7 Kitchen Myths Everyone Still Believes (and What’s Actually True)

Some kitchen “rules” get passed down for generations, and nobody stops to ask if they’re actually true. Some of them just waste your time. Others make cooking harder than it needs to be.

Here are 7 kitchen myths almost everyone still believes, and what’s really going on.

Myth 1: Searing Meat “Seals In” the Juices

Searing gives meat a delicious brown crust and a lot of flavor. What it doesn’t do is lock moisture inside. Seared meat still loses juices as it cooks.

What actually keeps meat juicy: not overcooking it, and letting it rest for a few minutes before you cut it.

Myth 2: Oil in Pasta Water Stops Pasta From Sticking

Oil mostly floats on top of the water, so it barely touches the pasta while it cooks. It can even make sauce slide off the pasta later.

What actually works: use plenty of water and give the pasta a good stir in the first minute or two.

Myth 3: Salt Makes Water Boil Faster

Salt actually raises the boiling point slightly, and with the amount you use in cooking, the difference is tiny. You won’t notice it either way.

Why salt the water then? For flavor. Pasta and potatoes absorb some of that salt, and they taste much better for it.

Myth 4: Alcohol Completely Cooks Off

A splash of wine in a sauce doesn’t disappear the moment it hits the heat. How much alcohol remains depends on how long and how you cook it, and some of it often stays in the dish.

Good to know: if you’re cooking for kids, someone who doesn’t drink, or someone who must avoid alcohol, choose an alcohol-free version.

Myth 5: You Should Never Wash Mushrooms

The idea is that mushrooms soak up water like a sponge. In reality, a quick rinse adds very little water, especially if you dry them right after.

Lazy tip: rinse them just before cooking, pat them dry, and skip the tedious brushing.

Myth 6: Never Put Hot Food in the Fridge

Leaving food to cool on the counter for hours is the bigger risk. Food safety guidance generally says to refrigerate cooked food within about two hours.

What actually helps: divide big batches into smaller, shallow containers so they cool faster, then put them straight in the fridge.

Myth 7: Microwaving Destroys All the Nutrients

Every cooking method changes food a little. Because microwaving is quick and often uses little or no water, it can actually help preserve some vitamins that are lost when vegetables are boiled for a long time.

Bottom line: the microwave is a perfectly good tool for steaming vegetables and reheating leftovers.

Bonus Myth: A Raw Potato Fixes Salty Soup

This one deserves its own story. A potato absorbs some liquid, but that liquid is just as salty as the rest of the soup. If your dish is too salty, check out our Food Rescue tips for fixes that actually work.

Two Cheap Tools That Beat Most Myths

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Most of these myths survive because we cook by guessing. An instant-read thermometer replaces the guessing for meat and ends the “is it done yet?” argument. For mushrooms, a soft mushroom brush makes the washing debate pointless: wipe, brush, done.

Why Kitchen Myths Stick Around

Most of these “rules” started with a grain of truth or a clever guess, and then got repeated until everyone believed them. The good news? Letting go of them often means less work in the kitchen.

Which of these did you grow up believing? Save this post and share it with the person in your family who still oils the pasta water.