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Katsuobushi sits with the Japanese dry goods, not the fresh fish counter, so look for a small bag rather than anything chilled.
Which aisle is katsuobushi in?
In a Japanese or Asian grocer it is shelved with dashi ingredients, next to kombu and instant dashi powder. Large supermarkets rarely stock it, so a specialist shop or online order is the practical route.
Where to look
- Japanese grocers. Shelved with kombu and dashi powder.
- Asian supermarkets. Often carry a general fish flake version, check the label for pure bonito.
- Online specialist shops. The most reliable source and usually the widest choice of flake thickness.
Katsuobushi vs kombu vs instant dashi powder
| Product | What it is | Use it for |
|---|---|---|
| Katsuobushi | Dried bonito flakes | Dashi, garnish |
| Kombu | Dried kelp | Dashi, vegetarian stock |
| Instant dashi powder | Pre-mixed granules | Fast stock, no simmering |
Buying it online
Since fresh availability is patchy, online is often the easiest route, and a sealed bag keeps its flavour well until opened.
Frequently asked questions
Can I use instant dashi powder instead?
Yes, it is a fast substitute for a quick stock, though the flavour is less rounded than dashi made from real katsuobushi.
How should katsuobushi be stored?
In a sealed bag in a cool, dark cupboard, and used within a few months of opening for the best flavour.
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- Bonito flakes. For dashi and garnishing.
