Do I need a rack to bake bacon?
No. A rack is optional. With a rack, the fat drips away and the bacon often cooks a little more evenly crisp. Without a rack, the bacon sits in some of its own fat, which can mean slightly richer flavor and sometimes slightly less even crisp. Both work.
Should I start bacon in a cold oven or a preheated oven?
Both are valid. Preheated oven (400°F) is faster and more predictable for timing. Cold oven start can help render fat more gently, which often leads to flatter strips and fewer popped bubbles. If you start cold, add about 3 to 5 minutes, then start checking.
How do I keep bacon flat in the oven?
Use a rack if you have one, and do not overlap the slices. For extra-flat bacon, start in a cold oven and check a bit later. If your bacon is curling like a phone cord, you can place another sheet pan on top for the first 8 to 10 minutes, then remove it to finish crisping.
Why is my bacon not crispy?
Most common causes are crowding (less airflow means less even crisping), too low temp, or pulling it too early. Bacon also crisps more as it cools for 2 to 3 minutes. If it is still limp, give it another 2 minutes and check again.
Can I bake thick-cut bacon this way?
Yes, but thick-cut needs more time. At 400°F, expect 20 to 28 minutes, depending on thickness and how crispy you like it. Start checking around 18 to 20 minutes.
Is parchment or foil better?
Parchment is my favorite for easy cleanup and less sticking. Foil is great if you want to save every drop of grease and you do not mind a little more sticking risk. If using foil, lightly oil it or use nonstick foil.
What if my bacon smokes at 400°F?
Some bacon (especially thick-cut or sugar-cured) can smoke. If that happens, drop the oven to 375°F and plan on a few extra minutes, or start checking earlier if you use convection. Also, a cracked window and a fan do not hurt.
Do I need to change anything for convection?
If you use convection or a fan setting, it cooks faster. Reduce the temp by about 25°F (try 375°F) or keep 400°F and start checking a few minutes early.