longer keep drinks hot or cold effectively.
Always check the manufacturer’s care instructions.
## 13. Vacuum-Sealed Containers
The same warning applies to some vacuum-insulated bottles, food jars, and thermoses.
Dishwasher heat can damage:
* seals
* insulation
* coatings
* printed decoration
If the product does not specifically state that it is dishwasher-safe, hand washing is usually safer.
## 14. Certain Plastic Containers
Not every plastic container is suitable for dishwasher temperatures.
Some plastics can:
* warp
* melt
* become misshapen
* lose their lids’ fit
Only wash plastics marked dishwasher-safe.
When appropriate, placing them on the upper rack keeps them farther from some heating elements.
## 15. Soft or Thin Plastic Items
Thin plastic lids, disposable containers, and lightweight utensils are especially risky.
They may move around during the wash cycle and come into contact with heating components.
If they are not clearly designed for dishwasher use, wash them by hand.
## 16. Items With Adhesive Labels
Containers with
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