If you have doubts about washing a particular item, check with the manufacturer to see if it is dishwasher safe.
Material
Aluminum
Disposable Aluminum
Bottles and Cans
Cast Iron
China/Stoneware
Crystal
Gold
Glass
Hollow-Handle Knives
Pewter, Brass, Bronze, and
Copper
Disposable Plastics
Plastics
Stainless Steel
Sterling Silver or Silver Plate
Tin
Wooden Ware
18
WASHING SPECIAL ITEMS
Dishwasher Safe?
Yes
No
No
No
Yes
Yes
No
Yes
No
No
No
Yes
Yes
Yes
No
No
Comments
High water temperature and detergents can affect finish of anodized
aluminum.
Do not wash disposable aluminum pans in the dishwasher. These might
shift during washing and transfer black marks to dishes and other items.
Wash bottles and cans by hand. Labels attached with glue can loosen
and clog the wash system and reduce washing performance.
Seasoning will be removed and then cast iron will rust.
Always check manufacturer's recommendations before washing.
Antique, hand-painted, or over-the-glaze patterns may fade. Gold leaf
can discolor or fade.
Always check manufacturer's recommendations before washing. Some
types of leaded crystal can etch with repeated washing.
Gold-colored flatware will discolor.
Milk glass material yellows with repeated dishwasher washing.
Handles of some knives are attached to the blade with adhesives which
can loosen if washed in the dishwasher.
High water temperatures and detergent can discolor or pit the finish.
Cannot withstand high water temperatures and detergents.
Always check manufacturer's recommendations before washing. Plastic
items may vary in their ability to withstand high temperatures and
detergents. It is recommended that lightweight items such as lids and
butter dishes be placed in the upper rack only. Sturdy items such as
coolers and high-chair trays may be placed in the lower rack. When
washing plastic items in the lower rack, it is recommended not to use the
Heated Dry option.
Run a rinse cycle if not washing immediately. Prolonged contact with
food containing salt, vinegar, milk products, or fruit juice can damage
finish.
Run a rinse cycle if not washing immediately. Prolonged contact with
food containing salt, acid, or sulfide (eggs, mayonnaise, and seafood)
can damage finish.
Not recommended.
Wash by hand. Always check manufacturer's instructions before
washing. Untreated wood can warp, crack, or lose its finish.