What Goes in the Tray at Airport Security

Everyone · Explainer · Updated October 1, 2026 · LearnLife Editorial

What is the tray at airport security used for?

The tray at airport security is a plastic bin or container designed to hold items you need to remove from your carry-on luggage or pockets for separate screening. This includes objects that might block or obscure the X-ray scanner’s view or require further inspection by security officers. When you arrive at the checkpoint, you’ll typically be asked to place these items in trays that go through the X-ray machine individually. This system helps security staff see your belongings clearly and detect any prohibited or suspicious items without unpacking your entire bag.

For example, if you carry a backpack with a laptop inside, you will remove the laptop and place it flat in a tray. If you are wearing shoes with metal eyelets or buckles, those shoes also go in a tray separately. Even small items like keys, wallets, phones, and loose change usually must be placed in trays to avoid setting off metal detectors or holding up the line. The trays keep everything organized and allow for an orderly, standardized inspection process.

Using trays is standard practice at airports across the United States and many other countries. While the trays themselves are simple plastic containers, their role is essential to maintaining a streamlined security check and helping travelers move through checkpoints efficiently. Knowing what belongs in the tray before you reach the front of the line saves time and reduces stress.

Why do certain items have to go in the tray?

Certain items must be removed from your carry-on and placed in trays because they interfere with the X-ray imaging or metal detection equipment. Shoes often contain metal pieces such as eyelets, shanks, or buckles. Belts typically have metal buckles or clasps. These metal components can trigger alarms or obscure the view of other items inside your bag, requiring additional manual inspection if not removed.

Electronics like laptops, tablets, and e-readers need to be placed in trays and screened separately because their dense components can hide prohibited items or explosives in the X-ray image. Removing them ensures the scanner gets a clear picture. Liquids and gels must be taken out of bags and placed in a clear, quart-sized bag inside a tray to verify they meet the size limits and are not dangerous substances.

Also, personal belongings such as wallets, keys, coins, and cell phones contain metal and dense materials that can cause false alarms or require extra screening. Removing these items and placing them in trays prevents delays and helps security staff identify threats quickly.

By removing these items and scanning them separately, the security process becomes faster and more accurate. It reduces the chances of secondary screening, which can hold up lines and cause traveler frustration. Understanding why certain items must go in the tray helps you prepare and breeze through security checkpoints.

How does the tray system work during security screening?

When you reach the security checkpoint, a TSA or airport security officer will direct you to unload your pockets, remove shoes and belts, and take electronics and liquids out of your bag. You place each of these items in trays provided on a conveyor belt that leads into the X-ray machine.

Here’s a detailed example: Suppose you have a carry-on bag with a laptop, cell phone, wallet, keys, a jacket, liquid toiletries, and you are wearing sneakers and a belt. You will first remove your belt and place it in a tray. Then you take off your shoes and put them in a tray. Next, empty your pockets by placing your wallet, keys, and phone in the tray. Take out your laptop and lay it flat in a separate tray. Remove the quart-sized bag holding your liquids and put it in the tray. If requested, remove your jacket and place it in another tray too.

All these trays go one after another into the X-ray machine, where security officers monitor the screen to detect any suspicious or prohibited items. The trays help keep items organized and allow for clear, unobstructed images. After your items have passed through the scanner, you collect your trays on the other side, repack your belongings, and proceed.

If an item raises concern, security officers may pull it aside for additional screening, which can include manual inspection or use of chemical swabs. Being prepared and understanding the tray process reduces the chance of secondary screening.

What items typically go in the tray?

Travelers should be ready to place the following common items in trays at airport security:

• Shoes: Especially those with metal parts, sneakers, boots, or dress shoes with buckles.
• Belts: Belts with metallic buckles should be removed.
• Electronics: Laptops, tablets, e-readers, and sometimes larger cameras.
• Liquids and gels: Containers 3.4 ounces (100 milliliters) or less, all in a clear, quart-sized resealable plastic bag.
• Personal items: Wallets, keys, coins, phones, watches, and sometimes jewelry.
• Outerwear: Jackets, coats, hats, scarves, scarves, or gloves may be requested.
• Loose metal objects: Change, pens, hair clips, or other metal items found in pockets.

A useful approach is to create a mental or written checklist before you reach security. Removing these items systematically avoids the rush and confusion at the checkpoint. For example, put your liquids bag in an easily accessible pocket of your carry-on, so you can take it out quickly. Wearing slip-on shoes or shoes without metal can reduce what you need to remove.

Why does knowing what goes in the tray matter to travelers?

Knowing what belongs in the tray saves time and reduces stress. Travelers who arrive prepared can move through security checkpoints without holding up lines or causing confusion. Being organized also prevents forgotten items that might cause alarms, leading to secondary screening and delays.

For families traveling with children, this knowledge helps keep everyone on track. Preparing kids to remove shoes or carry electronics separately can avoid frustration. People with disabilities or mobility aids can plan ahead to inform security staff and arrange for assistance.

In addition, knowing what to expect helps travelers avoid last-minute repacking or removing items after being stopped by security officers. This respect for the process reduces anxiety, especially for first-time flyers or those unfamiliar with TSA protocols.

Ultimately, being ready benefits everyone by making the security process efficient and smooth, allowing travelers to focus on their trip rather than security hassles.

What are common terms travelers confuse with the tray and screening process?

Travelers sometimes confuse the tray with other parts of the security checkpoint:

• The scanner: The X-ray machine that images items in trays and carry-ons.
• The conveyor belt: The moving belt that transports trays into the scanner.
• Items that stay in bags: Not all belongings go in trays. For example, clothes, books, snacks, and some non-metal accessories usually stay packed.
• Liquids rules: Some think all liquids must be removed regardless of size, but only those exceeding allowed limits or not in clear bags must be screened separately.
• Metal detector versus body scanner: Some travelers confuse body scanners (which you walk through) with the tray screening process.

Understanding these terms and differences helps you follow instructions correctly and avoid confusion. For example, knowing that your laptop must be removed and placed flat in a tray, rather than just in your bag, can prevent delays.

What should you do next to get ready for airport security?

Before heading to the airport, review the latest TSA rules and airport-specific guidelines to know precisely what items are allowed and which must be removed. Here are practical steps to prepare:

1. Wear easy-to-remove shoes and belts: Choose slip-ons or shoes without metal when possible.
2. Pack electronics near the top of your bag: This makes them easy to access and remove quickly.
3. Place liquids in a clear, quart-sized resealable bag: Keep this bag in an accessible spot in your carry-on.
4. Empty pockets before security: Put wallets, phones, keys, and coins in your hand or a tray.
5. Organize carry-on bags: Keep items separated so you can remove required things without unpacking everything.
6. Arrive early: Give yourself extra time to handle unexpected requests or lines.
7. Communicate with security officers: If you have special items like medical devices or baby supplies, mention them upfront.

Following these steps helps you move quickly through the checkpoint and reduces stress for you and other travelers.

How can you handle special situations at security with the tray?

Travelers with medical devices, infant supplies, or mobility aids may face different procedures. For example, medications and medical liquids might be exempt from the 3.4-ounce liquid limit but still require inspection. Baby formula, juice, and breast milk can be brought through security but must be declared and screened separately.

If you use a wheelchair, prosthetic device, or other mobility aids, inform security officers before screening begins. TSA offers assistance and alternative screening methods to accommodate disabilities while maintaining safety.

In some cases, you might request a manual inspection of items rather than removing them into trays, especially if mobility or health concerns make removal difficult. Always listen carefully to instructions and ask questions if unclear.

Being prepared and proactive in these situations ensures a smoother experience while complying with security requirements.

Frequently asked questions

Can I keep my phone in my pocket, or does it need to go in the tray?

Phones generally need to go in a tray to get a clear X-ray image and avoid setting off alarms. Keeping a phone in your pocket might cause extra screening or delays, so it’s best to remove it and place it in the tray exactly as security directs.

Do I have to take my jacket off and put it in the tray?

Often, jackets and coats must be removed and placed in trays to allow clear screening. However, requirements can vary by airport and security level. Be prepared to remove outerwear when asked and follow the security officer’s instructions.

What size liquid containers can go in the tray?

Liquids must be in containers that meet the current TSA size limit—usually 3.4 ounces (100 milliliters) or less. All containers should fit inside a clear, quart-sized, resealable plastic bag, which you place in the tray for screening.

Are there exceptions for placing items in the tray?

Yes, medical devices, essential medications, baby formula, and breast milk can be exceptions. Always inform security officers about these items before screening. They will guide you through the correct procedures.

What happens if I forget to put an item in the tray?

If an item is missed, security officers will usually ask you to remove it and place it properly, which slows the process. Being prepared with a mental checklist helps avoid this delay and smooths your passage through security.

Can I keep my wallet in my pocket or does it need to go in the tray?

Wallets often contain metal and should be placed in the tray for screening. Carrying a small wallet or money clip can speed up the process, but it’s best to follow TSA instructions at the checkpoint for your specific situation.