Food-safe
A food-safe ceramic piece is one that has been manufactured under specific conditions that guarantee its safety for contact with food and beverages. This implies that the materials used throughout the manufacturing process, from the base clay to the final glaze, must be non-toxic and comply with food safety regulations. A crucial aspect is that the ceramics do not release hazardous substances when they come into contact with food or liquids, which could compromise a person's health.
It is especially important that the glazes and engobes used do not contain hazardous elements such as lead, cadmium or any other compounds that may leach out during the use of the piece. Lead, for example, can be released by heat from food or contact with acidic liquids, such as fruit juices, and has harmful effects on health. Similarly, cadmium is a heavy metal that can be toxic when ingested in large quantities.
To ensure that a ceramic piece is food-safe, it is necessary that the glazes and materials are approved by international regulations, such as the FDA in the United States or European food safety regulations. Food-grade ceramics must also be stain resistant, easy to clean and maintain their integrity over time, without their properties altering with continued use.Interesting Fact
In many ancient cultures, ceramics used for food did not always meet today's safety standards, as some glazes contained lead, which over time has been identified as a health risk. Today, the regulation of food glazes has improved considerably.Helpful Tip
If you are a ceramist and want to produce food-safe pieces, be sure to buy glazes that are certified food safe and always test your pieces for spalling or cracking that could harbor bacteria or leach chemicals.
