Very fresh firm with fantastic texture. The portion was generous and we enjoyed it in rolls and carpaccio. Will definitely chose this cut again.
Nordic Catch Premium Meat & Seafood Bundles Bundles are subject to substitutions...
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Nordic Catch
Wild-caught AAA sashimi-grade bigeye tuna saku block. Richer and more marbled than ahi, offering a buttery mouthfeel and clean finish for sushi and sashimi.
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Enjoy restaurant-quality sushi at home with our AAA Bigeye Tuna Saku Block. Cut from the best part of the loin, each saku is firm, meaty, and clean-tasting, ideal for sushi, sashimi, tataki, and poke.
Grade: AAA, sushi-grade
Texture: Firm, lean, and clean-grained for easy slicing
Flavor: Rich, meaty tuna taste without a strong “fishy” note
Hand-trimmed into uniform saku blocks for consistent slices, this tuna is perfect for home chefs who want high-end sushi-bar results.
One block goes a long way and makes plating clean, sharp, and photo-ready.
Both Bigeye and Yellowfin are popular for sushi and poke, but Bigeye shines when you want a richer, more premium experience.
Richer flavor: Bigeye typically has a deeper, meatier taste, while Yellowfin is milder and lighter on the palate.
More marbling: Bigeye often carries slightly higher fat content, giving it a silkier, more luxurious texture compared to leaner Yellowfin.
Color & presentation: Bigeye tends to have a deeper red color, ideal for sashimi and nigiri that need to stand out visually. Color retained by industry-standard tasteless smoke treatment.
Best use case: If you want elevated sushi-bar quality at home, Bigeye AAA is a step up from standard Yellowfin tuna loins.
Each saku block can range from 20-26oz, but typically averages 23oz.
Saku block is boneless and skinless.
AAA Grade for color and clarity, and a firm texture.
Thaw slowly for best texture! Recommended to thaw under refrigeration for 8 hours, or under ice water for 1-2 hours.
Sourced from fisheries rated ‘Best Choice’ or ‘Good Alternative’ by Monterey Bay Aquarium Seafood Watch.
Download report here!
Handling, Thawing & Serving
Keep frozen until ready to use
For best texture, thaw slowly in the refrigerator (overnight)
Pat dry before slicing for clean cuts
Use a sharp knife to slice across the grain for sashimi or cubes for poke
Once thawed, treat as fresh and consume promptly for best quality.
Thunnus obesus

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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Overall rating: 4.9 / 5 from 9 reviews.
Very fresh firm with fantastic texture. The portion was generous and we enjoyed it in rolls and carpaccio. Will definitely chose this cut again.
Tod H. 5/5 Verified
Perfect quality and just like good restaurant
Viktoriia K. 5/5 Verified
Fantastic! Will definitely be ordering again!
Christopher G. 5/5 Verified
Fantastic fish! The quality of the fish was incredible
Emily T. 5/5 Verified
The fish melted in mu mouth. Excellent quality
Carla D. 5/5 Verified
AWESOME!!!!
Judd P. 5/5 Verified
everything was easy and delicious
Stephen H. 4/5 Verified
The best. No comparison
Judd P. 5/5 Verified
High quality fish and service was better expected - very professional. I just placed my second order...very impressive. Thank you.
Patrick A. 5/5 Verified