Even basic features have gotten an upgrade in newer models. Here are the basic features to review and consider.
Wash and rinse cycles: For starters, there are three basic wash cycles for most models: light, normal, and heavy for pots and pans. Advanced dishwashers can offer up to 19 cycle options in addition to the basics, like one for crystal and china, a pot scrubber, soak/scrub, heavy duty, quick clean, steam clean, a high-temperature sanitizing rinse, rinse and hold, or half-load cycles. Some models even offer high-pressure washing to blast away stuck-on food.
Dry settings: There are also dry settings, such as to dry with or without heat. Economy or air-dry settings allow you to save energy but may mean that dishes aren't exactly water-spot free.
Filters and food disposal: Models can come with self-cleaning features, filtration systems, or food disposers that allow you to put dishes in the dishwasher without rinsing them first. The filters and food disposal features remove food particles and dispose of them ideally without clogging your dishwasher's drain system.
Displays: Newer models have ditched the dials and now include digital displays to tell you how long a cycle takes and to select your washing, rinse, or drying cycles. Also, some models contain the controls inside the dishwasher on the top ledge of the drawer or door for a sleeker outside appearance. Many include child locks for the door.
Delayed start and noise insulation: Most models also have a delay-start setting so you can time when you want a cycle to begin during low-rate electricity times or after you leave the house. Because dishwashers can be one of the loudest appliances in the house, look for models that have heavy insulation to minimize noise. Each manufacturer will have a branded name for this feature but the key is to look for the decibel setting, which, for quieter models, should be around 47 to 57 decibels.
Flexible racks and tubs: To accommodate different dish sizes or large pots, models often contain dish racks that split or fold or can be removed to make more room. Cutlery trays and cup shelves are a common feature, too. Nylon is a popular material used for racks for durability and flexibility. Tubs come in plastic or stainless steel.
