Potatoes are a versatile root vegetable and a staple food in many households. A basket, bowl, or paper bag is better than a plastic bag. Store uncooked potatoes in a cool, dark place with plenty of air circulation — not in the refrigerator. However, leftovers may become watery or gummy, since potato starches change shape and release water as they cool (22). Storing at temperatures slightly above refrigeration is a great way to extend shelf life and maintain vitamin C content. Fresh and healthy potatoes last the longest, so look for firm smooth ones without any blemishes or sprouts. In fact, one study found that storing potatoes in cool temperatures more than quadrupled their shelf life, compared to storing them at room temperature (3). Related: 11 Fruits and Vegetables That Last the Longest. However, many countries have mandatory guidelines that limit the amount of solanine in commercial potatoes to under 91 mg per pound (200 mg/kg), so this is not a common concern (8, 9). In regards to homegrown potatoes, cure them briefly at warmer temperatures and high humidity before long-term storage. The low glycemic diet may aid weight loss and reduce blood sugar levels, but it has drawbacks too. These tasty tubers can be prepared in many ways, but they are typically baked, boiled, roasted, fried or dehydrated. Are Pesticides in Foods Harming Your Health? Resistant starch also promotes gut health, since gut bacteria ferment it and produce short chain fatty acids, which help keep the lining of your large intestine healthy and strong (25, 26, 27). Raw potatoes can also turn brown when exposed to air in the freezer. Once peeled and sliced, raw potatoes quickly discolor when exposed to air. The best way to allow free circulation of air is to store them in an open bowl or paper bag. For longer storage, consider vacuum packing, a technique in which all the air is removed from a package and it’s tightly sealed. Raw potatoes that have been cut should be stored in a bowl of cold water and refrigerated. Cooked potatoes will last for several days in the refrigerator. Storing at lower temperatures also helps preserve their vitamin C content. © Copyright 2020, 20 Things to Cook This Month That Have Nothing to Do With Thanksgiving, 15 Vegan Muffin Recipes for Easy Breakfasts, 15 Comfort Food Dinners That Start With Creamy Alfredo Sauce, 2-Ingredient Snacks That Are Too Easy Not to Make, Use Your Stale Bread in These Savory Bread Puddings, 13 Spiked Apple Cider Cocktails to Celebrate the Season, 15 Comfort Food Casseroles Inspired by World Cuisines, 12 Recipes to Turn Extra Chicken into Healthy Main Dish Salads, 15 Ground Beef Soup Recipes for Easy Weeknight Dinners, Ground Turkey Slow Cooker Recipes for Easy Weeknight Meals, 11 Top Chicken Casseroles That Lean to the Healthy Side, 12 Classic Italian Recipes Made Easy in the Instant Pot, 11 Fruits and Vegetables That Last the Longest, our guide on how to freeze and reheat mashed potatoes, 25 Dinners That Start With Frozen Potatoes, 15 Simple Dinner Recipes That Start With Potatoes, The 7 Biggest Mistakes You Make When Baking Potatoes. Green sprouts are not a sign of spoilage. This helps extend their storage life. Your potatoes should be stored in a cool, dark, dry place, such as a pantry or cupboard. In addition to being rich in potassium, they’re a great source of carbs and fiber (2). Sunlight or fluorescent light can cause potato skins to produce chlorophyll and turn an undesirable green color (1). Washing with a salt or vinegar solution can help remove more pesticide residue than water alone. Cooking and cooling also increase the formation of resistant starch, a type of carbohydrate that humans cannot digest and absorb. Storing potatoes in these conditions can help delay the formation of sprouts on the skin, one of the first signs of spoilage. Cooked potatoes can be kept in the refrigerator for up to four days, or in an airtight container in the freezer for up to one year. Storing potatoes in the fridge will cause the starch to turn to sugar, giving them a sweet flavor that you don't want from your potatoes. Potatoes are types of starchy root vegetables called tubers. Having high blood sugar levels is an incredibly common problem. However, they do indicate that nutrients are leaving the potato. Studies show that they have many health benefits. And it is important to store potatoes the right way to keep them as fresh as possible. Resistant Starch 101 — Everything You Need to Know, Top 9 Foods Most Likely to Cause Food Poisoning, A Beginner’s Guide to the Low Glycemic Diet, 12 Simple Tips to Prevent Blood Sugar Spikes, 15 Easy Ways to Lower Blood Sugar Levels Naturally. They'll be good for the next 24 hours. However, if left in water for more than 24 hours, they can absorb too much water and become soggy and tasteless. If pesticides are a concern, rinsing with a 10% vinegar or salt solution can remove more than twice as much residue as water alone (17). This is because the enzymes that cause browning are still active in the potato, even under freezing temperatures (14). At room temperature, potatoes will last up to two weeks. Many people discard green potatoes due to their higher solanine levels (5). Like all frozen products, leftover potatoes will last longest if they are protected from air while in the freezer. If you don’t plan on eating cooked potatoes within a few days, it’s best to store them in the freezer. Without air circulation, the moisture released from the potatoes will collect inside the container and promote the growth of mold and bacteria (16). While cooked potatoes do well in the freezer, raw potatoes do not, so it's best to cook them before freezing. Raw potatoes turn brown or grey when exposed to air, so they should be cooked quickly or stored in water until ready to use. Resistant starches are starch molecules that resist digestion, functioning kind of like fiber. Use a plastic bag or storage container and press all the air out of it before sealing. Most people purchase potatoes from their local market, but if you grow your own, “curing” before storing will extend their shelf life. To store, keep them loosely covered in a paper bag, mesh bag, or cardboard box to provide good air circulation. Uncooked potatoes should also never be stored in the freezer. However, the green skin, sprouts, and "eyes" contain the highest concentration of glycoalkaloids. While cooked and cooled potatoes have some health benefits, they should be eaten within three or four days to avoid spoilage and food poisoning (28). Storing potatoes the right way can also make a big difference when you cook them as the potato storage conditions affect their color and taste. You may also notice a sour or musty smell, which indicates spoilage. Very low temperatures can cause “cold-induced sweetening.” This happens when some of the starch is converted to reducing sugars (10).

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