Fermented vegetables - their characteristics and recipes
Oliwia Kaczmarek
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Diets Premium Expert • 23.10.2026
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Scientifically reviewed by a clinical dietitian:
This article has been peer-reviewed for adherence to IŻŻ, WHO, and PTGiP clinical nutritional standards.
| Diets Premium Expert Oliwia Kaczmarek | min read 6 min | Scientifically reviewed by a clinical dietitian 23.10.2026 |
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Key Takeaways
Fermentation, also known as pickling, is one of the oldest methods of food preservation. In this process, lactic acid fermentation is used, which is carried out by lactic acid bacteria. The most commonly pickled vegetables are cucumbers and cabbage, but other vegetables and fruits, such as beets, pumpkins, and apples, can also be used. Fermented vegetables have many health benefits, so it is worth including them in your diet.
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Lactic acid fermentation – a method for preserving foodstuffs
Lactic acid fermentation is a chemical process in which sugars are converted into lactic acid and other products such as acetic acid and carbon dioxide. In order to carry out this reaction, the presence of lactic acid bacteria, which are commonly found in the environment, is required. Lactic acid fermentation is used not only in the food industry, but also in cosmetics, chemicals, and pharmaceuticals. Its main advantage is the extension of the shelf life of food products. It also allows for the production of products with specific desired taste and aroma properties. In order to carry out the process of lactic acid fermentation, it is important to consider the sugar and water content of the product. Another important factor is temperature, which should be between 15 and 20°C at the beginning of fermentation. An overly high temperature can lead to an overly rapid growth of bacteria and the development of undesirable microorganisms.
What products can be subjected to fermentation?
Numerous vegetables and fruits can be subjected to fermentation. In Poland, the most commonly found fermented products are sauerkraut and pickles. However, it is increasingly being observed that in stores, other fermented fruits and vegetables such as apples, pears, apricots, bell peppers, melon, cauliflower, beetroot, cucumbers, lemons are available. When selecting fermented products, it is important to remember that this process leads to softer foods, so it is advisable to choose the harder ones. Additionally, the food must be ripe and fresh. Various spices can be used for fermentation, such as dill, caraway, garlic, parsley, and chives. They will give the products a unique flavor and aroma.
Health advantages of fermented fruits and vegetables
Fresh fruits and vegetables are often referred to as natural probiotics. Their properties are appropriately selected, and their action is enhanced. In the case of lactic acid bacteria belonging to the genus Lactobacillus and Bifidobacterium, they can have a beneficial effect on the human body, but it should be borne in mind that their action is not the same as that of probiotic strains that are selected and documented. Fermented fruits and vegetables can have a positive effect on the human gut flora and should be included in the diet. Probiotics promote the absorption of vitamins and minerals. In addition, they can stimulate the production of some vitamins such as niacin, folic acid, and cobalamin. The lactic acid in fermented foods prevents constipation, alleviates diarrhea, and reduces the risk of osteoporosis. Fermented foods have a lower energy value than the initial product. Sugars are broken down into lactic acid, which leads to a reduction in the calorie content of the product. Fermented foods are rich in vitamins A, E, C, and B and minerals such as calcium, phosphorus, and iron. Fermented fruits and vegetables contain dietary fiber, which regulates digestion. Consuming fermented foods is particularly beneficial in winter when the supply of fresh fruits and vegetables is limited.
Fermentation – create it yourself
Components: – apples – 4 pieces, – previously boiled and chilled water – 2 glasses, – salt – ¾ tablespoons, – sugar – 1 tablespoon, – cloves – three pieces. Directions1. Thoroughly rinse the apples and cut them into four parts. 2. Thoroughly mix the water with salt and sugar. 3. Place the apples in a jar, add the cloves and pour the water over them. 4. Store the mixture at room temperature. The fermentation process should last 2–3 weeks. SuggestionFermented apples are an excellent addition to salads and raw vegetables. They can also be used as a side dish for meat dishes, such as goulash. Sauce made on their basis goes well with roasted meat.
Preserved and marinated beets
Ingredients: – beets – 5 pieces, – boiled and cooled water – 1½ cups, – salt – ½ teaspoon, – black pepper, grains – 2 pieces, – garlic – 2 cloves. Preparation method: 1. Wash and peel the beets. Remove hard parts and then cut into pieces. 2. Thoroughly mix water with salt. 3. Put the beets in jars, add peeled garlic and pepper. 4. Pour the previously prepared saline solution over the beets, close tightly and store in a dry place. 5. Store at room temperature until foam forms (4–7 days). 6. When foam forms, store the jars for 2–3 weeks in a cool place, e.g. in the basement. Tips: Pickled beets are an excellent component of salads and raw vegetable dishes. The juice obtained in the fermentation process can be used to prepare borscht. Beet juice can also be made in a juicer.
Guidelines for preparing fermented vegetables and fruits
1. Fresh vegetables and fruits should be chosen, whose time between harvest and fermentation should be as short as possible. 2. Thorough washing of vegetables and fruits is essential, as the microorganisms present on their surface can interfere with the fermentation process. 3. Glass containers or, if necessary, stoneware are the best choice for fermentation. 4. In cases of stone containers, the products should be carefully covered with a loaded jar or bottle of water and then covered with a towel or napkin. 5. The containers used for fermentation should be thoroughly sterilized. A oven can be used for this purpose, in which the containers should be heated at about 100°C for 25 minutes. After cooling, the containers should be used for fermentation. 6. All vegetables and fruits should be carefully covered with salt water. Insufficient covering can lead to the growth of mold.
Oliwia Kaczmarek
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