Aluminum Foil vs. Parchment Paper: 5 Rules for the Right Pick

Aluminum foil and parchment paper look interchangeable on the roll, but they have different limits: foil withstands the highest temperatures in most home ovens, while parchment is rated only up to 425°F (218°C) and stays out of the broiler. Pick by heat first, then by food, and each one does its job well.

In this guide:

• The heat limits that decide the choice
• The microwave rule
• Acidic foods
• Reuse, and a 3-step way to choose before you cook

Foil vs. parchment at a glance

What the table shows: foil is the high-heat pick, parchment is the baking pick with a firm 425°F (218°C) ceiling. The microwave row is the safety line between them.

Aluminum foil: where it wins

Foil handles the jobs parchment cannot. Reynolds Brands states that foil withstands the highest temperatures in most home ovens, so it is the liner to reach for when a recipe runs hotter than parchment allows or calls for the broiler or grill.

For reheating leftovers in a foil wrap or foil-lined dish, Reynolds says to heat in the oven until the internal temperature of the food reaches 165°F (74°C). Use a food thermometer rather than guessing.

Foil also molds around containers and food to block air, which makes it the storage pick for leftovers in the fridge or freezer, according to Reynolds. It seals in moisture when covered or wrapped, locking in steam and juices.

Two limits apply. Reynolds does not recommend putting foil in the microwave, because it can cause sparks and potentially start a fire. And avoid highly acidic foods on foil, as it can affect the taste of your food.

Best for: broiler or grill cooking, and any recipe that runs above the parchment limit.

Parchment paper: where it wins

Parchment paper has a food-safe silicone coating, which is why baked goods release cleanly without extra grease. Reynolds Kitchens parchment can handle temperatures up to 425°F (218°C), and the guidance is firm: the temperature should not exceed 425°F (218°C), and parchment should never be used with broiling units or toaster ovens.

Parchment is also the better choice when you cook something very acidic, such as a tomato-based dish. In the microwave, you can cover foods, steam vegetables, and reheat leftovers with it, which is the exact job foil should not do.

Reynolds lists parchment as reusable up to 3 times per baking session, which suits batches of cookies on the same sheet pan. It also recommends parchment for lining cake and brownie pans, where it allows easy, even baking and release from the pan.

Parchment is breathable, and it works well for steaming fish in folded packets. One caution from Reynolds: keep it away from open flames and heating elements, and do not let it touch the oven racks or sides.

Best for: baking and roasting at or below 425°F (218°C), acidic dishes, and microwave covering.

Everyday jobs side by side

For cookies, parchment gives an easy, non-stick release, while foil gives crispier bottoms. For lining baking sheets, either works, with foil easing cleanup and helping prevent over-browning when used as a cover.

For grilling and roasting meats that need a crisp, golden finish, Reynolds points to foil. For sticky glazes and delicate bakes, parchment is the gentler choice. Vegetables come out crisper on foil and softer on parchment.

Common mistakes to avoid

• Using parchment under the broiler or in a toaster oven. Reynolds says parchment should never be used with broiling units or toaster ovens.
• Putting foil in the microwave. Reynolds advises against it because of sparks and fire risk.
• Wrapping tomato-based or other highly acidic dishes in foil, which can affect the taste.
• Pushing parchment past 425°F (218°C) because a recipe runs a little hot.

Choosing in 3 steps

1. Check the heat and the appliance. Broiler, grill, or temperatures above 425°F (218°C) point to foil. Standard baking at or below 425°F (218°C) works with parchment. Microwave use points to parchment, not foil.
2. Check the food. Tomato sauce and other highly acidic dishes do better on parchment. Dishes without strong acid are fine on either.
3. Check the job. Lining a sheet pan for easy release favors parchment. Roasting or reheating at higher heat, or cooking under a broiler, favors foil.

Before you cook

Read the package of whichever product you own. Check the box for the maximum temperature printed on it, since brands can differ, and follow that number over any general rule.

Parchment also needs a little care before it goes in: Reynolds says it should not touch the oven racks, sides, top, or bottom, so keep the sheet inside the pan's footprint. Foil, by contrast, can be shaped around a dish or container, which is why it works well as a lid or cover.

Replace either one when it tears, scorches, or discolors. If a recipe sits close to the 425°F (218°C) line, use foil or a different liner rather than pushing parchment past its rating. When in doubt, see the manufacturer's official site for the most current guidance.

Sources

• Reynolds Brands, Aluminum Foil and Cooking Papers Guide
• Reynolds Brands, Aluminum Foil vs. Parchment Paper: What's the Difference for Baking?