenol, CAS 128-37-0) is a synthetic compound manufactured from p-cresol and isobutylene. Since these starting materials are petroleum-derived, BHT does not contain animal-derived components. However, kosher certification agencies still evaluate the manufacturing process, including catalysts, solvents, and equipment shared with other chemical products.
CAMLIN’s BHT 99% product carries kosher certification alongside claims of being animal products-free, gluten-free, non-GMO, and pareve. WESTCO BHT is similarly marketed as kosher certified. These certifications confirm that the entire production process has been reviewed and approved.
BHT and Pesach (Passover) Considerations
The Chicago Rabbinical Council (cRc) addresses a specific Passover concern with BHT. While BHT itself does not pose a Pesach problem, it is often applied to nuts and other foods in a soybean oil base. Since soybean oil is classified as kitnios (legume-derived), products containing BHT applied in soybean oil cannot be recommended for Passover use without specific Pesach certification.
This distinction is important for food manufacturers producing year-round kosher products that must also meet Passover standards. Switching to a BHT formulation applied in a non-kitnios carrier oil resolves this issue for Pesach production runs.
Food-Grade BHT Specifications
Food-grade BHT meeting FCC standards typically has a minimum assay of 99.0%, a melting point above 69.0 degrees Celsius, and strict limits on heavy metals (lead below 10 ppm, arsenic below 1 ppm). Moisture content must remain below 0.1%, and ash content below 0.005%. WESTCO BHT also specifies a maximum APHA color value of 50 and free phenol content below 0.02%.
Xtendra BHT from Univar Solutions is available in FCC Grade with both kosher and halal certification, packaged in 55-pound bags. BHT appears as a white to colorless crystalline powder and remains stable under normal dry storage conditions below 77 degrees Fahrenheit, though it may yellow slightly over extended periods without affecting activity.
Applications Requiring Kosher BHT
BHT retards oxidation in animal fats, vegetable oils, mineral oils, and products containing these materials. In kosher food production, it protects snack foods, cereals, baked goods, and processed meats from going rancid. BHT works synergistically with BHA (butylated hydroxyanisole), and the two are frequently combined for enhanced antioxidant performance.
Beyond direct food use, BHT is added to food packaging materials that come in contact with food products. The FDA permits this application, and kosher certification covers BHT used in both direct food addition and food-contact packaging within certified production facilities.
Kosher Butylated Hydroxytoluene Supplier
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