After fifty years at the stove, she has seen the dishwasher ruin more good kitchen things than anything else.
A warped spoon. A rusty pan. A mug that no longer keeps your coffee warm.
The dishwasher is a wonderful helper. But it is not kind to everything in your cupboard.
Here are the nine things she always washes by hand, and why. Each one comes with an easy fix that takes a minute or two.
The cast-iron pan is only the start. Number 4 is in almost every cupboard, and most of us load it without a second thought.
1. Cast-Iron Skillets
Your cast-iron skillet has a dark, smooth finish called seasoning. It is built up over years of cooking with oil.
The dishwasher’s hot water and strong detergent strip that seasoning away. One cycle can undo years of patient work.
Then the bare iron sits wet, and rust shows up fast. You open the door to orange spots.
Instead, rinse the pan in warm water while it is still warm. A stiff brush or a little coarse salt lifts stuck bits.
Dry it right away on the stove over low heat. Then rub in a thin coat of cooking oil before you put it away.
Never let it soak overnight. Even a few hours in the sink can leave rust behind.
Treated this way, a skillet can outlast you and go to your grandchildren.
2. Wooden Spoons and Cutting Boards
Wood drinks in water. In a long, hot cycle, it swells, then dries too fast.
That is how spoons warp and cutting boards crack and split along the grain.
Rough, cracked wood is also harder to keep clean. Bits of food settle into the gaps.
Wash wooden things by hand in warm, soapy water. Rinse, and stand them up so air reaches every side.
Don’t leave them in the sink, either. Even a short soak can roughen the wood and loosen glued handles.
Every so often, rub your board with a little food-safe mineral oil. It keeps the wood smooth and looking cared for.
A good wooden spoon softens with age. Many cooks still stir with one their mother used.
3. Good Chef’s Knives
A sharp knife is a cook’s best friend. The dishwasher dulls it faster than almost anything.
The blade rattles against the racks and other dishes. The heat and detergent are hard on the edge, too.
Wooden or riveted handles can loosen and crack after many hot cycles.
Wash your good knife by hand, right after you use it. Wipe from the back of the blade toward the edge.
Dry it at once. Put it back in its block or on a magnetic strip.
Never leave a knife hidden under soapy water. You may reach in and forget it is there.
A knife that stays sharp is easier to handle. It goes where you aim it.
4. Insulated Travel Mugs and Tumblers
Here it is, the one that surprises most readers.
These mugs are on almost every kitchen shelf now. The travel mug for the morning drive. The tumbler a grandchild gave you for your birthday.
And so many of us drop them in the top rack without a thought.
Here is what makes these mugs work. They have two walls of steel, with a thin space between them.
Most of the air is pulled out of that space. That leaves a vacuum.
With almost nothing to carry the heat across, your coffee stays hot. Your iced tea stays cold.
The hot dishwasher cycle puts that seal under strain. The steel warms and cools, again and again.
Over time, the seal can give way. Air slips back into the space between the walls.
From the outside, the mug looks just the same. But your coffee is lukewarm by mid-morning, and you can’t think why.
How to tell if yours has lost its seal
Fill the mug with hot water and close the lid. Wait a few minutes, then touch the outside.
A good mug feels cool on the outside. If it feels warm, the heat is getting through, and the seal is likely gone.
Some people also notice a faint rattle, or water trapped between the walls.
How to keep yours working
Wash the mug by hand in warm, soapy water. A long bottle brush reaches the bottom easily.
Take the lid apart if it comes apart. Small rubber rings can hold on to coffee and milk.
Pull the ring out gently, wash it, and let it dry before you press it back.
Leave everything open on a towel overnight. It dries fully and smells fresh in the morning.
Some mugs are marked dishwasher safe. Check the bottom or the box, and still skip the hottest settings.
It takes two minutes at the sink. Your morning coffee will thank you all winter.
5. Nonstick Pans
Nonstick pans make eggs and pancakes so easy. But that slick coating is gentler than it looks.
Dishwasher detergent is strong and gritty. Over time, it wears the coating down.
You notice it slowly. Eggs start to catch, and the surface looks faded or scratched.
Let the pan cool first. Then wash it with a soft sponge and warm, soapy water.
Skip the steel wool and scouring pads. Cook with wooden or silicone spoons instead of metal ones.
Store it with a paper towel or a soft cloth between pans. That spares the surface from scrapes in the cupboard.
Treat it like a favorite sweater, not a work boot, and it will serve you for years.
You may also like: Why Grandma Kept a Slice of Bread in the Cookie Tin: 6 Old Kitchen Tricks for Keeping Things Soft That Still Work
6. Aluminum Pots and Sheet Pans
Plain aluminum is a workhorse. Think of the big soup pot and the sheet pan you roast vegetables on.
The dishwasher does not treat it well. It comes out dull, chalky and gray.
That gray film can rub off on your hands and your dish towels.
The shine rarely comes all the way back. Many cooks learned this with a favorite pan.
Wash aluminum by hand with warm water and mild soap. Dry it well so water spots don’t set.
For stuck-on bits, fill the pan with warm, soapy water. Let it sit while you clear the table.
A little browning on a well-loved sheet pan is fine. It is the sign of many good dinners.
7. Copper Pots and Mugs
Copper is beautiful. A row of copper pots makes any kitchen feel warm.
The dishwasher turns that glow dark and blotchy. The metal tarnishes and loses its shine.
Many copper pots have a tin or steel lining inside. The dishwasher is hard on that, too.
Copper mugs for cold drinks fare the same. They come out spotted and dull.
Wash copper by hand with mild soap. Dry it right away with a soft towel.
To bring back the shine, many cooks rub on a paste of lemon juice and salt. A copper cleaner from the supermarket works too.
Rinse well and dry. Then hang your pots where you can see them.
8. Crystal, Gold-Rimmed and Hand-Painted China
These are the dishes that come out for holidays. Maybe your wedding china, or your mother’s.
Gold and silver trim fades in the dishwasher. A few cycles can wear it right off.
Hand-painted patterns lose their color. Crystal can turn cloudy with tiny etch marks, or chip against the racks.
Wash these pieces by hand, one at a time. Lay a towel in the sink so nothing knocks against the bottom.
Use lukewarm water rather than hot. Sudden changes in temperature can crack fine glass.
Dry with a soft, lint-free cloth. It is a quiet job, and a lovely one to share with a grandchild.
Tuck a small card in the china box that says “hand wash only.” The next person to use it will know.
9. Graters and Garlic Presses
These seem like perfect dishwasher items. They are steel, and they are fiddly to clean.
But the dishwasher heat bakes bits of cheese and garlic right onto the tiny holes.
Then they are even harder to get out. The next time you grate, old crumbs come along.
Rinse them right after you use them, before food dries. Run a brush along the grater in the same direction you grate.
For a garlic press, rinse it open. Then poke out the holes with a toothpick.
Half a lemon rubbed over the grater helps lift cheese, too. A hand wash gets them truly clean.
Store the press open so it dries all the way through.
A Few Habits That Make Hand Washing Easy
Wash these things while you wait for the kettle or the oven. Two minutes here and there adds up.
Keep a soft brush, a bottle brush and a good dish towel right by the sink.
Put a rubber mat in the sink. It cushions glass and gives your hands something to grip.
Wear soft gloves if hot water dries out your hands.
Set things on a rack or a towel to dry. Make sure metal is fully dry before it goes away.
Put on the radio, or call a friend on speaker. Some of the best kitchen talk happens at the sink.
When to talk to your doctor
Hand washing is gentle work, but it is still work for your hands.
If your hands are often sore, stiff or swollen at the sink, talk to your doctor.
The same goes for skin that cracks, bleeds or stays red after washing. Your doctor can help you find out why.
And if a knife cut is deep or will not stop bleeding, get care right away.
Before You Close the Cupboard
None of this means giving up your dishwasher. It still does the plates, the glasses and the everyday forks beautifully.
It just means a handful of special things get a few minutes of your time. In return, they stay with you for years.
That is what fifty years at the stove teaches. The things we care for keep caring for us. If you loved these old kitchen lessons, here are two more to enjoy next.
For more old-school kitchen know-how, discover what to do with leftover rosemary and why onion skins deserve a jar by the stove. And for another everyday habit worth rethinking, see what dentists notice about tongue cleaning.
