Tamasan Murasaki Imo Purple Sweet Potato Powder 100g is exactly one thing: purple sweet potato grown in Kagoshima, dried and milled to a fine powder. Nothing else is added. A small spoonful carries the vivid violet colour, gentle sweetness and earthy aroma of the whole vegetable into whatever you stir it through — milk and yogurt, or bread, cookie and cake batters — which is why it is a staple colouring in Japanese wagashi and home baking.
About Tamasan
Tamasan (玉三) is the consumer brand of Kawamitsu Bussan Co., Ltd. (川光物産株式会社), a Tokyo-based maker of Japanese pantry staples founded in 1887 that began as a rice-collection and sake business under the thirteenth-generation head of the Kawai family. It is best known in Japan for shiratamako (glutinous rice flour), kinako and katakuriko, produced across four factories in the Kanto region.
What is murasaki imo?
Murasaki imo (紫いも) is purple sweet potato — a sweet potato whose flesh is deep violet rather than pale yellow, the colour coming from anthocyanin pigments. In Japan it is treated as much as a colouring ingredient as a vegetable, turning up in wagashi, cakes, ice cream and Kyushu regional sweets, and it is grown particularly in the south, Kagoshima included.
How to use it — Tamasan's directions
Tamasan gives three methods on the pack. In milk: slake a slightly rounded tablespoon (about 5 g) in a little milk first, then make it up to 200 ml. In yogurt: about 5 g stirred through 100 g of yogurt. In baking: replace roughly 5% of the flour weight in bread, cookies or cakes. Tamasan also notes that egg white, baking powder and other alkaline ingredients will shift the colour, and that a little lemon juice counteracts it — the variation comes from the anthocyanin pigment itself and, in the maker's words, has no effect on the body. Reseal the bag after opening and keep it away from humidity.
Ingredients
Purple sweet potato (grown in Kagoshima Prefecture, Japan).
Allergens
For the allergen declaration, please refer to the product packaging.
Nutrition (per 100 g)
- Energy: 357 kcal
- Protein: 4.5 g
- Fat: 0.9 g
- Carbohydrate: 88.8 g — of which sugars 76.8 g, dietary fibre 12.0 g
- Salt equivalent: 0.1 g
- Anthocyanin: 470 mg
Important — please check the package label
While we make every effort to keep product information accurate and up to date, manufacturers may change formulations, packaging, allergens, ingredients, or specifications without notice. The actual product packaging is always the authoritative source. If you have specific concerns about allergens, ingredients, or any product detail, please contact us before purchase, or refer to the product packaging before consuming.
Single-ingredient Kagoshima purple sweet potato powder · 玉三 紫いもの粉100g · Tamasan wagashi-ingredient range.
