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How Long to Cook Green Beans in the oven

Specification: Fresh green beans, ends trimmed and patted completely dry, tossed with olive oil and sea salt

Target Temp
Heat Waves
425°F (218°C)
Radiant Heat
Total Time
Clock Time
18–22 mins
Total Cook Window
Flip Mark
Flip Action
10m
Turnover Point
Internal Safe Temp
Thermometer Probe
USDA Safe Pull
COOK MODE
Live timer · flip prompt · target temp · rest stage
Start cook

3-Step Execution Protocol

1
Preheat & Prep

Preheat oven to 425°F (218°C). Prepare green beans (Fresh green beans, ends trimmed and patted completely dry, tossed with olive oil and sea salt). Spray lightly with high-smoke-point oil.

2
Cook & Flip

Cook for 18–22 mins. Flip at the 10-minute mark for even browning.

3
Check & Rest

Wrinkled skins with dark caramelized blister spots, tender-crisp snap, concentrated sweet green flavor. Rest for 0 minutes before serving.

Verification Basis & Testing Rig

USDA ARS Green Bean Cooking Research; The Kitchn Roasted Green Beans Guide.

Pro Tip: Ensure beans are completely dry before oiling; any water on the surface causes beans to steam limp instead of blistering.

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