How to choose the right cookie sheet
Updated June 2026Independently researchedNo paid placement.
For consistent, evenly baked cookies, choose a heavy-gauge aluminum baking sheet with a low rim, ideally a half-sheet size. Avoid thin sheets that warp and skip nonstick coatings if you want a sheet that lasts decades; uncoated aluminum or steel with a simple finish is easier to maintain and produces better browning.
What is the best material for a cookie sheet?
The two most common materials are aluminum and steel. Heavy-gauge aluminum (around 1/8 inch thick) heats up quickly and evenly, and it won’t rust. It can warp if it’s too thin, so look for a sheet that feels substantial and has a reinforced rim. Many professional bakers swear by aluminum because it gives cookies a consistent golden bottom without hot spots. Steel sheets, often with a tin-plated or dark nonstick coating, are sturdier and less likely to warp but take a bit longer to heat. Darker surfaces absorb more heat, which can lead to over-browning on the bottom if you’re not careful. Insulated sheets (two layers with an air gap) are sometimes marketed for cookies, but they often spread too much heat and produce pale, soft bottoms, not ideal for a crisp edge.
Should you buy a rimmed or rimless baking sheet?
For cookies, a low rim, typically one inch or less, is the best compromise. A rim catches any butter that melts and prevents sheets from sliding off the oven rack. Full sheet pans with high rims can trap steam and make cookies soggy on the bottom, while completely rimless sheets (often called cookie sheets) are fine for dropped cookies but dangerous if you need to slide the sheet off a hot surface. Most home bakers are best served by a standard half-sheet pan (roughly 18 by 13 inches) with a rolled rim on all four sides. It fits in most residential ovens, handles a dozen cookies comfortably, and doubles for roasting vegetables or baking sheet cakes. Avoid cheap, thin pans that bow in the center, flexing leads to uneven baking.
How to prevent your cookie sheets from warping
Warping happens when a thin sheet heats unevenly, the center expands faster than the edges, causing a bulge. The solution is to buy a sheet made from a single piece of thick metal. Look for pans labeled “commercial-grade,” “heavy-duty,” or “extra-thick”. these are often used in restaurant kitchens and resist bending even under high heat. Another common cause of warping is washing a hot pan with cold water. Always let the sheet cool completely before cleaning. If you already own a thin pan that bows, you can try lining it with parchment paper and setting a heavy oven-safe pan on top during baking to help keep it flat. But for long-term peace of mind, investing in a thick pan is worth the extra money.
Nonstick vs. uncoated: which is better for cookies?
Uncoated aluminum or steel sheets are the workhorses of professional kitchens. They brown cookies beautifully, clean up easily with a scrub brush and soap, and last for decades. Dark, nonstick coatings can cause the bottoms of cookies to over-brown or burn, especially at temperatures above 375°F. The coating also wears down over time and can peel if scratched. That said, a quality nonstick sheet with a light-colored ceramic coating can be a good choice for delicate cookies like madeleines or tuiles that need to release perfectly. But for everyday chocolate chip, sugar, or shortbread cookies, an uncoated sheet lined with parchment paper gives you the best of both worlds: easy release, even browning, and no concerns about coating durability.
What size cookie sheet should you choose?
Measure your oven’s interior width before buying. A standard half-sheet pan (about 18 by 13 inches) fits most home ovens, but some older models are smaller. Quarter-sheet pans (roughly 9 by 13 inches) are great for smaller batches or for using two at once on different racks. Full-sheet pans (about 26 by 18 inches) are too large for typical home ovens unless you have a restaurant-style range. For versatility, buy two half-sheet pans. That way you can bake two trays simultaneously (rotating them halfway through) or have one cooling while the other bakes. Avoid pans with nonstandard shapes or very tall sides, they limit what you can use the pan for besides cookies.
How to care for and clean your cookie sheets
Let the sheet cool completely before washing. For uncoated aluminum, hot water and a stiff brush or scrub sponge are usually enough to remove grease and stuck-on bits. A paste of baking soda and water works wonders for stubborn residue. Avoid putting aluminum in the dishwasher, the high pH detergents can cause pitting and darkening. Steel sheets with a tin or nonstick coating are also best hand-washed. To remove baked-on stains without harsh chemicals, fill the sheet with warm water and a few tablespoons of vinegar or lemon juice, then sprinkle on baking soda. Let it sit for 15 minutes, then scrub. Dry immediately with a towel to prevent water spots. Parchment paper is your friend: it virtually eliminates the need for cleaning and extends the life of the pan.
Frequently asked questions
Can I put a cookie sheet in the dishwasher?
It depends on the material. Uncoated aluminum pans will discolor and may corrode in the dishwasher due to alkaline detergents. Steel pans with nonstick coatings often have warnings against dishwasher use because the high heat and harsh chemicals can degrade the coating. For longevity, hand-washing is always safer.
What’s the difference between a cookie sheet and a baking sheet?
A cookie sheet traditionally has no rim or a very low rim on one or two sides, making it easy to slide cookies off. A baking sheet (often called a sheet pan) has a rim on all four sides. For most home bakers, a low-rimmed baking sheet is more versatile: it catches spills, can be used for roasting, and still works well for cookies.
Why do my cookies burn on the bottom but stay pale on top?
This usually means your baking sheet is too thin or too dark. Thin sheets heat unevenly and can scorch the bottom; dark-colored sheets absorb more heat, causing faster browning on the underside. Try a thicker, light-colored aluminum sheet and use parchment paper. You may also need to lower your oven temperature by 25°F and extend the baking time slightly.
Is parchment paper better than silicone baking mats?
Both have pros and cons. Parchment paper provides a nonstick surface, promotes even browning, and can be tossed after use. Silicone mats are reusable, but they can insulate the cookie, leading to slightly softer bottoms and longer bake times. For crisp cookies, parchment is usually better. For sticky, soft doughs (like macarons), silicone mats are often preferred.
How many cookie sheets should I own?
Two half-sheet pans are the sweet spot. They let you bake one batch while the other cools, and you can rotate them between racks for even heat distribution. If you frequently bake large volumes, consider a third pan so you can have one in use, one cooling, and one in reserve.
Can I use a cookie sheet at temperatures above 450°F?
Most aluminum and steel sheets are safe up to at least 450°F, but nonstick coatings often have a lower max temperature, check the manufacturer’s guidelines. Thin pans can warp under very high heat, so if you plan to use a sheet for pizza or roasting at 500°F, choose a thick, heavy-gauge pan without a coating.