Frozen Atlantic Bluefin Tuna Steaks
Frozen Atlantic Bluefin Tuna Steaks
At Intershell, we understand that nothing compares to the taste of fresh-caught tuna. That's why our frozen tuna is treated with the same meticulous care as our fresh product. To ensure that our tuna maintains its pristine quality, we immediately flash-freeze it to a core temperature of -60°F or below. This ultra-low freezing process is a highly specialized method that preserves the tuna's natural color, texture, and flavor without any chemical treatments.
Freezing tuna in its natural state is an incredibly difficult process, as its delicate flesh is prone to color oxidation. Unlike other suppliers who use carbon monoxide to artificially maintain a vibrant red color, we at Intershell Seafood never treat our fish with chemicals. Our commitment is to pure, natural quality.
To ensure you get the best possible experience from our flash-frozen Bluefin Tuna steaks, proper storage and defrosting are key. Because our tuna is never treated with carbon monoxide, its natural color is preserved, but it will begin to oxidize over time, just like fresh tuna.
Steak Size: 8 Oz
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Package Size: 8 Oz
Harvest Area
Harvest Area
East Coast: Massachusetts, Canada, or North Carolina
Shipping & Refunds
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Scientific Name
Scientific Name
Thunnus thynnus
Why choose our Frozen Bluefin Tuna Steaks?
Why choose our Frozen Bluefin Tuna Steaks?
Purity and Integrity: We never use carbon monoxide or any other chemical treatments. The beautiful color of our tuna is a reflection of its natural state, preserved through our advanced freezing process.
Locked-in Freshness: Flash-freezing at ultra-low temperatures locks in the tuna's peak freshness, flavor, and firm texture from the moment it's caught.
Convenience: Enjoy the taste of wild Bluefin Tuna whenever you want, without worrying about seasonality. Our individual steak cuts are ready to thaw and cook.
Uncompromised Quality: You get the same rich, delicious flavor and firm texture as our fresh tuna, making it perfect for grilling, searing, or pan-frying.
Storing and Defrosting Our Bluefin Tuna
Storing and Defrosting Our Bluefin Tuna
Storage Recommendations:
- Short-Term Storage: You can store our frozen tuna in your home freezer for approximately one week without significant color oxidation. After this period, the vibrant red color will naturally begin to darken. While the tuna will still be perfectly safe to eat, its visual appeal to consume for sasahimi purposes may diminish.
- Best Results: For the absolute best results, we strongly recommend you defrost and consume the tuna as soon as you receive it. This is not an item we recommend buying in bulk for long-term freezer storage, especially if you intend to eat it as sashimi. If you plan on cooking the tuna, longer-term storage will not impact its flavor or quality.
Defrosting Instructions (for best results):
- Prepare the Ice Bath: Fill a bowl with ice water. This creates a gentle, cold environment that thaws the tuna evenly while preserving its texture.
- Defrosting: Place the tuna steaks (still in their vacuum-sealed packaging) into the bowl of ice water. Allow them to defrost for approximately 4-6 hours, depending on the thickness of the steak.
- Final Preparation: Once defrosted, remove the tuna from its packaging. You will notice the color might be slightly darker. This is normal. Let the tuna sit for a few minutes to allow oxygen to hit the surface, which will help the natural redness to brighten up.
- Enjoy: Once the color has returned to a vibrant red, the tuna is ready to be sliced for sashimi or nigiri. Enjoy immediately to savor the pristine taste and texture.

Purchased it for my son who loved it. Best tuna steaks in the world according to him
Taste great
Atlantic bluefin tuna steaks delicious! Served as sashimi with Domins horseradish and soy sauce. Thank you Intershell Seafood David
I sent them to my brother in St Louis…… He says. Wow !