Ahi Tuna Saku

Ahi Tuna Saku

8 oz. block, sashimi-grade yellowfin | Product #FYT801

Considered the filet mignon of tuna, our premium ahi saku is a uniformly precision-cut portion of center-cut tuna loin, perfect for making sushi, sashimi, and tataki.

Individually line-caught by small-scale fisheries in Indonesia, this Sustainably caught tuna meets rigorous standards of resource management, human rights and working conditions.

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Number of 8oz (avg.) Blocks
Ahi Tuna Saku 8 oz. block, sashimi-grade yellowfin
$ 17.00 New in stock
Ahi Tuna Saku 8 oz. block, sashimi-grade yellowfin
$ 49.00 New in stock
Ahi Tuna Saku 8 oz. block, sashimi-grade yellowfin
$ 89.00 New in stock
Ahi Tuna Saku 8 oz. block, sashimi-grade yellowfin
$ 149.00 New in stock


  • Wild, individually line-caught
  • Sushi/sashimi-grade
  • 8 oz blocks on average
  • Boneless, skinless
  • Center cut, bloodline and sinew removed
  • Individually vacuum-packed
  • Rated “Green / Best Choice” by Monterey Bay Aquarium’s Seafood Watch
  • Product of Indonesia

Considered the filet mignon of tuna, our premium ahi saku is a uniformly precision-cut portion of center-cut tuna loin, perfect for making sushi, sashimi, and tataki. Individually line-caught by small-scale fisheries in Indonesia. Because the freezing process renders tuna safe to serve raw, our saku blocks are perfect for making raw-fish delicacies, such as:

You’ll find storage and thawing instructions under our Serving/Care tab, and suggested recipes under our Recipes tab. (Recipes for albacore tuna will work very well with yellowfin tuna.)

About ahi (yellowfin)

Known also as yellowfin (Thunnus albacares), our ahi saku comes from an artisanal Indonesian fishery in the Western Central Pacific Ocean, earned a Green/Best-Choice ranking from the Monterey Bay Aquarium Seafood Watch program.  The delicious flesh of these torpedo-shaped, highly migratory fish is highly prized for sashimi and sushi

Yellowfin tuna present a striking appearance, with dark, metallic-blue backs, yellow sides, very long fins, silver bellies, and bright yellow “finlets”. Found throughout the Pacific, Atlantic, and Indian Oceans, yellowfin tuna form schools with other tuna species, like skipjack and bigeye.

A dolphin-safe fishery

Our yellowfin tuna comes from a sustainable Indonesian hand-line fishery that protects dolphins as it delivers top-quality tuna. Unlike their Indonesia-area counterparts, yellowfin tuna (Thunnus albacares) in the eastern tropical Pacific often mingle with dolphins.

In the past, many dolphins drowned in tuna nets off Mexico and southern California. Thanks to stricter U.S. regulations, many fewer dolphins (about 1,000 annually) now die in that region.

Why is our yellowfin tuna red rather than brown?

Yellowfin sold in the U.S. is often exposed to synthetic carbon monoxide (CO) gas. Exposure to CO gas preserves tuna’s natural reddish-pink color, but will also make old fish appear fresher than it is, because tuna treated with CO stays red even after it spoils.

Instead of synthetic CO gas, our tuna is exposed to filtered, flavorless smoke from certified-pure hardwoods. This preserves the tuna’s natural reddish-pink color, but it cannot mask old fish, because smoke-treated tuna will turn brown long before it begins to spoil.



Monterey Bay Aquarium Seafood Watch. Yellowfin Tuna.

National Oceanographic and Atmospheric Administration (NOAA). The Tuna-Dolphin Issue. 9/2/2016.

Average Ratings: 5

"Excellent shipping and product" Tiger on 05/08/2020 19:12 Review: They ship in dry ice package, nice quality and taste great

"Excellent" Jackson on 03/10/2019 13:26 Review: These are perfect and delicious.

"Good product, OK packaging" Ryan Schroeder on 02/13/2019 07:46 Review: This is perfect for sashimi/sushi. It comes in a perfect block so cutting and portioning is so easy. I am not a fan of the packaging of it, it is not normal Vital Choice packaging, the vacuum seal has come undone on half of these blocks that I’ve ordered. It then gets freezer burned very fast. Other than that, it is an excellent product. Hello Ryan, Thank you for sharing your feedback. Our Customer Service Team will be reaching out to you shortly to discuss your order. The Vital Choice Team

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Yellowfin (Ahi) Tuna, filtered wood smoke

Nutrition Facts
Saku, Ahi Tuna, 8oz vac-pack
Serving Size 4oz
Number of servings: 2

Amount Per Serving
Calories 110 Calories from Fat

% Daily Value*
Total Fat .5 1%
Saturated Fat 0 0%
Trans Fat 0g
Cholesterol 45mg 15%
Sodium 50mg 2%
Total Carbohydrate 0g 0%
Dietary Fiber 0g 0%
Sugars 0g Includes 0g Added Sugars 0%
Protein 27g 54%

Vitamin D 2.3mcg • 10%
Calcium 0mg • 0%
Iron .7mg • 4%
Potassium 500mg • 10%
* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.


  • Keep frozen at or below 0° F (-18° C).
  • Vacuum-sealed ahi tuna kept at or below 0° F should retain its quality for 12 to 24 months.
  • Shellfish and lean white fish (halibut, cod) generally have a longer freezer life than fatty fish (salmon, tuna, sablefish).
  • Seafood stored in frost-free freezers should be used within 3 months.

Sushi-Safe Fish

To ensure our fish is safe to serve raw, it is flash-frozen within hours of catch, vacuum packed, and shipped on dry ice.


  • Keep frozen until ready to thaw* for use.
  • The frozen tuna will retain its quality for up to one year if frozen at 0°F or lower, provided its vacuum seal remains intact. We recommend using the tuna within 12 months. 
  • *Thaw the packaged fish in the refrigerator overnight, or immerse the frozen package in cool water for 20-30 minutes until pliable. Once thawed, remove the fish from the package and pat dry with a paper towel.




Frozen foods are packed with dry ice
and ship Monday through Wednesday (except holidays).

Frozen foods ship via 2nd Day Air service or 1-3 Day Express Ground service, depending on shipping date and destination.

Free shipping
on orders over $99

Standard Shipping Fees

  • Up to $49.99 = $6.95 shipping
  • $50 - $98.99 = $12.95 shipping
  • $99 and over = FREE shipping

Overnight shipping and other premium services cost extra; for more information, see our Shipping page. (Live shellfish ship overnight at no extra cost.)

  • We cannot ship perishable goods to PO boxes.
  • Free standard shipping applies to all orders of $99 or more sent to any U.S. street address.
  • Perishable shipments to Alaska and Hawaii are subject to surcharges; please see our Shipping page.

When will my frozen foods arrive?

  • Orders placed Saturday, Sunday, Monday, or before 10 AM Tuesday will ship on Tuesday* to arrive 1-3 days later.
  • Orders placed between 10 AM Tuesday and 10 AM Wednesday will ship on Wednesday* to arrive 1-2 days later.
  • Orders placed after 10 AM on Wednesday through 12:00 midnight Friday will ship on Monday* to arrive 1-3 days later.

*Except when a holiday falls on the designated shipping day.

For more information, see our Shipping page.