Hoshino Natural Bread Starter is a traditional Japanese bread starter made using brewing-inspired fermentation methods with naturally collected yeast, Japanese wheat, rice, koji, and water.
Founded in 1951, Hoshino describes this as one of its long-trusted signature products, valued for bread with a moist, chewy texture and a deep, fragrant flavour. It can be used across a wide range of breads, including sandwich loaves, sweet buns, French-style breads, and pastries, and it is especially appealing for bakers who enjoy taking more time to build flavour.
For bakers exploring shokupan, café-style buns, or naturally expressive homemade bread, it offers a distinctly Japanese fermentation character rooted in rice and koji culture.
Japanese product name: ホシノ天然酵母パン種
Best for
- Shokupan and sandwich loaves
- Sweet buns and enriched breads
- French-style breads
- Rustic country loaves
- Pastries and other flavour-forward breads
Features
- Traditional Japanese bread starter with a brewing-inspired fermentation process
- Made with naturally collected yeast, Japanese wheat, rice, koji, and water
- Helps create bread with a moist crumb, gentle chew, and fuller aroma
- Suitable for a broad range of breads, from everyday loaves to pastries
- A long-trusted product from a Japanese company founded in 1951
Good to know
This is not an instant yeast. Before baking, you first prepare a live starter by mixing the bread starter into warm water at about 30°C, then letting it ferment at about 28°C for 24 hours. Once ready, the starter should be refrigerated, stirred before use, and used within about 1 week. Hoshino notes that this extra step is part of what helps create the characteristic aroma, texture, and depth of flavour.
Why bakers choose it
Hoshino is a great option for bakers looking for a more traditional Japanese approach to bread fermentation. Its rice-and-koji base gives it a distinctive identity, while the slower starter process makes it especially attractive to those who enjoy breadmaking as a craft rather than simply the fastest route to a finished loaf.
Storage
Store airtight in the refrigerator. After preparing the live starter, keep it refrigerated and use within 1 week.
Origin
Product of Japan.
At Gusta Supplies, we endeavour to secure hard-to-source ingredients and tools so the community here can enjoy a tasteful selection. We are particular about the origin of these products in respect to its cultural and technological significance. We want you to use only the best we can afford to provide.
Inventory Last Updated: Jun 04, 2026
