8 Things You Absolutely Should Not Put in a Dishwasher **(And Why)
The reality is that high water pressure knocks knives against other items in the rack, dulling the blade’s edge incredibly fast. Furthermore, the intense heat and harsh detergents can cause wooden handles to crack, warp, or loosen from the blade. Finally, reaching blindly into a dishwasher full of hidden, sharp blades is a genuine safety hazard.
How to care for them: Hand wash knives and wooden utensils immediately after use with warm, soapy water. Dry them right away with a towel to prevent rust (especially for carbon steel), and store them safely in a knife block or on a magnetic strip. Occasionally rub wooden handles with food-safe mineral oil to maintain their finish. Even if a knife claims to be “dishwasher safe,” hand washing will keep it razor-sharp for much longer.
Kitchen cleaning supplies
2. Delicate Crystal and Fine China
2. Delicate Crystal and Fine China
If you own exquisite crystal stemware or fine china, it deserves the royal treatment.
Dishwasher safe guide
The high-pressure water jets can cause fragile glass to chip or shatter against other dishes. Harsh detergents and intense heat can permanently etch the surface of crystal, leaving it looking cloudy no matter how much you polish it. Additionally, any delicate gold or silver trim will likely fade, peel, or wash away entirely.
How to care for them: Line a plastic basin with a towel to prevent slipping, and wash the pieces gently with mild dish soap and lukewarm water. Rinse thoroughly and let them air dry on a rack, or dry them carefully with a lint-free cloth. Never stack heavy items on top of delicate pieces.
3. Cast Iron Cookware
Cast iron skillets are the undisputed workhorses of the kitchen, but they absolutely despise the dishwasher.
Hand washing guide
