5. Anything with self-adhesive labels
We’ve all tried to remove a burnt-on sticker from a plate after washing it in the dishwasher – it’s a nightmare.
Under the influence of heat and water, labels disintegrate, leaving a stubborn, sticky residue on your plate and in your dishwasher. Worse still, paper fragments and melted glue can clog dishwasher filters, drastically reducing cleaning efficiency. You’ll spend more time scraping off residue than you save by using the dishwasher.
How to care for them: Always remove all labels and stickers before applying them. To loosen the adhesive on stubborn labels, soak them in warm, soapy water, then carefully remove any remaining adhesive with a razor blade or scraper.
6. Thermal mugs and thermoses
Thermal mugs are great for keeping drinks at the perfect temperature, but washing them in the dishwasher can damage their mechanisms.
Intense heat can damage the vacuum seal between the double walls, reducing the cup’s ability to retain temperature. Additionally, plastic lids and rubber seals can warp or crack, leading to leaks, and harsh cleaners can leave a residual chemical taste or odor inside the container.
Here’s how to care for them: Hand wash the container and lid with warm, soapy water, using a bottle brush to reach deep into the interior. Air dry completely without the lid to prevent mold. Always check the manufacturer’s instructions, but hand washing is usually the safest option.
7. Copper vessels
