World Zucchini Day: Tips for Choosing and Preparing for Winter

      On August 8, the World Zucchini Day is celebrated — a crop that has long and firmly established itself in the gardens of Tatarstan. Experts from the Center for Competence in the Agro-Industrial Complex shared many interesting facts about zucchinis.

      From curiosity to national love

      On August 8, health food enthusiasts and simply lovers of vegetable dishes celebrate an unusual holiday — World Zucchini Day, one of the most popular varieties of zucchini. The history of this crop began more than five hundred years ago when Christopher Columbus's expeditions brought pumpkin seeds — distant ancestors of the modern zucchini — to Europe. However, for many years, the vegetable remained merely a botanical curiosity until Italian farmers in the late 18th century figured out how to harvest the fruits of the pumpkin when they were very small — tender, with thin skin and barely formed seeds. Thus, the famous name "zucchina" — young pumpkin — emerged. The history of this crop began more than five hundred years ago. Unlike Europe, where dark green zucchinis gained popularity, in Russia, white-fleshed and light green varieties — "Gribovskie," "Belogor," and others — became widespread. Today, zucchinis are grown everywhere: they are unpretentious, yield well in both open and closed ground, and produce a harvest even for novice gardeners. Health food advocates appreciate this vegetable for its low calorie content and rich set of beneficial elements, but the question of how to choose, store, and prepare zucchinis for winter remains open for many. Experts from the branch of the Federal State Budgetary Institution "Center for Competence in the Agro-Industrial Complex" in the Republic of Tatarstan shared recommendations that will help preserve all the valuable properties of this wonderful vegetable.

      Taste and color: how different types of zucchinis differ

      In stores and markets, you can find zucchinis of various shapes and shades. White ones are smooth, with thin skin and tender flesh; yellow and green ones are thick-skinned, with larger seeds. A separate variety is zucchini, a result of selection that differs in compact size, juicy dense flesh, and thin skin, explained Ildar Yakupov, head of the testing laboratory at the branch of the Federal State Budgetary Institution "Center for Competence in the Agro-Industrial Complex" in the Republic of Tatarstan. According to botanical canons, zucchini is considered a fruit since it grows from a flower and contains seeds for reproduction. Its closest relatives — cucumbers, pumpkins, pattypans, melons, and watermelons — all belong to the gourd family. When choosing zucchini in the store, experts advise paying attention to the age of the vegetable: the younger the zucchini, the better its taste qualities. You can determine youth by the thin but firm skin — it can be easily removed with a nail. Thick-skinned and large specimens should not be dismissed either: they last longer while preserving their beneficial properties. According to botanical canons, zucchini is considered a fruit since it grows from a flower and contains seeds for reproduction. When buying, it is important to inspect the surface of the fruit. Brown spots or a white coating indicate that the crop was affected by diseases during growth — this is not dangerous for humans but will negatively affect the taste. Cracks in the skin can lead to rapid rotting and spoilage of the product, specialists warn. For long storage, choose zucchinis without damage, with firm skin, and definitely dry — moisture promotes the development of mold.

      Storage tips: how to keep zucchinis fresh until winter

      The optimal temperature for storing zucchinis is up to +5°C; the place should be dry and dark. Like many vegetables, they are best preserved in a cellar or basement, where there are no sharp temperature fluctuations. Experts warn that zucchinis do not like to be near apples and pears, which emit ethylene — a gas that accelerates the aging of vegetables. Fresh zucchinis should be stored for no longer than two weeks. If the harvest is too abundant, the best way to preserve it is freezing. Before placing slices in the freezer, they should be blanched in boiling water or steamed, after which they can be used for soups or pancakes. In raw form, frozen zucchini will become too watery and lose structure, notes Ildar Yakupov. Zucchinis do not like to be near apples and pears, which emit ethylene — a gas that accelerates the aging of vegetables. Before cooking, young zucchinis should be thoroughly washed with a brush. For overgrown fruits, the skin is removed, and large seeds are scooped out with a spoon. The juice released during cutting can be frozen separately and used for sauces or cocktails — it is rich in nutrients and gives a refreshing cucumber flavor.

      Growing tips: how to get a healthy harvest

      For successful cultivation, zucchinis require loose, fertile soils with a neutral or slightly acidic reaction. They categorically do not tolerate acidic soils and areas with a high groundwater level. The fruiting process begins about a month and a half after the emergence of seedlings, and seed germination is possible at temperatures as low as +8 degrees. The main threat to zucchinis comes from squash flies and aphids, as well as powdery mildew. Whitish spots on the leaves are the first signal of a disease that rapidly affects the plants. An effective control strategy includes timely responses to the first symptoms and implementing protective measures. Special attention should be paid to preventing squash fly attacks: their larvae, which develop from eggs laid in the fruits, cause twisting and spoilage of zucchinis. The main threat to zucchinis comes from squash flies and aphids, as well as powdery mildew. For the health of the plants, comprehensive care is required: regular watering is especially important on hot days and during flowering and fruiting periods. While the bushes have not closed, the top layer of soil should be carefully loosened after each watering to prevent crust formation. The nutrition of zucchinis is similar to that of other gourds — organic fertilizers that provide the plants with all the necessary microelements are the optimal choice.

      How to choose quality zucchini caviar

      Zucchini is a "chameleon" product that pairs equally well with meat, fruits, garlic, and even vanilla. The ability to easily preserve it for winter has made this vegetable strategically important in every family, providing vitamins during the cold season. The most common method of preparation is zucchini caviar, a recipe that emerged in the Soviet years and peaked in popularity in the 1960s.

      When choosing ready-made caviar in the store, experts advise paying attention to the production date: a healthy and aromatic snack is made from fresh vegetables in summer or early autumn. Late dates indicate that the ingredients were frozen or used in pureed form. The second important indicator is the composition. According to GOST 2654-2017 "Canned Vegetable Caviar. Technical Conditions," there should be no foreign impurities in the caviar: only zucchini, carrots, onions, tomatoes, vegetable oil, salt, sugar, and spices. A healthy and aromatic snack is made from fresh vegetables in summer or early autumn. At home, when opening a jar, wait for the characteristic pop — it confirms the hermetic seal of the packaging. Quality caviar has a thick, homogeneous consistency and a specific aroma. If a slightly darkened layer has formed under the lid, this is acceptable — oxidation occurred due to oxygen in the jar. However, a bulging lid is a serious signal: bacteria that produce botulinum toxin may have developed inside. Such a jar should be discarded immediately.

      Safety control in the laboratories of the Center for Competence in the Agro-Industrial Complex

      In Russia, zucchinis are mainly grown by small farms and individual entrepreneurs. Minor volumes are supplied from Armenia, Belarus, Azerbaijan, Kazakhstan, and other countries. Before reaching store shelves, imported vegetables undergo thorough phytosanitary examinations to detect quarantine pests.

      Safety control in the laboratories of the Center for Competence in the Agro-Industrial Complex

      In the testing laboratories of the Federal State Budgetary Institution "Center for Competence in the Agro-Industrial Complex," specialists monitor the entire cultivation process — from the seed material to the quality of the finished product. Special attention is paid to the nitrate content, which can accumulate in vegetables due to a lack of moisture, light, heat, or the application of high doses of fertilizers. The acceptable concentration of nitrates in zucchinis is 400 milligrams per kilogram. Since the beginning of the year, no toxic substances or nitrates have been found in the vegetable products of this type that have been tested at the branch.

      What are the benefits of zucchini

      Zucchini is a low-calorie product: there are about 24 kilocalories in one hundred grams, making it popular among health food enthusiasts. The juicy fresh vegetable is rich in vitamins A, C, potassium, and folic acid. A large amount of fiber strengthens the digestive system and helps control weight. Antioxidants — zeaxanthin, lutein, beta-carotene — support the health of the skin, eyes, and heart. Zucchini is a low-calorie product.

      Zucchini consists of about 95 percent water and dietary fibers, which absorb toxins and eliminate them from the body, improve peristalsis, and positively affect the microflora. The dietary fibers are so tender that puree from this vegetable can be used for baby food. Due to its high potassium and water content, zucchinis help eliminate excess fluid, reducing swelling and easing the workload of the cardiovascular system.

      Interesting facts about zucchinis

      Regular consumption of zucchinis slows down the graying of