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    How to Load a Dishwasher

    Doing it right helps your dishes come out squeaky clean every time

    detail of person loading dishwasher, putting mug in top drawer Photo: iStock

    It’s probably one of the most hot-button issues in any household with a dishwasher: how to load the dishwasher and whether your way is the “correct” way. That’s because even if you’ve been using a dishwasher your whole life, you might still harbor doubts about whether you’re positioning your dishes for maximum cleaning.

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    Here at Consumer Reports, we take dishwasher loading pretty seriously. For our performance tests, we load each dishwasher with 10 place settings of white ceramic dishes with baked-on food, then run it on the normal cycle (or its equivalent). When the cycle is complete, we use a photo-imaging machine to determine precisely how clean each dish is.

    Dishwashers that make our list of top picks deliver sparkling results every time. But even the best of the bunch won’t get the job done if they’re loaded improperly. So here is our advice on how to load your dishwasher as well as common mistakes to avoid. If you need help choosing the best dishwasher for your kitchen, you can check out our dishwasher buying guide. Or consult our ratings to see which models are the most high-performing based on our tests.

    How to Load Your Dishwasher

    Check your owner’s manual for special loading instructions, but the following tips should help most dishwashers deliver optimum results. Most older dishwashers have only a standard upper rack and lower rack, but many newer ones come with a third rack on top for flatware and small items.

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    Upper Rack
    Cups, glasses, and small bowls should be placed in the top rack. Dishwasher-safe plastics also belong on the top rack, away from any heating element, which can cause damage.

    Lower Rack
    Plates, serving bowls, and other large items belong on the bottom rack. So do platters, dishwasher-safe cutting boards, and other oversized pieces, which should be placed toward the sides and back so that the spray arm has the flexibility to move around freely. Place items with baked-on food face down and toward the lower spray arm. Aluminum and stainless steel can usually go in the dishwasher, but brass, bronze, wood, and china with gold leaf should all be hand-washed to avoid discoloration or damage. Also keep in mind that dishwasher-safe pots and pans can go on the bottom rack, but don’t run these in the same load with fragile china. Do not wash nonstick pans in the dishwasher unless they are labeled as dishwasher-safe by the manufacturer.

    Third Rack
    Many new dishwashers offer a shallow third rack located near the top of the appliance to provide some extra loading space. Third racks can handle flatware, baking utensils (like spatulas and ladles), and other items with awkward shapes that might have a hard time fitting elsewhere, says Gerrod Moore, integrated brand manager at Maytag Kitchen. If your third rack is roomier, you can also fit in mugs and bowls.

    Cutlery
    Forks and spoons should be placed in the basket with handles facing down. Knife handles go up so that you don’t need to grab a sharp blade to remove them. Mix spoons, forks, and knives to keep them from nesting. For hygiene reasons, eating utensils should be separated from one another so that water and detergent can reach all surfaces, says Dirk Sappok, director of category management of kitchen appliances for the North American region of Miele.

    Unloading
    Empty the bottom rack first. Otherwise, water that collects on the concave surfaces of mugs and glasses in the top rack will spill onto the plates, pots, and dishes below.

    Common Dishwasher Loading Mistakes

    One of the biggest mistakes people make when using their dishwasher is prerinsing their dishes. Prerinsing isn’t necessary with modern dishwashers because they have sensors that adjust the wash cycle based on how dirty the dishes are. Rinsing can also negatively affect the machine’s performance because it removes the buildup on the dishes that detergent enzymes “cling to” to do their job, says Miele’s Sappok.

    However, you should scrape off any large chunks of remaining food debris, bones, and shells from your dishes and throw them in the garbage before you load them into the dishwasher. If you don’t, the debris will cover the tub and reduce the flow of water into your dishwasher’s fine filter, which in turn will affect the appliance’s wash performance, says Marty Olsen, lab manager of quality engineering at LG Electronics.

    Overfilling your dishwasher is also a common mistake. If you load your plates or bowls too closely together or pile items on top of one another, the wash water will likely not be able to reach all the surfaces of your dishes, Olsen says.

    And make sure when you’re loading items into the dishwasher, they are placed at an angle and aren’t blocking any spray arms, Moore says. Otherwise, that would prevent water from effectively reaching and cleaning your dishes.

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    Illustration: Chris Philpot

    Perry Santanachote

    Perry Santanachote

    As a multimedia content creator at Consumer Reports, Perry Santanachote covered a range of trends—from parasite cleanses to pickleball paddles. Perry was also a main producer of our Outside the Labs content, evaluating products in her tiny Manhattan apartment.