The One Ingredient That Can Prevent Mushy Boiled Potatoes - Chowhound (2024)

ByAllie Sivak

We've all experienced it: the disappointing moment when you slice into a boiled potato, only to reveal its mushy (dare we say, gluey) center. There's nothing like an overly softened boiled potato to put a damper on a French-inspired potato salad with tangy red wine vinaigrette or any good mashed potato side dish. Luckily, there's one ingredient that can fix this mushy potato predicament: vinegar.

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When a small amount of vinegar is added to a pot of boiling water, along with a generous sprinkling of salt, the resulting boiled potatoes hold their shape while softening throughout just the right amount. When the acidic ingredient is added to the water, it draws out some of the excess starch that could cause gluey textures while forming a sort of thin film around the spud's exterior. Think of this layer as a protective barrier that prevents the potatoes from becoming waterlogged and overly soft over the boiling process. This helps them retain their shape and structure as they cook evenly throughout the boil.

Vinegar helps boiled potatoes hold their shape

The One Ingredient That Can Prevent Mushy Boiled Potatoes - Chowhound (5)

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The presence of acid in boiling water can retain structure-providing carbs in potatoes, so they don't break down and soften as easily as they would in a pot of boiling water sans vinegar. Since the objective is to fully cook the potatoes (without making them mushy), it's important to note that you just need a bit of vinegar to get the job done. Adding too much vinegar could cause the potatoes to cook way slower than desired, so it's all about balance. Finding the right amount of vinegar might take a bit of experimentation, depending on the type of potatoes you're using (waxy vs. starchy varieties, for instance).

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As a general rule though, you just need to add a tablespoon or two of vinegar to every couple quarts of boiling water. It's that simple: Add your vinegar, salt your water, then transfer your washed, dried, and cut or peeled potatoes to the pot. The vinegar solution may cause the cook time to be a bit longer than you're used to, so check your potatoes often for doneness. They will be ready to remove and cool from the pot when they are tender through the middle when pieced with a fork. The texture will be soft, but not falling apart, thanks to the addition of the acidic ingredient.

This trick works exceptionally well for par-boiling

The One Ingredient That Can Prevent Mushy Boiled Potatoes - Chowhound (6)

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Adding vinegar to your boiling water to cook the perfect potatoes is a trick worth keeping up your sleeve. There are, however, certain instances when this cooking method is especially useful in the kitchen. Specifically, vinegar is a star ingredient when it comes to parboiling potatoes, or boiling them for a short time prior to tossing them in the oven to bake or crisping them up in the fryer. Since vinegar helps to retain the potatoes' shape and structure, parboiling potatoes in a vinegar solution prior to frying them will help you achieve fries with a crisp exterior and soft fully-cooked interior. No more falling-apart, mushy potato wedges or waffle fries.

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When cooking up skillet potatoes for a slow Sunday morning brunch, parboiling potatoes in vinegar before adding them to the skillet will help them cook quicker and keep their uniform cubed shape, instead of getting smooshed up in the pan. Parboiling in vinegar also works like magic in baked dishes like potatoes au gratin, to keep the signature scalloped potato shape. Plus, adding both vinegar and salt to your boiling water adds a nice balance of tangy and savory flavor, making this cooking method a win-win on all fronts.

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The One Ingredient That Can Prevent Mushy Boiled Potatoes - Chowhound (2024)

FAQs

The One Ingredient That Can Prevent Mushy Boiled Potatoes - Chowhound? ›

Luckily, there's one ingredient that can fix this mushy potato predicament: vinegar. When a small amount of vinegar is added to a pot of boiling water, along with a generous sprinkling of salt, the resulting boiled potatoes hold their shape while softening throughout just the right amount.

How to stop boiled potatoes from going mushy? ›

The starch in potatoes is held together by pectin. When that pectin breaks down too quickly in the boiling process, mushy potatoes result. Adding vinegar to the water fixes that problem because, as López-Alt explains, “pectin breaks down much more slowly in acidic environments.”

How to boil potatoes without getting mushy? ›

While you can wait for the water to boil before adding in the potatoes, they will cook more evenly if you add them to the pot while the water is cold. Potatoes added to boiling water can turn out mushy on the outside and tough on the inside. When the water reaches a boil, reduce it to a simmer and cover. Step 5.

How to keep boiled potatoes firm? ›

If you cook potatoes in water, it's likely they will become mushy after a while. To fix this and keep your potatoes intact, pour a little bit of vinegar (white, wine or cider) in cooking water. It works like magic!

What does vinegar do to boiled potatoes? ›

03/5Why vinegar is added to boiling potatoes? This hack has been suggested by several home cooks and chefs and the reason behind it is that vinegar can help the potatoes retain their shape. Vinegar causes the potatoes to form a thin crust that further helps in retaining their shape.

Why do my potatoes go to mush when boiled? ›

If your potatoes have been growing in very dry soil, the potatoes themselves will have a fairly low moisture content when harvested. What this then means is that when the potatoes are build they absorb more water and fall to pieces quite quickly.

How do you reduce moisture in boiled potatoes? ›

The water must be boiling before they are put in, and a little salt is added. When fully cooked the water is poured off, then the kettle or pot is placed on the stove, with the lid removed, to allow the moisture to evaporate. By this method of cooking potatoes, I have never failed to render them dry and mealy.

How do you fix mushy potatoes? ›

Whisk a little cornstarch into the warm potatoes, only a teaspoon at a time, until the potatoes thicken to your liking. The potatoes must be warm. You can also use tapioca starch or potato starch, although most cooks are less likely to have those products on hand.

How do you make potatoes less soggy? ›

You can use what you have on hand: Flour, cornstarch, or powdered milk are all solid options that are probably already in your pantry. Potato flour and potato starch would work as well. Stir in the thickening agent gradually, about a tablespoon at a time, until the potatoes have reached your desired consistency.

Why put salt in water when boiling potatoes? ›

Shower them with salt.

Dense potatoes don't absorb seasonings easily, so you'll need to salt the water liberally so that the water the potatoes do drink up also carries in seasoning. And because potatoes are so timid in flavor, they need that salt to bring them out of their shells. Pour some salt in, then keep going.

How do you keep potatoes from getting soft? ›

Store potatoes in a bin.

Either open the bag or store them in an open container. This lets the air circulate around the potatoes and keeps the moisture levels down. Too much moisture can cause your potatoes to go bad quickly. Don't store potatoes near apples. Fruits, especially apples, give off ethylene as they ripen.

How to boil potatoes perfectly? ›

Season with a teaspoon of salt per pound of potatoes. Bring water to a boil over high heat, then reduce heat to medium and cook at rapid simmer until potatoes are easily pierced with a paring knife, about 10 minutes for chopped potatoes and 20 minutes for whole potatoes.

Why are my potatoes still hard after boiling? ›

Some potatoes are naturally firmer than others. It's possible that the variety of potatoes you used may have a firmer texture, even when fully cooked. For soups, it's generally recommended to use russet or Yukon Gold potatoes, as they tend to break down and become softer when cooked.

How to keep boiled potatoes from getting mushy? ›

Luckily, there's one ingredient that can fix this mushy potato predicament: vinegar. When a small amount of vinegar is added to a pot of boiling water, along with a generous sprinkling of salt, the resulting boiled potatoes hold their shape while softening throughout just the right amount.

Is it better to boil potatoes with vinegar or baking soda? ›

In my previous roast potato recipe, I recommended adding a splash of vinegar to the water for the initial boil. The idea is to control the breakdown of pectin, the cellular glue that holds vegetables together. Think of it as the mortar between bricks.

Why do you add baking soda to boiling potatoes? ›

I love it when cooking involves a bit of a science experiment. In this case, research suggested adding baking soda to the pot when parboiling potatoes; having water of higher alkalinity than usual helps the outside edges of the potatoes break down more, opening up the possibility of a crisper outside texture.

How do you harden potatoes after boiling them? ›

Many chefs recommend putting the drained spuds back in the pan, over low heat for a few moments to "dry out" the potatoes. This is suggested so that the potatoes will not be wet enough to contribute extra liquid to the final mash.

Why do potatoes go soft when boiled? ›

Some food science: Potatoes (like many other starchy plants) contain hemicellulose, a carbohydrate that provides structure to the tuber. It also readily breaks down when boiled in water, lending to the creamy texture we know and love.

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