If the bottom of the plate or dish is not visibly dirty or contaminated, there is generally no strict requirement to wash it as vigorously as the top or inside of the dish. However, there are a few reasons why it might still be a good practice to give the bottom a quick rinse or wipe:
Hygiene: Even though the bottom of the plate may not have come into direct contact with food, it is still exposed to surfaces, such as the table or counter, which may have germs or dirt. Giving it a quick rinse can help ensure overall cleanliness and reduce the risk of cross-contamination.
Residue and Stains: Sometimes, small bits of food or sauce may accidentally splatter onto the bottom of the plate during the meal. While it may not be visibly dirty, these residues can dry and become more challenging to clean later if left unattended.
Presentation: If you want to maintain a clean and presentable appearance for your dishes, giving the bottom a quick rinse or wipe can contribute to a more professional look.
Habit: Making it a habit to clean all parts of the plate, including the bottom, can help maintain a consistent and thorough dishwashing routine.
While washing the bottom of the plate is generally a good practice, it doesn't need the same level of attention as the top and inside of the dish. A quick rinse under running water or a wipe with a clean cloth or sponge is usually sufficient to address any potential concerns. Additionally, when using a dishwasher, the cleaning process should cover the entire surface of the dish, including the bottom.