Wild caught and frozen at sea for sushi-grade enjoyment!

  • Wild Bluefin Tuna Sushi Saku Block, AAA Grade - Nordic Catch
  • Hand slicing raw ahi tuna with Nordic Catch branded knife on textured surface creating thin sashimi slices
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Nordic Catch

Wild Bluefin Tuna Akami Saku Block - Sushi-Grade Lean Bluefin

Wild Bluefin Tuna Akami Saku Block - Sushi-Grade Lean Bluefin

Our wild-caught bluefin tuna akami saku block is cut from the lean loin of the fish and prized for its deep red color, clean flavor, and firm texture. A classic sushi and sashimi cut that delivers purity and precision—without the richness of toro.
$45.00
$45.00
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Size
  • Sushi-Grade seafood, perfect for sashimi or poke!
  • Highly sustainable option, see product description!
  • Saku and poke cubes can be frozen for up to 6 months!

Our Wild Bluefin Tuna Akami Saku Block is cut from the lean loin section (akami) of wild-caught bluefin tuna and trimmed into a traditional saku block for sushi and sashimi preparation.

Akami is the most classic and widely used bluefin cut in sushi bars, valued for its deep ruby color, clean ocean flavor, and firm texture. Unlike fattier bluefin cuts, akami delivers a pure, focused tuna experience that highlights freshness and technique rather than richness.

This saku block gives you complete control over slice thickness and presentation—ideal for sashimi, nigiri, or crudo. It’s a refined, everyday sushi cut that performs consistently and cleanly.

Akami vs Otoro: What’s the Difference?

Bluefin tuna offers several distinct cuts, each with its own character:

Akami (This Product)

Cut from the lean loin

Deep red color

Clean, mild tuna flavor

Firm texture

Ideal for sushi, sashimi, and everyday raw preparations

Otoro (Our Premium Cut)

Cut from the fattest belly section

Pale pink with heavy marbling

Ultra-rich, buttery mouthfeel

Considered a luxury, indulgent experience

If you’re looking for purity and balance, akami is the traditional choice.
If you’re seeking maximum richness and indulgence, our Bluefin Otoro is the upgrade.

Both cuts serve different roles—and neither replaces the other.

Why Choose Bluefin Akami?

Akami is preferred when you want:

Clean, focused tuna flavor

Precise slicing and presentation

Less fat, more structure

A traditional sushi experience

It’s the backbone of classic sushi menus worldwide.

How to Enjoy

Slice against the grain for sashimi

Perfect for nigiri and hand rolls

Serve chilled with minimal seasoning

Best enjoyed raw to appreciate texture and color

Product Details

Species: Bluefin Tuna

Cut: Akami (lean loin)

Format: Saku block

Harvest Method: Wild-caught

Grade: Sushi / Sashimi grade

Condition: Frozen to preserve quality

Packaging: Vacuum sealed

Storage Instructions

Keep frozen until ready to use

Thaw slowly under refrigeration

Consume promptly after thawing

Portion per pack

When cutting Bluefin Tuna, there can be large variance in weight from piece to piece.
We offer 2 sizes that average 14oz or 20oz per piece.

Saku block is boneless and skinless.

Grading

This tuna has not been graded since it is produced in mass quantities to keep prices low. Ungraded tuna does not indicate lesser quality, just a different purpose.

Check out our FRESH ahi tuna steaks for a super premium option for sashimi!

Certification

The International Seafood Sustainability Foundation (ISSF) has determined that although fish stocks of Southern Bluefin Tuna are low, it is not currently being overfished due to the strict regulations being enforced.

Download the ISSF's most recent report: Status of the World Fisheries for Tuna for detailed information!

Download report here!

Cooking tips

Remove from plastic, thaw slowly (like overnight in the refrigerator).
Slice for sushi, or dice in cubes for poke!
Try it with our poke sauce!

Species Name

Thunnus maccoyii (Southern Bluefin Tuna)

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Tuna Species Guide

Nordic Catch offers several premium tuna species for sushi, sashimi, and grilling.

Different tuna varieties offer unique flavor and texture profiles. Here's how the most popular sushi-grade tuna compare.

Tuna Type Flavor Texture Best Use
Yellowfin (Ahi) Clean, mild ocean flavor Firm and lean Searing, grilling, poke bowls
Bigeye Tuna Richer and slightly buttery Softer with more fat Sashimi, sushi, nigiri
Bluefin Toro Extremely rich and buttery Very fatty and melt-in-your-mouth Premium sushi and sashimi

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