Most of us consider anyone with a dishwasher extremely lucky. 

Many people seek out apartments and houses with dishwashers already installed. The ease and convenience of loading and pushing “on” is far better than scrubbing and soaking, but some kinds of metals and glassware are much too delicate for a power wash.

The high temperature and harsh detergent in the dishwasher can cause specific types of these glassware, pots, and pans to ruin and fade. The dishwasher has a similar effect on other kinds of utensils, flatware, and silverware. For some kitchen tools, it's best to dig out the rubber gloves and get scrubbing.

Cast iron pans are one of the best kitchen investments out there, but after a good sear of meat, they can use a good cleaning. These finicky pans, however, have no place in the dishwasher — especially if you break the bank buying a fancy Dutch oven.

Before you load the dishwasher and press power, make sure that you don’t have any of those or other specialty items included. After you’ve invested the money in these tools, it’s best to care for them correctly. Always check with the manufacturer and read the instruction manuals on any kitchen tool or utensil that you buy. 

In the meantime, this list is a good resource for deciding what to leave out.