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Freeze potatoes? That’s the first thought when you’ve cooked too many potatoes again. But it’s not that easy to freeze potatoes.

Freeze raw potatoes?

Unfortunately, raw potatoes are not suitable for freezing. The low temperatures in the freezer turn starch into sugar – so the potatoes would taste much sweeter. This is not harmful to health, but the taste is very unusual. In addition, freezing destroys the cell structure. As a result, potatoes will look glassy and mushy after thawing.

Freeze boiled potatoes

In principle, however, you can freeze boiled potatoes: peeled, whole or in small pieces, you can use them after defrosting to make soup or mashed potatoes. Nevertheless, the consistency changes even when cooked, so you should really only freeze potatoes in an emergency.

However, the situation is different if you freeze the potatoes in their processed state: you can freeze potato soup and mashed potatoes without any problems, without the taste or consistency changing.

By the way, bought fries and croquettes keep so well in the freezer because they have been shock-frozen.

Instead of freezing: store potatoes properly

Freezing potatoes helps prevent potential food waste, but it’s not recommended. Because the freezer consumes a lot of energy and if the potatoes are not processed into mashed potatoes or potato soup, the consistency also suffers. If you want to preserve potatoes for a long time, a dry, cool and dark environment is ideal – for example the cellar. You can store potatoes there for months.

If you don’t have a basement or similar place for the potatoes, you should only buy small quantities. In vegetable and organic shops, potatoes are sold individually and not just in a large kilo sack. This is a much more effective way of preventing food waste.

You want to reheat potatoes that are left over from the day before? Then you should pay attention to a few tips. Here you can find out what is important when heating up the potatoes.

Whether jacket potatoes, boiled potatoes, fried potatoes or mashed potatoes: the earthy tubers are a popular side dish for various dishes. If there are a few potatoes left over from a meal, you can enjoy them warmed up later. Since bacteria and fungi can easily multiply in potatoes that have already been boiled, you should follow a few guidelines.

Important: When buying potatoes, make sure that they are organic if possible. You are supporting ecologically integrative agriculture that, for example, does not use chemical-synthetic pesticides.

Warming up potatoes: the right way to store them

If you want to reheat leftover potatoes, there are a few rules you should follow when storing them:

Pack the potatoes in a clean, airtight container as soon as possible after they have been prepared.
Don’t put the potatoes in the fridge right away, let them cool until they’re lukewarm. If you immediately cool hot and warm food, the entire refrigerator temperature rises. This not only wastes energy, but also ensures that other products that require refrigeration may spoil faster.
Stored in the refrigerator, you can eat the potatoes up to two days after they are prepared.

Warm up potatoes: Here’s how

Basically, you shouldn’t use the microwave to warm up potatoes. This is because they cannot be heated sufficiently in it to ensure that any possible bacteria are killed.

The following methods are more suitable:

In the saucepan: Put some oil in a saucepan and let the potatoes simmer for at least ten minutes at at least 70 degrees.
In the pan: Fry the potatoes in a little oil in a pan at at least 70 degrees for at least ten minutes.
In the oven: Place the potatoes in an ovenproof dish and mix them with a little oil. Then bake them at around 180 degrees for at least 15 minutes.
Tip: You can tell that you have heated the potatoes sufficiently by the fact that they are consistently hot after heating them up.

Possibilities for further processing

Once the potatoes have been warmed up, you can process them in different ways:

Potatoes that have already been boiled, for example, are good for preparing fried potatoes from them the following day.
You can also bake the potatoes in the oven until they are crispy.
Another option is to use them to make a potato casserole.
The advantage: Since the potatoes are already cooked, these recipes don’t take that long to prepare.

Should it go a little faster? Then simply serve the reheated potatoes with a herb dip and a simple green salad.

As a general rule, you should not eat potatoes with their skins on, as they contain natural toxins. Under certain circumstances, however, consumption is harmless – we will explain when this is the case.

Potatoes belong to the nightshade family. As such, they contain toxins that protect them from predators and act as a natural defense against fungal and insect infestations. The two glycoalkaloids solanine and chaconine contained in potatoes are mainly located directly under the skin. That’s why you shouldn’t eat potatoes with their skin on – this is also recommended by the Baden-Württemberg State Center for Nutrition.

Unripe potatoes with green spots or sprouted potatoes in particular have a high content of toxins. Other plant parts of the potato also contain large amounts of solanine. If potatoes are damaged on the surface or stored incorrectly, this encourages the formation of toxins.

By the way: To store potatoes, you should choose a dark, cool and dry place – preferably with a temperature between four and six degrees Celsius.

In addition, potatoes are often treated with germination or mold inhibitors so that they can be stored more easily and can be offered all year round. Although there are regulated maximum values ​​for such substances, you should not eat treated potatoes with their skins and instead use organic potatoes. These must not be treated with germ or mold inhibitors.

Even if the skin contains healthy minerals and secondary plant substances: the peeled potato is usually the better choice. You can find tips for peeling potatoes in our guide. However, if you can be sure that the glycoalkaloid content is low – that is, the potato is ripe, fresh and undamaged – there is nothing wrong with eating the skin from time to time.

Eating potatoes with their skins: you have to pay attention to this

If you want to eat potatoes with skin, you should consider the following points:

Make sure your potatoes have been stored properly. Even better: reach for fresh potatoes.
If they have a lot of green spots or sprouts, you shouldn’t eat potatoes with their skins on. However, you can generously cut out isolated green areas.
Use potatoes with no surface damage.
Grab local organic potatoes and buy them in small quantities so you don’t have to store them for long.
By the way: Potatoes are in season in Germany from June to the end of October. So it is easy to get hold of fresh potatoes at this time.

Potato varieties that are commercially available from us must not exceed a certain maximum value of solanine (200 milligrams per kilogram of fresh mass). On average, cultivated varieties contain around 18 to 94 milligrams of solanine per kilogram, according to the Baden-Württemberg State Center for Nutrition. It is therefore generally harmless to eat ripe and properly stored potatoes with their skins on. Imported potatoes, on the other hand, can have higher solanine levels, so it’s best to use local produce.

Pregnant women and children should always peel potatoes

According to the Baden-Württemberg State Center for Nutrition, mild solanine poisoning occurs from around 400 milligrams per kilogram of potatoes. The first symptoms such as nausea, headache, diarrhea and a sore throat can then be felt within 24 hours. In children, however, significantly smaller amounts of solanine can be dangerous due to their lower body weight. Children and pregnant women should therefore never eat potatoes with their skins on.

By the way: Glycoalkaloids are water-soluble but heat-resistant. This means that some of the toxins are released into the water during cooking and are not rendered harmless by heat alone. You should therefore always throw away the cooking water from unpeeled potatoes.

You can also prepare creamy mashed potatoes without milk. We will tell you which ingredients are suitable for the potato main course or side dish.

Mashed potatoes without milk can be just as creamy as the classic recipe. Traditionally, mashed potatoes are made with cow’s milk. However, if you avoid dairy products, you can prepare the homemade mashed potatoes with alternative products.

In addition to milk alternatives, you need potatoes and spices of your choice. Potatoes are healthy because they contain protein, fiber and important micronutrients, among other things.

When choosing your ingredients, make sure they come from organic farming. In this way you avoid residues of chemical-synthetic pesticides in and on your food. You also reduce your carbon footprint if you choose regional potatoes.

Tip: Easily plant potatoes yourself.

Plant-based milk alternatives

To cook mashed potatoes without milk, you can switch to plant-based alternatives. These lactose-free and vegan products are particularly suitable:

Oat milk: Easily make your own oat milk from oatmeal and water. The oat milk has a slightly tart taste and goes well with the hearty recipe. You can also get oat flakes and oat milk from regional cultivation.
Soy milk: Milk made from soy is a popular alternative because it is nutritious and tastes creamy. However, soy milk is mostly imported and therefore contributes to more CO2 emissions.
Almond milk: With our simple quick recipe you can make almond milk yourself. It is a bit sweeter than other alternatives and gives the mashed potatoes a nutty note.

Alternatives to dairy products

If you want to cook your mashed potatoes without milk or milk alternatives, you can choose the following products:

Catch the cooking water from the potatoes and mix some of it with the potatoes as you mash. This preserves the aroma of the potatoes and you avoid wasting nutrients in the potato water. The starch contained in the water makes the mashed potatoes particularly creamy.
Vegetable broth is a flavorful alternative. Make your own vegetable broth and cook a hearty puree with it.
In addition to the vegetable broth, you can also use yeast flakes. They are flavorful and add a creamy texture to the mashed potatoes without milk. So that the mashed potatoes don’t get too dry, it’s good to mix the potatoes with yeast flakes and some water.
Use fats or oils. Vegan margarine and olive oil are flavor carriers and bind the potatoes into a smooth mass when pureed.
The amount of ingredients depends on the amount of potatoes you have. It’s best to drain off the cooking water, catch as needed, and then gradually add the milk alternatives until you get a creamy and smooth consistency.