Clean dishes can sit in the dishwasher for a short period without any significant issues. However, it's generally not recommended to leave them in the dishwasher for an extended period. Here are some guidelines:
Odor and Bacteria: If clean dishes are left in the dishwasher for too long, they may develop an unpleasant odor or become a breeding ground for bacteria. Dishwashers are not airtight, and residual moisture can create a humid environment inside, which promotes bacterial growth.
Hygiene: Leaving dishes in the dishwasher for an extended period may lead to a decline in hygiene standards, especially if the dishwasher is not cleaned and maintained regularly.
Resoiling: If you leave dishes in the dishwasher for too long, food particles or liquids left on the dishes may dry and adhere more firmly, making them harder to clean later.
As a general rule, it's best to unload the dishwasher promptly once the washing cycle is complete. This allows the dishes to dry properly and prevents any potential issues related to prolonged exposure to moisture and bacteria. If you cannot unload the dishwasher immediately, consider using the dishwasher's "dry" setting or cracking the door open slightly to let some air circulate and help with the drying process.
If you have no choice but to leave the clean dishes in the dishwasher for a few hours, that should be fine. However, if you anticipate them sitting there for longer than a few hours, it's better to unload them and store them properly in the kitchen cabinets to maintain hygiene and prevent any possible issues.