While the polymerization process alters the chemistry, the resulting product is generally regarded as food safe once the volatile organic compounds (VOCs) have off-gassed completely. Substances that meet the FDA’s criteria for indirect food contact must not impart harmful substances to food and must be composed of Generally Recognized As Safe (GRAS) substances.
Tung Oil Food Safe Regulations: Understanding Compliance and Safety Standards
Pure tung oil meets these criteria, which is why you will find cutting boards and salad bowls crafted from this finish. Maintenance: Re-oil occasionally to maintain the water-repellent barrier without stripping the surface.
Conversely, polymerized tung oil is pure tung oil that has been subjected to heat and chemical catalysts to speed up the drying process and create a much harder, more resistant finish. Regulatory Standards and Testing For commercial producers of kitchenware and toys, compliance with regulatory standards is mandatory.
Tung Oil Food Safe Regulations: Understanding Compliance and Safety Standards
Drying Time: Allow ample time between coats (usually 24 hours) and full curing (several days) before use. Polymerized Tung Oil The primary factor determining food safety lies in the type of tung oil used.
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