The onion, or onion bulb, is a pretty usual ingredient uncovered in the kitchen and also is appreciated for including rich and also savory flavor to our dishes. It is a close relative of pungent vegetables choose garlic, scallions, and also leeks. What renders the onion extraordinary is its capacity to make world teary once it is chopped. Just how does this small vegetable carry out this trick? The onion is created of water and also a totality lot the compounds. The one responsible for making united state cry is the compound propyl sulfoxide i m sorry escapes into the air as soon as the onion is sliced. When mixed with moisture, this compound turns right into sulphuric acid, a pungent substance the irritates our eyes and make us teary.

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Do you understand that the onion we recognize of this particular day was no only supplied for culinary purposes through that is history? old civilizations supplied onions as component of their religious rituals, too! continue reading this write-up to know much more about the background of the onion and also its famous uses. 

History that the Onion

Until today, the is no clear come archaeologists and also historians the precise time and also place of origin of the onion, although that is widely believed that the onion started being cultivated 5,000 years ago in central Asia. It is among the earliest cultivated vegetables since it have the right to be grown quickly on assorted soil and climates and also is basic to transport because it does no perish easily as with other crops.

Aside native culinary purposes, the onion is well-known for its use in art, medicine, and also mummification. Ancient Egyptians taken into consideration the onion a price of eternity and endless life, do it an essential accessory in funeral rituals and also the famous mummification process. 

During the Dark and Middle Ages, the onion was one of the main food resources in Europe in addition to beans and also cabbage. The onion was much more valued than money together it was provided both together food and as a medicinal remedy. The Renaissance duration paved the means for the proliferation the the onion across the world. Part experts believe that the onion is the an initial ever vegetable planted through colonizers who arrived in phibìc America.

Where Onions are Grown

The onion is simple to flourish as it deserve to be planted on any soil, any climate, and can be conveniently stored during any season. It deserve to be grown largely in the same regions where potatoes space planted. For best onion cultivation, fertile and well-drained soils are recommended.

The united Nations estimates that at the very least 175 nations in the human being grown onions. Top top a worldwide scale, about 9.2 million acres of onions room harvested internationally every year. In 2017, the biggest producers the onions space China, India, and also United States.


The onion is a an excellent source of plenty of nutrients such together vitamin C, vitamin B6, folate, potassium, and manganese. Follow to FoodData Central, a 3.5-ounce onion contains:

Calories 40Water 89%Protein 1.1 gramsCarbs 9.3 gramsSugar 4.2 gramsFiber 1.7 gramsFat 0.1 grams

Types of Onions


Onions vary in shape, size and color. Below are the most typical varieties the onions:

White Onion. White onion is a medium-sized variant with mild flavor. The is ideal used for homemade salsa and also guacamole recipes, and as garnish for hamburgers.Red Onion. Red onion has actually deep magenta skin color and has a gentle flavor. That is ideal used for salads, sandwiches and burgers.Yellow Onion. Yellow onion is the most common variant the onion. The is huge in size with irradiate brown skin and mild flavor. It can be offered to prepare French onion soup. Pearl Onion. Pearl onion is a small, white-skinned onion through both mild and sweet flavors. It is ideal used together garnish because that cocktails drinks favor Bloody Mary and also Martini.Sweet Onion. Sweet onion is a larged-sized onion v light brown skin and sweet flavor. It is best cooked together onion ring and also can likewise be caramelized.Shallots. This small-sized variant of onion is light violet in color and also has an extreme flavor. It is finest used because that salads and for sautéing. 

Popular Uses

The onion deserve to be supplied for countless purposes beside from gift a food. Below are the renowned uses of onions:

Scar Remover. The onion deserve to be provided to eliminate scars and also can additionally be supplied for various other skin conditions. Plant Protection. The onion have the right to be combined with water, garlic, pepper, and also soap flakes to develop a repellent that will drive insects away from your plants. Paint Deodorizer. A bowl of water containing fresh sliced onions have the right to absorb the smell of a new paint within a few hours. Mosquito Repellent. Rubbing an onion on your skin or eat it can keep away those annoying mosquitoes. Soothing Insect Sting. The ede of skin brought about by a bee sting can be remedied by place a part of onion ~ above the i stabbed it area.Acne Remover. To get rid of poor pimples, you can mix crushed onions v water and apply it on your face. Wart Remover. The mixture that water, sliced onions, and crushed aspirin can also be offered to shrink and sooth warts. The mixture is applied on the impacted area and left for hours for better results. 

Onions may have originated somewhere in eastern Asia, or perhaps in the area the is modern-day day Iran and West Pakistan. They have actually been cultivated for 5000 years or more, and have uncovered their way into virtually every cuisine.Onions may be consumed raw, fried, grilled, in soups, pickled, blanched, in pancakes, etc.

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How much does an onion weigh?

Onion, White, Red, or Yellow
Large3″ come 3 3/4″ dia150g5.3oz
Medium2″ to 3″ dia110g3.9oz
Small1″ come 2″ dia70g2.5oz
Slice, Large(1/4″ special from medium onion)38g1.3oz
Slice, Medium(1/8″ special from tool onion)14g0.5oz
Slice, thin(from tool onion)9g0.3oz

Conversion from grams to ounce: 28.3495231g(rounded come 28.35)= 1 ozOunces displayed are rounded up or down to the nearest tenth of an ounce.