SEE THE SEA select & resort is a cafe and select shop at Umikaji Terrace on Senaga Island, Okinawa. We’d like to take a moment to tell you about the acerola we use on our menu — its nutrition, and the story behind it.
“Acerola” is not “Acerola” — How Okinawa Pronounces It
Let us start with the name.
In Japan, the fruit is most commonly written and pronounced acerola — a-se-ro-ra (アセロラ), four short syllables. But the proper botanical name is Acerola (Malpighia emarginata), and in Central and South America — its place of origin — people still pronounce it with a longer middle vowel: a-se-rō-ra (アセローラ). Okinawan growers preserve this original pronunciation, and we choose to spell it the same way — as a small mark of respect for the fruit and for the people who grow it.
It is a small detail, but we believe details like this carry the background of a thing.
The Real Story Behind Acerola’s Vitamin C
When you say acerola, most people think of vitamin C. That is not wrong — but few people know just how much.
According to Japan’s Ministry of Education, Culture, Sports, Science and Technology Standard Tables of Food Composition, the sour variety of acerola contains about 1,700 mg of vitamin C per 100 g. That is roughly 17 times more than a whole lemon, and about 34 times more than lemon juice. Compared to an orange, it’s about 28 times more. The numbers are almost hard to believe.
The fruit also contains anthocyanins — polyphenols that work alongside vitamin C to produce a strong antioxidant effect. That combination is the reason it is often called a “superfruit.”
Why Fresh Okinawan Acerola Never Reaches the Mainland
Despite all that nutrition, fresh acerola is almost never seen on supermarket shelves outside Okinawa.
The reason is simple. The skin is thin, the fruit spoils within about three days of harvest, and even refrigeration cannot extend that window. It does not survive shipping. So acerola travels the country as juice, puree, or jelly — processed forms that can outlast the journey.
Put the other way around: tasting fresh acerola is something you can only do in Okinawa, where it grows.
The Fact That Acerola Only Grows in Open Fields in Okinawa
Open-field acerola cultivation in Japan happens almost entirely in Okinawa Prefecture. The subtropical climate, the strong sunlight, the distinctive soil of Motobu Town — these conditions converge nowhere else in the country. Okinawa is considered the northern limit where acerola can be grown outdoors, in nature.
When a traveler drinks an acerola juice or smoothie in Okinawa, it is a glass that could only have been made here — climate, soil, and the hands of the people who grew it, all folded into that one red color.
Why acerola took root in Okinawa in the first place is a story for the next article.
Frequently Asked Questions
- Why does acerola only grow outdoors in Okinawa?
- Acerola is native to the subtropics and tropics and requires winter temperatures that stay above 10°C as well as ample sunlight. In Japan, only Okinawa's main island and parts of the southwestern islands meet these conditions for open-field cultivation. Even greenhouse growing is considered impractical on Honshu, Shikoku, and Kyushu.
- How much vitamin C does acerola contain?
- About 1,700 mg per 100 g — more than 30 times that of a lemon, and among the highest of any fruit used for juice. Acerola is also rich in polyphenols, folate, iron, and potassium, earning it the nickname "the small red fruit where nutrition is concentrated."
- How can I enjoy acerola at SEE THE SEA?
- SEE THE SEA select & resort, on the 4th floor of Senagajima Umikaji Terrace in Tomigusuku City, Okinawa, serves seasonal drinks and related menu items made with acerola. Open 11:00–21:00 (last order 20:30).