How Sweet Potatoes Saved Japan

S. J. Pajonas April 12, 2016
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True story! Learn more about the life-giving sweet potato and how it saved Japan! A post from THE DAYDREAMER DETECTIVE blog tour.

This post was originally published as a guest post during THE DAYDREAMER DETECTIVE blog tour! Haven’t read THE DAYDREAMER DETECTIVE yet? You can purchase it now!

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DaydreamerDetective_1_200x300In THE DAYDREAMER DETECTIVE, Mei returns home to her mother’s farm, broke and jobless, and just in time to help with the fall harvest. Her mom puts her to work picking sweet potatoes and Mei admits that they are her least hated vegetable. That’s because sweet potatoes have a long-standing place in the hearts of Japanese people and very nearly saved Japan from total starvation in the 18th century.

Back in the days of the samurai, Japan routinely went through famines caused either by poor weather or infestations. Many people died and the governments and lords of the time did their best to come up with alternate crops than rice to feed the people.

In 1732 crop failures and pests led to another famine, Great Kyoho Famine, and a call was put out to anyone who could help come up with a solution to the problem. Aoki Konyo, lovingly-known as Professor Sweet Potato, thought that farming sweet potatoes was the answer to Japan’s famine problems. At the time, they were grown in southern areas of Japan, closer to Okinawa, and bringing them to the north was not possible because they spoiled easily. Konyo worked tirelessly to develop a strain of sweet potato that could be farmed in the cooler climates of central and northern Japan. Resistant to bad weather, the sweet potatoes he developed have a high yield (one vine can grow six or more potatoes), grow in poor soil, and can be planted season after season. His first crop was in 1735, and Konyo attended to them himself. From then on, many farms in central and northern Japan grew an abundance of sweet potatoes that helped save the population from starvation.

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After Word War II, Japan rationed rice and sweet potatoes because there wasn’t enough to go around. So many people planted sweet potatoes wherever they could: school and home gardens, public parks, etc. Sweet potatoes were even hot on the black market! This was a time before transportation was used to bring food into the city so people took trains out to the countryside, where sweet potatoes were plentiful, just to buy them.

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Pictured above: a merchant in Kyoto (Hiyashi) sells roasted sweet potatoes!

In Japan, the sweet potato is called satsuma-imo. “Imo” (pronounced “EE-mo”) refers to all fleshy tubers that are grown in the ground like white and yellow potatoes, sweet potatoes, yams, and taro. The sweet potato is called satsuma-imo because it originally came from Satsuma Prefecture. Kagoshima, a port in Satsuma, often hosted sailing vessels from other nations and this is where the sweet potato is thought to have entered the country.

The Japanese love sweet potatoes! They can be roasted, boiled in a sweet soy sauce stock, made into tempura, or steamed and eaten on a cold winter day. I love teriyaki sweet potatoes over rice with nori. Oishii! Delicious! So next time you eat a sweet potato, remember how special they are to Japan and how even Mei enjoys digging them up in the fall.

Further reading on sweet potatoes: http://www.japantimes.co.jp/life/2011/11/25/food/sweet-dreams-of-a-childhood-winter-warmer

SJ Pajonas The Daydreamer Detective Blog Tour


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