Clemson Cooperative Extension

Authority

Academic

Territories

US

Primacy

secondary

Commercial interest

none

Retrieved

2026-08-13

State

Read and citable

Original document

Originally by E.H. Hoyle, revised by Adair Hoover. Sets out the '10-minute rule' — 10 minutes per inch of thickness at 450 °F, turning halfway — plus the adjustments that make it a real rule rather than a slogan: add 5 minutes in foil or sauce, double it for fish cooked from frozen, and 10–12 minutes per inch for whole fish over indirect heat. A rule expressed per unit of THICKNESS rather than per portion, which is the shape BBQHQ had long argued for and had no source for.

Culinary practice, Technical, Safety

• “bake for 10 minutes per inch thickness of the fish, turning the fish halfway through the cooking time”

  Clemson gives the ten-minute rule for fish: measured at its thickest point, bake at 450 °F for 10 minutes per inch of thickness, turning halfway through.

  Method:

  Stated for baking at 450 °F, NOT for grilling. The oven is the assumed appliance.

  How it was measured:

  Measured at the thickest point, after stuffing or rolling if either applies.

  Add 5 minutes if cooked in foil or in a sauce; double to 20 minutes per inch for fish cooked from frozen.

• For grilling, Clemson advises indirect heat over a moderately hot fire on a well-oiled grid, and 10 to 12 minutes per inch of thickness for whole fish, turning halfway.

  Method:

  Indirect heat, moderately hot fire.

  Form:

  The per-inch figure is stated for WHOLE fish, not fillets.

• “Fish is cooked when its meat just begins to flake easily when tested with a fork and it loses its translucent or raw appearance.”

  Clemson states that fish is cooked when its flesh just begins to flake easily when tested with a fork and it loses its translucent or raw appearance.

  Form:

  A physical signal rather than a temperature — the shape a texture endpoint takes.

• “Adjust the grill height to 4 to 6 inches above the heat. To grill fish, a moderately hot fire is best for cooking seafood. Frequently baste steaks and fillets while grilling to prevent them from drying out. ... Cook fish covered, 10 to 12 minutes per inch of thickness, turning halfway through cooking time. ... its meat just begins to flake easily when tested with a fork and it loses its translucent or raw appearance”

  Clemson states its ten-minute rule for the whole family of dry and moist methods — baking, broiling, GRILLING, steaming and poaching — rather than for the oven alone, and gives separate grilling setup guidance: a moderately hot fire with the grid 4 to 6 inches above the heat, basting steaks and fillets frequently to stop them drying. Fish is done when the flesh just begins to flake with a fork and has lost its translucent appearance, at an internal temperature of 145 °F.

  What it covers:

  The correction this record exists for. The ten-minute rule was recorded as an enclosed-oven figure, with a note that it was 'for an oven, not a grill'. Re-reading the source shows the rule is stated for baking, broiling, GRILLING, steaming and poaching together, and that the page carries its own grilling setup instructions. BBQHQ narrowed the source and then treated the narrowing as the source's own limit.

  Ten to twelve minutes per inch of thickness, turning halfway. A rate, not a window.

  The covered instruction is attached to WHOLE fish on this page. It is not transferred to fillets, which the document does not describe as covered or uncovered.

• Fish is timed by thickness rather than by weight. Clemson gives ten minutes per inch at 450 °F in an oven, with five minutes added in foil or sauce and double for frozen fish; Weber gives 8–10 minutes per inch on a grill. Doneness is a physical signal — the flesh just begins to flake and loses its translucency.

If this source changes, these are the claims that need rechecking. That is the point of recording provenance per claim rather than per page.