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IFX-014 · 10 in skillet · Direct sear

Seared scallops: a 20 minute dry brine against a wet surface

Scallops are sold wet or dry, and the wet ones carry a phosphate solution that will fight you no matter how hot the pan is. This run compares three surface preparations on the same iron.

· Published · 8 min read

Bench plate IFX-14: rim diameter, wall thickness, handle angle and measured parameters

01Abstract

Twelve large dry-packed scallops were seared in a 10 in skillet at 460 °F in ghee, in three groups of four: patted dry only, dry brined 20 minutes on a rack, and left wet straight from the bag. First side 105 seconds, second side 30 seconds. The dry-brined group released unaided and built a 2 mm golden crust; the wet group stuck at three points and steamed a 3 mm grey band under the surface.

02Variables

Independent

  • Surface preparation: patted dry, dry brined 20 min on a rack, or used wet from the bag

Held constant

  • Scallops: 12 large dry-packed, 25 g each, all at 4 °C
  • Pan: 10 in bare cast iron, 5 min preheat to 460 °F, 1 tsp ghee
  • Four scallops per batch, placed clockwise, 2 cm apart
  • 105 s first side without touching, 30 s second side
  • Fish spatula used flat, no tongs

Hypothesis Scallops stick when their surface is wet, not when the pan is too cold; a 20 minute dry brine solves more than another 50 °F of heat.

03Process

  1. Set the scallops on a rack over a plate. Group A gets nothing, group B gets 1/4 tsp of fine salt per scallop for 20 minutes, group C stays in its bag liquid.
  2. Preheat the pan 5 minutes to 460 °F, add 1 tsp ghee and swirl until the foam subsides.
  3. Blot group B once more with a paper towel — the salt has drawn water out and it must come off.
  4. Place four scallops clockwise, flat side down, 2 cm apart, and do not touch them for 105 seconds.
  5. Flip with a flat spatula for 30 seconds, then serve immediately; wipe the pan between batches and let it recover 60 seconds.

04Observations

  • Dry-brined scallops: no stick at all, a 2 mm golden crust across the whole flat face, and a translucent centre that read 52 °C.
  • Patted-dry scallops: one of four stuck, and the crust was 1 mm with two pale spots.
  • Wet scallops: three of four stuck, releasing only with a hard nudge, and each left a 3 mm grey steamed band below the crust.
  • The pan temperature fell 30 °F with the first batch in every case; the second batch therefore started 15 °F hotter to compensate.
  • Ghee at 460 °F developed a nutty smell at 80 seconds and did not smoke; the same pan with butter instead would have burned before the first flip.

Instrument log

PreparationStuckCrustGrey bandCore
Dry brine 20 min0 of 42 mm goldennone52 °C
Patted dry1 of 41 mm, patchy1 mm55 °C
Wet from the bag3 of 40.5 mm3 mm58 °C

05Conclusion

Twenty minutes of dry brining on a rack does more for a scallop than any amount of extra heat. The salt pulls surface water out and firms the outer layer, so the flat face makes full contact from the first second instead of steaming itself free. Once the pan is at 460 °F, the crust is on the clock: 105 seconds for a 25 g scallop, 30 seconds on the second side, and no more.

Terms used