A Dark Reddish Sweet Potato.
Japanese Sweet Potato
Resources > Food > Vegetables > Sweet Potatoes > Japanese Sweet Potato

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The Japanese Sweet Potato is a dark red to purple, starchy variety. It has a white interior flesh and a sweet nutty flavor.

Availability

Japanese Sweet Potatoes are available year round.

Purchasing

When purchasing Japanese Sweet Potatoes look for Japanese Sweet Potatoes in the regular room temperature produce section. Pass by refrigerated Japanese Sweet Potatoes. The cold negatively impacts their flavor.

When selecting room temperature Japanese Sweet Potatoes look for ones that don’t have cracks bruises or soft spots and that are firm.

Storage

Japanese Sweet Potatoes do best stored in a well-ventilated, cool but not refrigerated, dark place. They should be stored loose (in a bin or bowl) away from any heat sources like the oven. If they must be bagged, avoid plastic bags, and poke a few air holes in the bag for circulation. Stored properly they can last up to 2-4 weeks.

Japanese Sweet Potatoes will Oxidize. To keep them looking good, keep the skins on until ready to cook or use. Once cooked serve quickly. If working ahead store the cut or peeled Japanese Sweet Potatoes in Acidulated Water to prevent them turning brown from exposure to the oxygen in air.

Culinary Uses

Japanese Sweet Potatoes taste terrific, and can be BoiledStir Fried, SteamedPuréedBakedMashedStuffedDeep Fried and Pan Fried. Basically, they are easy to work with and prepare and can be used in a multitude of dishes, including many that call for regular potatoes. Just keep in mind that the Japanese Sweet Potato will impart a little extra sweetness.

Boiling Japanese Sweet Potatoes has been shown to be a very healthy way to cook them, preserving the bio-availability of the beta-carotene, especially in children.  Boiling Japanese Sweet Potatoes also lowers the Glycemic Index (the amount of blood sugar in the blood stream) as compared to Roasting or Baking them.  The only drawback of boiling is that some of the water-soluble vitamins may leech off into the boiling water.

Portion Size

Allow 2-3 oz of Japanese Sweet Potato per person.

Pairings

BasilBay LeafCilantroParsleyCinnamonClovesCorianderCumin, Curry Powder, Dill, Nutmeg, PaprikaPepperSaltRosemarySageSugarBrown SugarTarragonVanilla, Apples, Bananas, Bell Peppers, Chile PeppersChives, Coconut, CranberriesGarlicGingerKaleLeeksLemonsLimes, Mushrooms, Onions, Oranges, Pears, Persimmons, PineapplePotatoes, Pumpkin, Tomatoes, Beans, Chestnuts,  HazelnutsPeanutsPecansWalnutsButterCreamCrème FraicheYogurtChickenDuck, Pork, Ham, BaconProsciutto, Bourbon, Brandy, Whiskey, Sweet Wines, MolassesHoneyOilsOlive OilPeanut OilSesame OilVinegarsBalsamic VinegarCider VinegarRice Wine VinegarWorcestershire SauceStocksChicken Stock

Nutritional Value USDA
SWEET POTATO,RAW,UNPREP
Amount Per 100g
Calories 86
%Daily Value*
 
0%
Total Fat 0g
0%
Saturated Fat 0g
Polyunsaturated Fat 0g
Monounsaturated Fat 0g
0%
Cholesterol 0mg
2%
Sodium 55mg
7%
Potassium 337mg
6%
Total Carbohydrate 20g
12%
Dietary Fiber 3g
Sugars 4g
Protein 1g
* Percent Daily Values are based on a 2,000 calorie diet. Your Daily Values may be higher or lower depending on your calorie needs.
Gluten Free

Yes

Low Fat

Yes

Low Calorie

Yes