Glass is generally considered healthier than porcelain when it comes to kitchenware and dining utensils. This is primarily due to the lower risk of lead leaching and the ease of cleaning and sanitizing glass products.

Glass is non-porous, meaning it does not absorb liquids or bacteria, making it easier to clean and sanitize. This reduces the risk of foodborne illnesses. Additionally, glass is free of lead and other heavy metals, which are commonly found in porcelain and can leach into food over time, especially when exposed to high temperatures. According to the U.S. Food and Drug Administration (FDA), lead is a toxic substance that can cause serious health issues, including brain damage and kidney problems.

In contrast, porcelain is made from clay, feldspar, and quartz, which can contain trace amounts of lead. While modern porcelain is often glazed with a lead-free glaze, older or cheaper porcelain products may still contain lead. The presence of lead in porcelain can be a concern, especially when the porcelain is used in the microwave or when it is exposed to high temperatures, as the lead can leach into food.

A study published in the Journal of Environmental Health found that porcelain dishes can leach lead into food at levels that exceed the FDA's allowable limits. This is particularly concerning for children, who are more susceptible to the harmful effects of lead exposure.

In conclusion, glass is a healthier choice for kitchenware and dining utensils due to its non-porous nature, lack of lead, and ease of cleaning. While porcelain can be a beautiful and durable option, it is important to be aware of the potential health risks associated with lead leaching.