Sea Bass
Core temp: 55–58°C
Skin: Score, dry, cold pan
Technique: Skin down 80% of cook time, flip 1 min
Tell: Flesh turns opaque, flakes clean
Salmon
Core temp: 50–54°C (medium)
Well done: 60°C+
Technique: Hot pan, skin down 70% of cook
Tell: Pin bone colour change at spine
Tuna
Seared rare: 30–35°C centre
Tataki: 5 sec each side, very hot pan
Tell: 5mm grey crust, red centre
Note: Must be sashimi-grade for rare
Scallops
Core temp: 55°C
Technique: Very hot dry pan, no oil
Time: 90 sec each side maximum
Tell: Golden crust, slight give when pressed
Prawns
Core temp: 60°C
Time: 2–3 min total
Tell: Pink, C-shape = perfect
O-shape = overcooked
Octopus
Braise first: 85–90°C / 45–60 min
Then grill: Very hot, 2–3 min
Tell: Tender to probe, slight char
Rest: In braising liquid until needed