> > > >

Bonito Tuna Flakes

Bonito Tuna Flakes ("Katsubushi" in Japanese) are pinkish-tan flakes of dried skipjack tuna.

The flakes are thin, weigh next to nothing and have a very fishy smell.

To make the flakes, the tuna is first boiled, then smoked, then dried in the sun in blocks, then shaved into the flakes, packaged and shipped.

Purists say that the best flakes are those you do at home yourself, freshly shaving them as you need them from a piece of dried tuna.

The flakes are great treats for cats, too (seriously.)

Konakatsuo is powdered Bonito Tuna Flakes. It can be used as a seasoning or topping.

Kezurikatsuo are larger, thicker shavings.

Hanakatsuo are smaller, thinner, almost transparent shavings.

Cooking Tips

Kezurikatsuo Bonito Flakes can be used to make Dashi by simmering them in some plain water; you don't boil the flakes in water for too long, though, or your dashi will be overly fishy tasting.

If you need a very fish-flavoured stock for other uses, even in Western cooking, you can make a quick fish stock with them -- the longer you simmer them, the more pronounced the fish flavour.

You can use the Hanakatsuo flakes as a garnish on dishes, such as a sprinkle of flakes over cooked vegetables, tofu or soup. Very small packages (about 3 g) of them are intended for garnish use.


1/3 cup = .15 oz / 4 g

1/2 cup = .2 oz / 6 g
1 cup = .4 oz / 12 g

Language Notes

Tosa, in Kochi prefecture in Japan, was known for its shaved bonito, so any food item with the word "tosa" in it can be expected to have something to do with shaved bonito.

Please share this information with your friends. They may love it.

Also called:

Katsubushi; Flocons de bonite (French); Katsuobushi (Japanese)

See also:


Akami; Bonito Tuna Flakes; Bonito Tuna; Bottarga; Chu–Toro; Hanakatsuo; Kezurikatsuo; Konakatsuo; O–Toro; Tuna Butter; Tuna Casserole; Tuna


You may also like:

Looking for home canning information?
Visit our satellite site dedicated to home canning, HealthyCanning.com for recipes and well-researched articles on all aspects of home canning.

Bon mots

"Turkey takes so much time to chew. The only thing I ever give thanks for at Thanksgiving is that I've swallowed it."

-- Sam Greene

Myth of the Day

Myth Picture Read more >