Clementine, satsuma, mandarin, or even “cuties” back in my hometown… all of these names (some mistakenly) are used to refer to a fruit that is almost as popular as apples in Japan. That fruit is called mikan (みかん). If you’ve spent any time in Japan during the winter season, you have undoubtedly come across this sweet little treat.
Take a drive through the Japanese countryside and you’re likely to come across individuals selling them by the bag on the roadside. Visit a public school at lunchtime on the right day, and you might catch a glimpse of the local children enjoying one of these fruits at the end of their meal. But why is mikan so widespread? What cultural significance does it hold within the hearts and minds of the Japanese? And where can you get the juiciest, sweetest of this fruit?
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What Makes Mikan So Special?
The mikan is a small, orange citrus with a high sugar content that makes it deliciously sweet. Unlike navel oranges, which can be frustratingly difficult to peel, mikan are reliably easy to remove from their thin skin without making a mess. Thanks to their lack of seeds, there’s no danger of unexpectedly biting down on one, either. Although you can find mikan year-round, their prime season runs from September to February, making them especially popular in the winter months. Their refreshing sweetness, coupled with high vitamin C content, makes them an excellent way to fight off colds during the chilly season.
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Officially known as unshū mikan (温州みかん), these orange orbs get their name from Wenzhou, China, a city that historically grew similar citrus fruits. However, there is debate over whether the mikan of today originated in China or Japan. According to one theory, citrus plants were brought to Japan from China, but the mutation that led to the modern seedless mikan occurred about 1,400 years ago in Kagoshima Prefecture. This region later became known as Satsuma during the Edo period, which is how the fruit came to be called “satsuma” when it was first introduced to Western countries.
Interestingly, mikan were not always popular in Japan. In the early Edo (江戸) period (1603–1868), their lack of seeds was symbolically linked to infertility, leading some to avoid them. However, in the late 18th century, proper cultivation methods were developed in Ehime Prefecture, and the fruit’s reputation began to improve. By the time Japan emerged from World War II, mikan had become a staple in the Japanese diet, prized for their sweetness and affordability.
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Mikan in Everyday Japanese Life
Today, mikan are widely available and inexpensive, making them a common household fruit. One of the places where mikan are most frequently enjoyed is Japanese school lunches. During winter, it is not uncommon for students to receive a fresh mikan with their meal for its vitamin C and immunity-boosting properties. Just two of the fruits give you a day’s worth of necessary vitamin C!
In summer, the fruit is often served in its frozen form, known as reitō mikan (冷凍みかん). First introduced during the Shōwa period (1926–1989), frozen mikan have remained a beloved school lunch treat. By the time they are eaten at the end of the meal, they have thawed just enough to be easily peeled, offering a popsicle-like texture. For children, it’s a refreshing and fun dessert—but for adults with sensitive teeth (like me), it can be a challenge!
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Outside of schools, mikan are equally easy to find. Take a drive around the Japanese countryside and you’ll see bags of mikan for sale at roadside stalls. Farmers and local sellers often use the honor system, leaving bags of mikan with a simple collection box where customers drop their payment. At the supermarket and department stores, you’ll find no shortage of options either. Mikan products, such as marmalades, cakes, and other sweet treats can be found easily.
As Part of Japanese Tradition
Beyond their everyday consumption, mikan also hold a special place in Japanese traditions. They are particularly significant in New Year’s celebrations, where they are placed on top of kagami mochi (鏡餅), a traditional rice cake decoration. This practice is said to bring good fortune for the year ahead.
Mikan are also associated with kotatsu culture. A kotatsu (こたつ) is a low table with a built-in heater and a thick blanket covering the sides, designed to keep people warm in the winter. Many Japanese people have fond childhood memories of sitting under the kotatsu, watching TV with family, and peeling and eating mikan. The combination of warmth from the kotatsu and the refreshing citrus flavor of mikan is a comforting winter tradition for many.
Mikan Picking
If you want to enjoy mikan at their freshest, mikan picking (みかん狩り) is a fun seasonal activity. Across Japan, especially in citrus-growing regions like Ehime, Wakayama and Shizuoka, farms allow visitors to pick and eat mikan directly from the trees. Many of these orchards offer all-you-can-eat experiences, where visitors pay a small entrance fee and can pick as many mikan as they like. It’s a great way to appreciate the fruit in its natural setting while enjoying Japan’s scenic countryside.
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Depending on the time of year you go, you might end up picking a different variety of mikan, so make sure to double check the kind you want to try is available! Regardless of which one you end up with, however, it will be delicious. Take a trip to Ehime on Shikoku (四国) island, the birthplace of the modern-day mikan, and get picking! With over 40 varieties, you’ll never get tired of going.
Here are some of the ones available and, thanks to greenhouse techniques, their extended seasons during which you may find them in this region.
| Type of Mikan | Harvest Season | Flavor Profile |
|---|---|---|
| Wase Mikan (早生みかん) | September – December | Early-season Mikan with a thin skin and high sugar content, making them very sweet and easy to peel. |
| Aoshima Mikan (青島) | December – February | Slightly larger and more tart than wase mikan, with a rich, balanced sweetness that develops as they ripen. |
| Beni Madonna (紅まどんな) | December – January | A premium mikan variety from Ehime Prefecture, known for its jelly-like texture and exceptional sweetness. |
| Unshū Mikan (温州みかん) | October – January | The most common type in Japan, with a perfect balance of sweetness and acidity, easy to peel, and seedless. |
| Iyokan Mikan (伊予柑みかん) | January – March | Larger and more tart than standard mikan, with a refreshing citrus aroma and slightly firmer texture. |
| Setoka Mikan (せとかみかん) | January – March | Ultra-sweet and fragrant, with a thin, smooth peel and almost no seeds, often considered one of the best-tasting varieties. |
| Harumi Mikan (はるみみかん) | February – March | A hybrid of mikan and dekopon, featuring a unique balance of sweetness and acidity with a juicy bite. |
| Shiranui Mikan (不知火みかん) | February – April | Also known as dekopon, a very sweet and juicy variety with a slight tang, recognized by its bumpy top. |
| Kiyomi Mikan (清見みかん) | March – April | A hybrid between mikan and oranges, offering a juicy, refreshing taste with a pleasant balance of sweet and tart flavors. |
| Amakusa Mikan (天草みかん) | March – April | Known for its strong sweetness and juicy flesh, often enjoyed as a high-end variety. |
Mikan may seem like a simple fruit, but its rich history, cultural significance, and role in daily life make it an essential part of Japan’s identity. Whether enjoyed fresh in the winter, frozen in the summer, or as a part of traditional New Year’s celebrations, this small but mighty citrus continues to bring warmth and joy to people across Japan. So next time you come across a bag of mikan, peel one open and experience the taste of a beloved Japanese tradition.
