whitefish
Chilean Sea Bass
Chilean sea bass is Patagonian toothfish, a slow-growing Antarctic species carrying so much fat that it is nearly impossible to dry out. The name was invented in 1977 by a Los Angeles importer who judged, correctly, that nobody would order toothfish. Roast or sear it to 130–135°F.
In one line
Not a bass. A toothfish, renamed by a fish importer in 1977 — and it worked.
Buy it if
You want the most forgiving expensive fish there is, and you're willing to ask where it was caught.
The name is a sales decision. Dissostichus eleginoides was renamed "Chilean sea bass" in 1977 by importer Lee Lantz. It is not a bass and it is not necessarily Chilean — it is a deep-water Antarctic and sub-Antarctic fish in the notothen family.
It lives for decades, which is why overfishing hit it so hard. Toothfish grow slowly and can live around fifty years, so a stock fished down does not recover inside a human career. Through the 1990s and 2000s a large share of the catch was illegal, and chefs ran an organized boycott against it.
Origin is now the entire sustainability question. Some toothfish fisheries — South Georgia and the Heard & McDonald Islands among them — currently hold MSC certification and are closely monitored; others do not. The words "Chilean sea bass" on a label tell you nothing about which. Buy from someone who names the fishery.
Fat makes it foolproof. The flesh is layered with oil, holds together under a hard sear, and takes a hot oven without drying. If expensive fish makes you nervous, this is the one to practice on.
Where it comes from on the animal
| Species | whitefish |
|---|---|
| Subprimal | portion, cut from the fillet |
What else it’s called
How to cook Chilean Sea Bass
| Best methods | Pan sear Oven roast Broil Steam Grill |
|---|---|
| Skip | Deep fry |
| Cook to | 130–135°F, roasted or seared. The fat means a minute over won't ruin it. |
If Chilean Sea Bass is sold out
Common questions
What is Chilean sea bass really?
Patagonian toothfish, a deep-water Antarctic species in the notothen family, with no relation to any bass. A close relative, Antarctic toothfish, is sold under the same market name.
Is Chilean sea bass sustainable?
It depends entirely on the fishery, and that is not a dodge. Well-managed operations — South Georgia and Heard Island currently hold MSC certification — land alongside catch from far weaker management. The market name carries no information about which you're holding, so buy where the fishery is named.
How do you cook Chilean sea bass?
Hot and briefly. Sear it skin-side down or roast at 400°F to 130–135°F. It has enough fat to survive a minute of inattention, which almost nothing else at this price does.
Why is it so expensive?
A slow-growing fish, fished under strict international quota, from some of the most remote water on earth. Every step of getting it to a counter costs money, and there is no farmed version to undercut it.
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