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Medium-rare Flank Steak: Time & Temp

For a medium-rare flank steak (0.75" thick), grill about 3.4 minutes per side at 500°F and pull at an internal temperature of 135°F.
DonenessInternal tempTime per side
Rare125°F2.9 min/side
Medium-rare135°F3.4 min/side
Medium145°F4.0 min/side
Medium-well150°F4.6 min/side
Well-done160°F5.3 min/side

Remember carryover cooking: pull the steak about 3-5°F below 135°F and rest 8 minutes before slicing.

Adjust for thickness →   Full Flank Steak guide