The onion, or onion bulb, is a pretty typical ingredient discovered in the kitchen and is evaluate for adding rich and also savory flavor come our dishes. It is a close relative of pungent vegetables favor garlic, scallions, and also leeks. What renders the onion especially is its ability to make people teary as soon as it is chopped. Just how does this small vegetable do this trick? The onion is created of water and a totality lot the compounds. The one responsible because that making united state cry is the compound propyl sulfoxide i beg your pardon escapes right into the air once the onion is sliced. When mixed with moisture, this compound turns right into sulphuric acid, a pungent substance that irritates our eyes and also make us teary.

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Do you understand that the onion we understand of today was not only provided for culinary functions through that history? ancient civilizations supplied onions as component of their religious rituals, too! continue reading this short article to know an ext about the history of the onion and its well-known uses. 

History that the Onion

Until today, the is not clear come archaeologists and also historians the specific time and also place of origin of the onion, although that is widely thought that the onion started being grew 5,000 years back in main Asia. It is just one of the earliest cultivated vegetables because it can be grown quickly on miscellaneous soil and climates and also is simple to transport since it does not perish easily as with other crops.

Aside from culinary purposes, the onion is known for its usage in art, medicine, and mummification. Ancient Egyptians considered the onion a prize of eternity and endless life, do it an important accessory in interment rituals and the renowned mummification process. 

During the Dark and Middle Ages, the onion was one of the primary food sources in Europe in addition to beans and also cabbage. The onion was much more valued than money as it was offered both together food and also as a medicine remedy. The Renaissance duration paved the method for the proliferation that the onion throughout the world. Some experts think that the onion is the an initial ever vegetables planted by colonizers that arrived in north America.

Where Onions are Grown

The onion is basic to flourish as it deserve to be planted on any type of soil, any type of climate, and also can be easily stored during any kind of season. It have the right to be grown mostly in the same regions where potatoes room planted. For best onion cultivation, fertile and also well-drained soils are recommended.

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


The onion is a good source of plenty of nutrients such as vitamin C, vitamin B6, folate, potassium, and also 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 that 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 v mild flavor. That is finest used because that homemade salsa and guacamole recipes, and as garnish for hamburgers.Red Onion. Red onion has deep magenta skin color and has a soft flavor. It is best used for salads, sandwiches and also burgers.Yellow Onion. Yellow onion is the most typical variant the onion. The is huge in dimension with light brown skin and mild flavor. It can be provided to prepare French onion soup. Pearl Onion. Pearl onion is a small, white-skinned onion through both mild and also sweet flavors. That is best used together garnish because that cocktails drinks like Bloody Mary and Martini.Sweet Onion. Sweet onion is a larged-sized onion v light brown skin and sweet flavor. It is finest cooked together onion ring and can additionally be caramelized.Shallots. This small-sized variant of onion is light purple in color and has an intense flavor. It is finest used because that salads and for sautéing. 

Popular Uses

The onion can be supplied for many purposes next from being a food. Below are the popular uses that onions:

Scar Remover. The onion have the right to be offered to eliminate scars and also can also be supplied for other skin conditions. Plant Protection. The onion deserve to be blended with water, garlic, pepper, and also soap flakes to produce a repellent that will certainly drive insects away from her plants. Paint Deodorizer. A key of water containing fresh sliced onions can absorb the smell of a brand-new paint in ~ a few hours. Mosquito Repellent. Rubbing one onion on your skin or eating it deserve to keep away those annoying mosquitoes. Soothing Insect Sting. The ede of skin led to by a punishment sting deserve to be remedied by placing a slice of onion top top the stung area.Acne Remover. To gain rid of negative pimples, you can mix crushed onions v water and apply it on your face. Wart Remover. The mixture of water, sliced onions, and crushed aspirin can also be used to shrink and also sooth warts. The mixture is used on the affected area and also left for hrs for far better results. 

Onions may have actually originated somewhere in east Asia, or perhaps in the area the is contemporary day Iran and also West Pakistan. They have been cultivated for 5000 year or more, and have uncovered their means into almost every cuisine.Onions might be eaten raw, fried, grilled, in soups, pickled, blanched, in pancakes, etc.

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How much does one onion weigh?

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

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