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Chili pepper

life science Maturity 9-11 Next article →

Chili peppers are small, bright fruits that people use to add spice to food.

Madame Jeanette and other chillies
Madame Jeanette and other chillies

These fruits belong to the genus Capsicum. They are part of the nightshade family. People grow them for their special heat, which is called pungency. This heat can change how food tastes in many different cultures. You can find them in many forms, like powders or sauces.

Chilli pepper 4
Chilli pepper 4

The spicy feeling comes from a chemical called capsaicin.

Capsicum clip art
Capsicum clip art

The plant makes this to protect itself from mammals. When humans eat them, capsaicin binds to pain receptors in the mouth and throat. This makes the brain feel heat and discomfort. Interestingly, birds cannot feel this heat at all. This allows birds to eat the peppers and spread the seeds.

Black Pearl - Ornamental Pepper
Black Pearl - Ornamental Pepper

Chili peppers have a very long history in the Americas. They first grew in places like modern-day Peru and Bolivia. People have eaten them since about 7,500 BC. This makes them one of the oldest crops in the Americas. In east-central Mexico, people were growing them 6,000 years ago. Peru is a special place because it has so many different types of peppers.

Leiden University Library - Seikei Zusetsu vol. 25, page 019 - 蕃椒 - Capsicum annuum L., 1804 (cropped)
Leiden University Library - Seikei Zusetsu vol. 25, page 019 - 蕃椒 - Capsicum annuum L., 1804 (cropped)

European explorers found these fruits in the Caribbean. Christopher Columbus and his crew were the first Europeans to see them. They called them "peppers" because they tasted hot like black pepper. The Spanish brought them back to Europe during the Columbian Exchange. By the mid-1500s, peppers were common in Spanish gardens. Traders later took them to Africa and Asia. This helped them spread to places like India and China.

Capsicum -Chili - Peperoncino - Il Viagra Calabrese - Calabria - Italy - July 17th 2013 - 02
Capsicum -Chili - Peperoncino - Il Viagra Calabrese - Calabria - Italy - July 17th 2013 - 02

There are many ways to measure how hot a pepper is. A man named Wilbur Scoville created a scale in 1912. It is called the Scoville heat unit, or SHU. A bell pepper has 0 SHU, so it is not spicy. A Cayenne pepper is much hotter, with 30,000 to 50,000 SHU. Some peppers are incredibly strong, like the Pepper X from the United States. It has a rating of 2.69 million SHU.

Madame Jeanette and other chillies
Madame Jeanette and other chillies
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🖼️ Images & Media (6)
File:Madame Jeanette and other chillies.jpg
Madame Jeanette and other chillies.jpg
File:Leiden University Library - Seikei Zusetsu vol. 25, page 019 - 蕃椒 - Capsicum annuum L., 1804 (cropped).jpg
Leiden University Library - Seikei...
File:Capsicum clip art.png
Capsicum clip art.png
File:Chilli pepper 4.svg
Chilli pepper 4.svg
File:Black Pearl - Ornamental Pepper.JPG
Black Pearl - Ornamental Pepper.JPG
File:Capsicum -Chili - Peperoncino - Il Viagra Calabrese - Calabria - Italy - July 17th 2013 - 02.jpg
Capsicum -Chili - Peperoncino - Il Viagra...
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