How Long to Cook Asparagus Spears in the Oven at 400°F
Asparagus Spears in the oven at 400°F takes 12–18 minutes. Pull at 0°F internal. Full chart and calculator below.
Asparagus Spears in the Oven at 400°F204°C. Done when fork-tender.
How long to cook asparagus spears in the oven at 400°F
- Food
- Asparagus
- Cut
- Asparagus Spears
- Appliance
- Oven
- Temperature
- 400°F204°C
- Cook time
- 12–18 minutes
- Source
- No USDA safety minimum (vegetable)
Answer: Asparagus Spears in the oven at 400°F204°C takes 12–18 minutes.
Asparagus Spears Oven Calculator
Estimates only. Asparagus Spears cook time varies with appliance, starting temperature, and shape. Always verify with an instant-read thermometer.
Doneness Target
No USDA safety minimum for vegetables. Done when fork-tender with bright color.
Vegetables have no required safe internal temperature. Done means tender-crisp — a knife should slide through the thickest part with no resistance.
Asparagus Spears Oven Cook Time Chart
| Temp | State | Time |
|---|---|---|
| 400°F204°C | refrigerated | 12–18 min |
How to Cook Asparagus Spears in the Oven
- 1Preheat your oven to 400°F204°C.
- 2Cook for 12–18 minutes.
- 3Verify a knife slides through with no resistance.
- 4Serve immediately.
Frequently Asked Questions
How long does asparagus take in the air fryer?
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Asparagus takes 6–10 minutes at 400°F in the air fryer depending on spear thickness. Pencil-thin spears 6 minutes, medium 8, thick 10.
What temperature do you roast asparagus at?
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Roast asparagus at 425°F for 10–15 minutes. Toss with oil and salt, spread in a single layer, and no flipping is needed.
How do I know asparagus is done?
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A knife should slide through the thickest part of the stem with no resistance. The color deepens to a vivid green with caramelized tips when roasted or grilled.
Should I peel asparagus before cooking?
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Only very thick spears benefit from peeling the lower third. Pencil-thin and medium spears do not need peeling — just snap off the woody bottom inch.