Yes, gold lustre, when properly applied and fired according to manufacturer specifications, is generally considered food safe.
Understanding Gold Lustre and Food Safety
Gold lustre is a decorative finish often used on ceramic and porcelain items, giving them a metallic, gold-like appearance. Its food safety primarily depends on its composition and the proper firing process.
Key Aspects of Gold Lustre Food Safety:
- Fired Gold Lustre is Food Safe: Once gold lustre has been properly fired in a kiln, it becomes inert and durable. This allows it to be used on items that come into contact with food. In fact, gold lustre has been applied to the rims of china for hundreds of years without issue, demonstrating its long-standing safety record for dinnerware.
- Surface Glaze Characteristics: Gold lustre acts as a surface glaze. While it is food safe once fired, its nature as a surface application means it can be more prone to scratches compared to an underglaze or a fully integrated glaze. This characteristic affects its durability rather than its safety profile.
- Specific Products: Many reputable manufacturers produce gold lustre products intended for use on food-contact surfaces. For example, products like Mayco Bright gold lustre are designed with food safety in mind when properly fired.
Important Considerations for Using Lustre on Dinnerware
While gold lustre is deemed safe, there are practical considerations to ensure longevity and maintain its aesthetic appeal.
- Proper Firing: Adhering strictly to the manufacturer's recommended firing schedule (temperature and duration) is crucial. Improper firing can compromise both the durability and the food safety of the lustre.
- Durability and Scratch Resistance:
- As a surface glaze, gold lustre can be susceptible to scratching.
- Items with gold lustre should be handled with care, especially those used frequently or subjected to abrasive cleaning.
- Care and Maintenance:
- Hand washing is generally recommended over dishwashers. The harsh detergents and high temperatures in dishwashers can degrade the lustre over time, leading to fading or scratching.
- Avoid using abrasive scrubbers or harsh chemicals that could damage the delicate surface.
- Manufacturer Guidelines: Always consult the specific product's data sheet or manufacturer's instructions for detailed information on food safety, application, firing, and care recommendations. These guidelines provide the most accurate information for the particular lustre you are using.
By following proper application, firing, and care instructions, gold lustre can be safely and beautifully incorporated into food-safe ceramic items.
