Meat & Seafood

Swordfish (Raw): Storage & Shelf Life

Swordfish is a meaty, fattier fish that shares tuna's shorter 2-3 month freezer window, reflecting its meaningful fat content compared to a lean white fish like cod or halibut.

Its dense, steak-like texture makes it a common choice for grilling, holding up to direct high heat in a way a more delicate, flaky fish couldn't — swordfish is often prepared and served in a way that more closely resembles a beef or tuna steak than a typical flaky white fish fillet.

Like tuna, larger predatory fish like swordfish are a specific concern for mercury accumulation, which is why swordfish appears on health guidance limiting consumption frequency, particularly for pregnant women and young children — a genuine, sourced dietary consideration distinct from ordinary storage and spoilage guidance.

A swordfish steak's dense, meaty texture holds up well to a couple of days on ice before cooking, though its firmness can mask early spoilage, so smell is a more reliable check than texture alone.

Swordfish steaks freeze and thaw somewhat more predictably than a whole fish given their uniform, pre-cut shape.

A thawed swordfish steak should be patted thoroughly dry before it hits the pan, since its dense flesh holds onto surface moisture that would otherwise steam rather than sear.

Because swordfish is typically cut into thick steaks with a lot of exposed flesh, vacuum-sealing before freezing meaningfully cuts down on the freezer burn that would otherwise dull both texture and flavor over a multi-month freeze.

Fresh swordfish should smell like the ocean, mild and clean, rather than distinctly fishy — a stronger ammonia-like odor is the clearer spoilage sign to watch for, since its firm texture doesn't soften as visibly as a flakier fish would once it turns.

Storing a swordfish steak on a bed of ice in a container in the fridge, rather than directly on a shelf, keeps it colder and fresher through its short window than the fridge's ambient temperature alone would.

A swordfish steak's naturally low fat marbling compared to a fattier fish like salmon means it dries out more easily during freezing, which is part of why a tight seal against air matters more here than for an oilier cut.