




Purple Japanese Sweet Potatoes
Inventory, lb : 0
This item was last sold on : 03/28/23
Description/Taste
Japanese purple sweet potatoes are small to medium in size and are long, slender, and oblong in shape, averaging 10-12 centimeters in length and weighing around four ounces each. The tuber may be slightly curved, and both ends taper to a slender point. The thin, smooth skin ranges in color from red-brown, dark brown, to purple, and there are a few shallow eyes and root hairs present across the surface. The flesh is vibrant purple with some white and violet striations that disappear when cooked. Japanese purple sweet potatoes have a somewhat dry and starchy texture that becomes creamy when cooked and offers a mildly sweet taste with notes of chestnut.
Seasons/Availability
Japanese purple sweet potatoes are available in the early fall through winter.
Current Facts
Japanese purple sweet potatoes are botanically classified as Ipomoea batatas and are members of the Convolvulaceae or morning glory family. Also known as Murasaki Imo, which means “purple potato” in Japanese, there are several varieties of Japanese purple sweet potato including Purple Sweet Lord and Ayamurasaki. Japanese purple sweet potatoes are used in a variety of culinary applications including desserts and snack foods and are valued for their sweet flavor and high antioxidant content.
Nutritional Value
Japanese purple sweet potatoes contain dietary fiber, vitamins A and C, and minerals like calcium, magnesium, potassium, and zinc. The flesh also contains anthocyanin, a naturally occurring antioxidant that gives the tuber its purple hue.
Applications
Japanese purple sweet potatoes are best suited for cooked applications such as steaming and roasting. When boiled, they will lose their purple hue so to retain their vibrant color, they should be roasted or steamed. In Japan, they are commonly used in snack foods, juices, bread, and confectionaries, as well as in desserts like ice creams, pies, and cheesecakes. Japanese purple sweet potatoes are also popular for Imo Yokan, a Japanese jelly cake made with sweet potato, agar, and sugar. Japanese purple sweet potatoes are commonly dried and turned into powder for use as a natural food coloring. They will keep up to two weeks when stored in a cool, dark, and dry place.
Ethnic/Cultural Info
All varieties of sweet potato are valued in Japan as a healthy starch and are used in a range of applications. A popular traditional alcoholic beverage in Japan called Imo-shochu is derived from sweet potatoes and involves steaming the tuber and mashing it in with a rice, yeast, and water mixture. It is then fermented and distilled to create the alcoholic beverage. Versions of the drink made with Japanese purple sweet potatoes offer tasting notes of wine and yogurt.
Geography/History
The first sweet potatoes were brought from China to Japan in the 1600s and have been a staple food since the 1700s. Japanese purple sweet potatoes have been propagated since the 1980s and are the result of careful breeding. Today they are commonly grown in the Kagoshima and Kyushu Prefectures in Japan. Japanese purple sweet potatoes can be found in specialty markets in the United States and Japan, though availability may be limited.
Recipe Ideas
Recipes that include Purple Japanese Sweet Potatoes. One

Recently Shared
People have shared Purple Japanese Sweet Potatoes using the Specialty Produce app for iPhone and Android.
Produce Sharing allows you to share your produce discoveries with your neighbors and the world! Is your market carrying green dragon apples? Is a chef doing things with shaved fennel that are out of this world? Pinpoint your location annonymously through the Specialty Produce App and let others know about unique flavors that are around them.
![]() About 70 days ago, 3/26/23 Sharer's comments : ubi baby jepang ungu ![]() ![]()
Specialty Produce
Near San Diego, California, United States1929 Hancock St Suite 150 San Diego CA 92110 619-295-3172 https://specialtyproduce.com About 84 days ago, 3/11/23 Sharer's comments : Purple Japanese Sweet Potatoes from Fresno Evergreen ![]() ![]()
Fresno Evergreen
Near Santa Monica, California, United StatesAbout 94 days ago, 3/01/23 Sharer's comments : Purple Sweet Japanese Potatoes from Fresno Evergreen ![]() About 99 days ago, 2/24/23 ![]() ![]()
Specialty Produce
Near San Diego, California, United States1929 Hancock St Suite 150 San Diego CA 92110 619-295-3172 https://specialtyproduce.com About 126 days ago, 1/28/23 Sharer's comments : Purple Sweet Potatoes from Fresno Evergreen ![]() About 156 days ago, 12/29/22 Sharer's comments : ubi ungu jepang ![]() About 175 days ago, 12/10/22 Sharer's comments : Japanese Purple Sweet potatoes at Cold Storage grocery Singapore ![]() About 177 days ago, 12/09/22 Sharer's comments : Japanese sweet purple potatoes at Isetan grocery Singapore ![]() ![]()
Specialty Produce
Near San Diego, California, United States1929 Hancock St Suite 150 San Diego CA 92110 619-295-3172 https://specialtyproduce.com About 195 days ago, 11/20/22 Sharer's comments : Purple Sweet Potatoes from Her Produce ![]() About 201 days ago, 11/14/22 ![]() About 223 days ago, 10/24/22 Sharer's comments : Purple Sweet Potatoes at Union Square Green Market from Lani's Farm New York ![]() ![]()
DON DON DONKI 西門店
Near Zhongzheng District, Taiwan108, Taiwan, Taipei City, Wanhua District, Xining Rd, 123號1~3樓 https://dondondonki.com About 229 days ago, 10/18/22 ![]() ![]()
Fresno Evergreen
Near Santa Monica, California, United StatesAbout 238 days ago, 10/08/22 ![]() ![]()
Fresno Evergreen
Near Santa Monica, California, United StatesAbout 252 days ago, 9/24/22 ![]() ![]()
Specialty Produce
Near San Diego, California, United States1929 Hancock St Suite 150 San Diego CA 92110 619-295-3172 https://specialtyproduce.com About 265 days ago, 9/12/22 Sharer's comments : Purple Sweet Potatoes from Her Produce ![]() ![]()
Specialty Produce
Near San Diego, California, United States1929 Hancock St Suite 150 San Diego CA 92110 619-295-3172 https://specialtyproduce.com About 279 days ago, 8/28/22 Sharer's comments : Purple Sweet Potatoes from Her Produce ![]() ![]()
Hamlow Ranches
Near La Jolla, California, United StatesPO Box 898, Denair, CA 209-664-1447 About 433 days ago, 3/27/22 ![]() ![]() About 461 days ago, 2/27/22 Sharer's comments : Purple Japanese Sweet Potatoes from Fresno Evergreen ![]() ![]()
Hamlow Ranches
Near La Jolla, California, United StatesPO Box 898, Denair, CA 209-664-1447 About 510 days ago, 1/09/22 Sharer's comments : Lore says these purple sweet potatoes have been used to treat diabetes in Japan. Purple outside and in - they are beautiful! ![]() ![]() About 545 days ago, 12/05/21 Sharer's comments : Purple Sweet Potatoes from Her Produce ![]() ![]()
Hamlow Ranches
Near Encinitas, California, United StatesPO Box 898, Denair, CA 209-664-1447 About 594 days ago, 10/17/21 Sharer's comments : #1 seller, packed with health benefits and still purple when cooked!! ![]() ![]()
Rodriguez Family Farms
Near Encinitas, California, United StatesSan Diego, CA About 622 days ago, 9/19/21 Sharer's comments : Eat these sweet potatoes everyday… with hummus! ![]() ![]()
Hamlow Ranches
Near La Jolla, California, United StatesPO Box 898, Denair, CA 209-664-1447 About 664 days ago, 8/08/21 Sharer's comments : One cup of this sweet potato contains 2g protein and half your daily dose of Vitamin C! |