No, it is not safe to use a slow cooker or any cooking utensil that contains lead. Lead is a toxic metal that can leach into the food during cooking, especially when it comes into contact with acidic or high-temperature ingredients. Ingesting even small amounts of lead over time can lead to serious health problems, particularly in children and pregnant women.
Most modern slow cookers are made of ceramic or stainless steel, which are safe materials for cooking. However, older slow cookers or those made with questionable materials might pose a risk.
If you suspect that your slow cooker contains lead or any other unsafe materials, it's essential to replace it with a new and safe one. Always choose cookware and utensils that are specifically labeled as food-safe and free from harmful substances. When in doubt, consult the manufacturer or look for certifications that ensure the cookware's safety for food preparation. Your health and well-being are worth the extra caution.