Sous Vide Flat Iron Steak: Temperature & Time Guide
Flat iron is the butcher's secret — nearly as tender as filet at half the price. Sous vide brings out its best.
Our top pick
Anova Precision Cooker 3.0
A circulator with an on-device screen makes it easy to dial these exact temps without touching your phone — our top pick for precision cooking.
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Quick comparison
| Pick | Why we like it | |
|---|---|---|
| Anova Precision Cooker 3.0 | A circulator with an on-device screen makes it easy to dial these exact temps without touching your phone — our top pick for precision cooking. | View → |
| Instant-read meat thermometer | Use one to verify your water bath and spot-check the finish — a $15 probe removes all guesswork. | View → |
Anova Precision Cooker 3.0
Editor’s PickA circulator with an on-device screen makes it easy to dial these exact temps without touching your phone — our top pick for precision cooking.
- + On-device temperature control
- + 1100W heats fast
- + Recipe library for temps
- − Premium price
- − Some app features paywalled
Free shipping on eligible items
Use one to verify your water bath and spot-check the finish — a $15 probe removes all guesswork.
- + Verifies actual temperature
- + Cheap insurance
- − Not needed if your circulator is accurate
Free shipping on eligible items
Buying advice
1) Season the flat iron, cook at 131°F for 1.5 hours. 2) Pat dry. 3) Sear 60-90 seconds per side in a hot pan. 4) Rest 5 minutes. 5) Slice against the grain — the flat iron's fibers run one way, so slicing matters.
FAQ
What temperature for flat iron?
131°F (55°C) for 1.5 hours — tender and juicy.
Is flat iron as good as filet?
Very close in tenderness, with more flavor — and a fraction of the price.
How do I slice it?
Always against the grain — the flat iron has one pronounced fiber direction.
Ready to cook perfectly?
Our top pick for this guide — check today’s price and clip any on-page coupon on Amazon:
Anova Precision Cooker 3.0
A circulator with an on-device screen makes it easy to dial these exact temps without touching your phone — our top pick for precision cooking.
As an Amazon Associate we earn from qualifying purchases.
Want exact temps and times? Use our free sous vide calculators.