It is generally a good idea to run new dishes through the dishwasher before using them for the first time. There are a few reasons why this is recommended:
Manufacturing residue: New dishes, especially those made of glass or ceramics, may have residue or dust from the manufacturing process. Running them through the dishwasher helps to remove any potential contaminants and ensures that they are clean and ready for use.
Packaging materials: New dishes often come packaged with various materials like labels, stickers, or protective films. These materials may leave behind adhesive residue or other substances that can be better cleaned off in a dishwasher.
Hygiene concerns: Even though dishes may appear clean when purchased, it's difficult to guarantee that they were handled and stored in a completely sanitary environment. Dishwashers use hot water and detergent to thoroughly clean and sanitize dishes, which helps to eliminate any potential bacteria or germs that may be present.
Peace of mind: Running new dishes through the dishwasher gives you the assurance that they are truly clean and free from any contaminants before you use them for eating or serving food.
While running new dishes through the dishwasher is a recommended practice, it's always a good idea to check the manufacturer's instructions or recommendations for specific care instructions or restrictions. Some dishes may have special coatings or finishes that require handwashing or specific cleaning methods.