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by Julia LiMarzi June 15, 2018

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Welcome to the essential guide to all things Japanese citrus! Since our July theme is “Citrus Refresh", I felt it was important to introduce you to the wide world of Japanese citrus.

Japan has over 25 varieties of citrus. I know, it’s a lot. While many citrus varieties are popularly eaten raw, citrus is also a common flavoring in both savory and sweet foods in Japan. Two classic examples would be Ramune, a popular lemon-flavored fizzy drink, and  ponzu, a Japanese citrus sauce. Citrus is especially popular in summer for its cooling sensation. Juicy and refreshing, it’s a great pick-me-up on those hot muggy Japanese summer days when everyone is battling natsubate (夏バテ, summer fatigue).

Today we want to introduce you to commonly known Japanese citrus, rarer citrus we’re featuring in our snacks, and some … interesting others. Let’s do this!


via GIPHY

The Roots of It

Almost all citrus are descended from a few ancestral species, the most well-known of which are the Mandarin, Citron, Pomelo, and the Australian and Papuan Wild Limes. Cross-breeding, time, and geographic spread have contributed to the staggering diversity of citrus we see today. Citrus fruits are known to be rich in flavonoids and Vitamin C.They are also popular year-round with both Winter and Summer varieties.

Japan’s geography has a wide range of climates, from snowy Hokkaido to Tropical Okinawa, and certain regions have been particularly fruitful for citrus growth (pun, absolutely intended). The region known as Setonaikai in Japanese has the perfect climate for citrus. Setonaikai is the Seto Inland Sea, and the land surrounding it on the edges of Honshu, Kyushu, and Shikoku make up its coast. Now, on to the fruits!

Setonaikai
Setonaikai

 

Feeling Fresh and Fruity

 

Mikan

Peeled Mikan

The Mikan is the most popular citrus in Japan, and is a common remedy to natsubate. It’s a hybrid of a mandarin and a pomelo native to Japan, with a higher percentage of pomelo DNA (about 22%) than most hybrids. It is sweet, seedless, and peels easily. It’s also been called Cold Hardy Mandarin, Satsuma Mandarin, Satsuma Orange, and Tangerine (a broad term applied to many Mandarin/Pomelo hybrids) in English. It is native to Kagoshima Prefecture (formerly called Satsuma), the southernmost prefecture of Kyushu, but is mostly grown in Ehime and Wakayama, both in the region of Setonaikai. Its peel makes a wonderful addition to tea, brightening the flavor and adding a wonderful fragrance. Try it in our Satsumarche Komikan Tea!

 

Iyokan

Iyokan on Tree

This is the second most widely cultivated citrus fruit in Japan after the Mikan. It is a cross between a Dancy Tangerine and another Mandarin variety, with a thicker peel than a Mikan and a more tart, bitter flavor, but still more sweet than a grapefruit. The flesh has an impressive fragrance when peeled. Its great flavor is part of why we made sure to get out hands on some Iyokan Mandarin Orange Kit Kats this past Spring! Today, 80% of Iyokan cultivation happens in Ehime prefecture.

 

Yuzu

Yuzu in Basket

Yuzu has been making a name for itself on the global culinary scene, popping up in cocktails and many an adventurous baker’s Instagram. It’s a versatile fruit with good tang and sweetness, and is mainly used for its zest and juice, which are similar to a grapefruit in flavor, with hints of mandarin orange. It grows wild in Tibet and central China but is most widely cultivated in South Korea and Japan. We love it for its wonderful aroma and the intense flavor it imparts, which is why we chose 3 Yuzu-flavored snacks for our July 2018 Bokksu: Handmade Yuzu CandyOlive Oil Senbei Yuzu Pepper, and Satsumarche Yuzu Ryoku Tea.

 

Shiquasa

Shiquasa on Udon

This very tart fruit is native to the Ryukyu island chain (which includes Okinawa) and Taiwan. It is green when young and turns yellow when ripe, and its unique tart flavor makes it an interesting alternative to lemon and lime for garnishing and flavoring. Its potent flavor partners with salt and soy sauce in this addictive Mini Fried Rice Cracker Shiquasa Salt.

 

Hyuganatsu

Hyuganatsu

Hyuganatsu is a sweet, juicy citrus variety often eaten raw the way a grapefruit would, cut in half and maybe with sugar sprinkled on top. It is light yellow in color and about the size of an orange. Like the mikan, it is a refreshing way to stave off natsubate, which is why we added Hyuganatsu Jelly to the “Citrus Refresh” Classic Bokksu. There are theories that the variety stems (haha, more plant puns) from a mutated Yuzu, or a chance cross of a Yuzu and Pomelo.

 

Kabosu

Kabosu

This sharp citrus variety is closely related to the Yuzu but has the tart bite of a lemon. It’s often used in Japanese food as an alternative to vinegar on dishes like sashimi, cooked fish, and hot pot. It is mainly grown in Oita Prefecture, where certain regions are home to 200 and 300 year-old trees! Outside of Oita it can be a little pricey and is regarded as a delicacy.

 

Bushukan

Bushukan, Buddha's Hand Fruit

This is probably the weirdest citrus fruit you will ever see! Its name in Japanese (and Chinese, Korean, and Vietnamese) translates literally to “Buddha’s Hand” because of its fingerlike tendrils of citrus that look like an open hand when ripe. It’s mostly prized for its fragrance, and the unripe “closed hand” is given as an offering in Buddhist temples as a symbol of prayer. It has very little pulp and juice, so it isn’t popular for eating, but the zest can be used to add flavor to many dishes or candied as a sweet snack.

 

These are just a handful of Japan’s citrus fruits, let alone all the other fruits they’ve become known for (square watermelon anyone?). Unfortunately, many of these fruits aren’t available in the US (yet, fingers crossed), so you’ll have to find another way to battle your natsubate. We recommend long naps, kakigori (shaved ice), and our “Citrus Refresh” Bokksu (obviously)!

Julia LiMarzi
Julia LiMarzi

Julia has two passions in life: traveling and food. She fell in love with Japan during her first trip to Tokyo and studied Japanese in college. She loves all things Studio Ghibli, Harry Potter, or Lord of the Rings, and spends her free time baking or reading.


1 Response

Dani Bastien
Dani Bastien

July 05, 2018

Cool article. Every summer I suffer from heat exhaustion (or natsubate), so I’m always looking for ways to survive the summer. Hopefully one day all of those delicious-looking Japanese citrus fruits will make their way to where I live in Canada and I’ll get to try them. Until then, I’ll dig into my July Bokksu box and dream of the day when I get to taste these citrus fruits in person. :)

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