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.
Draining. Make sure to drain your boiled spuds immediately to prevent them becoming too soggy. Don't worry about them getting cold as they can retain their heat quite well if left in the pot with the lid on.
To keep them from turning brown or becoming mushy when cooked, add some white vinegar (1 Tbsp. per 2 cups water) before submerging the potatoes. You can also toss cut potatoes with a mixture of vitamin C and water to keep them white without flavoring them.
Boil 10 to 12 minutes for cubed, 15 to 20 for whole medium-sized, or 25 to 30 for whole russets. Check with a fork or knife.
Instructions. Drain the potatoes and place them back into the pot over medium heat and stir them. Stirring removes the excess water and dries them out. You can hear the sizzling of the water evaporating.
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.
“Salting the water not only seasons the potato, but it also allows it to boil to a hotter temperature. This in turn cooks the potatoes' starch more thoroughly, resulting in a more creamy texture [for mashed potatoes],” says Sieger Bayer, Chef and Partner at The Heritage.
Bring the water to a boil. Reduce heat to medium low. Cover the pot with a lid and let simmer until fork-tender, about 10-15 minutes for small and/or cubed potatoes or 20-25 minutes for large potatoes.
Rinsing potatoes helps remove excess starch, so it is recommended to rinse the potatoes before cooking. To ensure even more starch is out of the way, it's recommended that they even be quickly rinsed after boiling. We recommend using hot water for rinsing after boiling and cold water prior to boiling.
Overcooked potatoes aren't always dry and hard, as it's possible to overboil a potato too. When you do so, more water is absorbed by the potato. Then, when you go to mash them, the water releases, resulting in that sad, soupy mess you may want to toss in a compost pile far, far away.
Follow this tip: Begin the process of seasoning your mashed potatoes by adding salt to the water when cooking the potatoes. You won't have to add as much salt later and, most importantly, you won't find yourself with bland potatoes.
Starting the potatoes in cold water helps them cook more evenly. Stir in the salt. Stir 1 teaspoon of salt into the water until dissolved. Bring to a boil, then reduce to a simmer.
Soaking potatoes in water helps remove excess starch. Excess starch can inhibit the potatoes from cooking evenly as well as creating a gummy or sticky texture on the outside of your potatoes. Cold water is used because hot water would react with the starch activating it, making it harder to separate from the potatoes.
Tips for the Best Mashed Potatoes
Start cooking the potatoes in cold water: This ensures that the potatoes cook evenly. Otherwise, if you start with hot or boiling water, the outsides of the potatoes cook and soften while the middles are still hard and crunchy.
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.
To parboil your potatoes to perfection, cut them into large chunks and put them in a pot of boiling water for around ten minutes, depending on the size. Once the outside is soft but the inside still raw and firm, you're ready to roast!
Ideally, you should wait until your water is at a rolling boil. The boiling water will agitate and dissolve the salt quickly. You can add salt to your cold water if your prefer, though. You don't want to forget it after all!
One of the starch molecules in potatoes is called amylose, which is responsible for making mashed potatoes "gluey" and pasty. Rinsing or soaking cut raw potatoes helps to wash away a very small amount of amylose.
Don't soak cut potatoes longer than overnight.
If keeping potatoes in water for more than an hour, refrigerate. However, don't soak them any longer than overnight—after that, the potatoes start to lose their structure and flavor.
How long can peeled and cut potatoes sit in water before cooking, before they begin taking on too much water? A: We usually recommend no more than 24 hours. You can keep the potatoes from absorbing the water by making sure the water is not salted, and is chilled (you can even add ice to the water).
Vinegar causes the potatoes to form a thin crust that further helps in retaining their shape. Vinegar increases the acid pH levels of water which further helps the potato just like when you add a little salt to the water while boiling eggs.
When you boil potatoes, vegetables, pasta, etc. they absorb the flavor the liquid. So adding salt and vinegar to the water allows potatoes to absorb those flavors while boiling.
Yes, you can over boil potatoes. For some dishes this won't matter, since the texture is meant to be soft and mushy in the first place, like for mashed potatoes. If you're making anything else, an overly cooked potato will be a problem and should be avoided.
The Mistake: Overworking the Potatoes with a Food Processor, Blender or Mixer. Too much — or too vigorous — mashing will produce gluey potatoes. Your best tool is an old-fashioned masher, fork, ricer or food mill.
Overcooked or insufficiently drained potatoes can become sticky, as can the wrong kind of potato. But the main problem is overworked spuds. The science is simple: Boiled potatoes develop swollen starch cells. When ruptured during mashing, the cells release starch.