Flank Steak BBQ Cook Time
230°C (450°F) High Heat
3–4 min per side • Internal: 55°C (131°F) for medium-rare
Doneness Guide
| Level | Internal Temp | Cook Time | Result |
|---|---|---|---|
| Rare | 49°C (120°F) | 2–3 min per side | Cool red centre. |
| Medium-Rare | 55°C (131°F) | 3–4 min per side | Warm red centre. The maximum you should go. |
| Medium | 60°C (140°F) | 4–5 min per side | Pink centre, getting firmer. Risk of toughness. |
How to BBQ Flank Steak
1
Pat dry. Season generously or marinate for 2–4 hours.
2
Preheat BBQ to high — 230°C (450°F).
3
Grill 3–4 minutes per side for medium-rare.
4
Rest for at least 5 minutes — 10 is better.
5
Slice very thin, sharply against the grain. This makes or breaks flank steak.
Pro Tips
- Flank is leaner than skirt — don’t overcook it.
- Marinating adds both flavour and tenderness to this lean cut.
- The rest period is especially important for flank — give it a full 10 minutes if you can.
- Perfect for stir-fries, salads, and steak sandwiches when sliced thin.
Resting Time
Rest for 5–10 minutes after removing from the BBQ. This allows juices to redistribute for a juicier result.
External Resources
- NSW Health — Food Safety — NSW Government safe cooking guidelines
- VIC Health — Food Safety — Victoria Government food safety information
- Australian Beef — Official guide to Australian beef cuts and cooking methods
- Weber Australia Blog — BBQ tips and techniques from Weber Australia
Frequently Asked Questions
How long to BBQ flank steak?
3–4 minutes per side over high heat (230°C/450°F) for medium-rare.
How do you make flank steak tender on the BBQ?
Three keys: marinate for 2–4 hours, don’t cook past medium-rare, and slice very thin against the grain.
Is flank steak good for BBQ?
Absolutely. It’s lean, flavourful, and affordable. Just respect the thin-slice rule.