Why do my potatoes disintegrate when boiled? - (2024)

If your homegrown potatoes are turning to mush when you cook them, you may be wondering why. It’s nearly always to do with growing conditions…

Why potatoes can absorb too much water

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. So annoying!

Growing & Harvesting Tips

In future years, be sure to water your potatoes frequently during dry spells (they are often overlooked as they tend to keep nice lush green foliage even if there is little water in the soil).

Also, when harvesting main crop potatoes, be sure to cut down the foliage and then leave the tubers in the ground for a week or so for the skins to firm up a bit before you harvest them. This will help them to hold their shape.

How to Cook Potatoes that absorb too much water

For this season, if you’ve been struggling with potatoes that turn to mush, we’d recommend you steam them whole instead of boiling them. We’ve actually done a bit of testing on this and they definitely hold together far better if steamed whole (with skins on). Here are three ways to cook them:

  • Steam them and then add mayonnaise or butter/olive oil.
  • Roast them with skins on (no need to par-boil or steam beforehand, just cook in a roasting pan.)
  • Mash them: peel them, steam them and then mash.

Why do my potatoes disintegrate when boiled? - (2024)

FAQs

Why do my potatoes disintegrate 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.

Why are my boiled potatoes crumbling? ›

One important thing to know about potatoes is that water is their enemy. Yep, it cooks the potatoes, but if they spend too long bathing, they'll become waterlogged. And no matter what type of potato you're boiling, waterlogged potatoes will be grainy, crumbly and mushy with little flavor (it'll leach into the water).

How to stop potatoes from going mushy when boiled? ›

According to Love Potatoes, dropping them into cold water instead of boiling water (and letting the potatoes and water heat up together) will prevent the outside from cooking faster than the inside. As for whether the “perfect recipe” calls for mayo or mustard, we'll let your family and friends fight that one out.

How do you boil potatoes without them falling apart? ›

It's generally recommended to boil potatoes with their skins on to help them retain their shape. The skin acts as a protective barrier, preventing water from seeping into the potato's flesh and resulting in a mushy texture.

How do you keep potatoes firm when boiling? ›

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!

Why do some 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.

What happens if you boil potatoes too long? ›

Tip #3: Don't Overcook or Undercook the Potatoes

If you overcook them they disintegrate and your potatoes will be soupy. The specific cooking time depends on the size of your potato: a perfectly cooked piece of potato should give no resistance when cut with a knife, but shouldn't crumble into a million pieces.

Why not put potatoes in boiling water? ›

For most potato dishes it's important to add the potatoes to cold water and allow the water to come to a boil with the potatoes in the water. The potato starch can react as soon as it comes in contact with hot water, which will promote uneven cooking and mealy potatoes.

How do you cook potatoes so they don't fall apart? ›

Most often, then, the solution to evenly cooked potatoes is cooking them twice: First, boil, steam, or steam-roast (a fancy term for cooking them with water in the oven) until they're mostly tender but not fall-apart finished. Second, brown the outsides and finish cooking the interiors on the stovetop or in the oven.

Why put salt in water when boiling potatoes? ›

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.

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.

Why do you add vinegar to water when boiling potatoes? ›

Vinegar helps boiled potatoes hold their shape

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.

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.

What potatoes don't fall apart when boiled? ›

Waxy potatoes will hold their shape when boiled—and dressed with a ton of cheese and pepper. This makes waxy varieties the best choice for dishes where you want the potatoes to maintain their shape: Think potato salad, gratin, smashed crispy potatoes, cacio e pepe potatoes, or a tray of salt-roasted spuds.

Why are my smashed potatoes falling apart? ›

Smashed potatoes will fall apart if they are overcooked or if you try to mash them while they are still hot. Long story short - cook the potatoes until al dente (slightly firm).

How do you know when potatoes have boiled long enough? ›

Cubed spuds will take around 15 minutes where larger chunks or whole new potatoes will be 20-25 minutes. To check when they are done, pierce the potatoes with the tip of a knife to see how much resistance there is. If it goes in easily, you're done!

Why are my potatoes still crunchy after cooking? ›

If the potato cubes were too large or unevenly cut, this might result in some pieces remaining crunchy. Crockpot Temperature: Crockpots can cook at varying temperatures, even on the same setting. If your crockpot is not heating evenly or maintaining a consistent temperature, it might have resulted in uneven cooking.

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