Bluefin Tuna: Loin vs. Saku

A short guide for chefs and restaurant buyers deciding how to buy Bluefin for sashimi, nigiri, and crudo.

Most kitchens buying Bluefin choose between a whole loin and saku blocks. Both come from the same fish. The difference is how much of the work happens in your kitchen.

Fresh Bluefin Tuna loin

What is a loin?

A loin is one of the long, boneless sections cut from the fish along the backbone. Your kitchen trims it, takes off the skin and bloodline, and cuts it into blocks or portions. The belly side holds most of the fatty toro; the upper side is mostly lean akami.

  • Prep Your kitchen breaks it down
  • Trim Goes to spicy tuna, tartare, and rolls
  • Best for Sushi counters and kitchens with a skilled knife
Bluefin saku blocks

What is saku?

Saku is a rectangular block trimmed from a loin, with the skin and bloodline already removed. It’s ready to slice for sashimi and nigiri, so there’s nothing to break down.

  • Prep Ready to slice
  • Consistency Even blocks, simple portion control
  • Best for Busy kitchens and steady menu items

How to Choose

Choose a loin

You have a sushi chef or a skilled knife, you want to cut toro and akami your own way, and you can put the trim to work.

Choose saku

You want blocks that are ready to slice, less prep time, and the same portions every service.

Or use both

A loin for the sushi counter, and saku for steady menu items like crudo, poke, and seared dishes.

Bluefin We Carry

Fresh & Frozen

Our fresh Bluefin is #1 grade and comes as whole loins, from Mexico and Spain. Our AAA Branded Frozen Tuna line adds frozen Bluefin loins, saku, and ground tuna.

Loin vs. Saku: Common Questions

Is saku the same fish as a loin?

Yes. Saku is cut from the loin, so it’s the same fish. The difference is how much trimming is already done.

Do you sell fresh Bluefin saku?

Our fresh Bluefin comes as whole loins. Saku comes from our AAA Branded Frozen Tuna line.

Where does your Bluefin come from?

Our fresh Bluefin comes from Mexico and Spain.

How is Bluefin priced?

Bluefin pricing moves with the market, so we quote each order by product and quantity.

Delivery

Routes run from Santa Barbara and Bakersfield down through Los Angeles, the Inland Empire, and San Diego County. See delivery areas

Volume

Buying in larger quantities? Pallet orders are available. Learn more

Pricing

Bluefin pricing moves with the market, so we quote each order. Ask for a quote

Get Bluefin Pricing

Tell us whether you need loins or saku and how much, and our sales team will quote you.

Get a Quote