If you've ever run a fried chicken shop or ghost kitchen in the US, you've definitely lived through this Yelp review: "Food arrived hot but soggy."

The customer says it was hot, sure—but the crunch was gone. And you know exactly what happened: when that batch of chicken tenders came out of the fryer, it had a crunch you could hear. Twenty minutes later, sealed inside a clamshell, it's been steamed by its own moisture into a soggy coating.

This isn't a frying problem. It's a packaging physics problem.

In today's blog post, I want to start with the "crisp crisis" in American fried-food delivery, give you a few packing tips you can put to use the moment you're at the pass, and then wrap up with a detail we only figured out after stepping on a few landmines—how to choose the right grease-resistant coating and size match for your paper trays so your fries don't go soft at the bottom of the box.

ONE

Why do fried foods get soggy in a box? First, let's understand "moisture migration."

Right out of the fryer, the exterior moisture of chicken wings and fries has already been driven off by the hot oil, forming a dry, crispy shell. But the inside of the food is still dissipating heat, and moisture keeps migrating from the inside out. If at this point you seal it into an airtight package, the steam can't escape, hits the slightly cooler lid, condenses into water droplets, and drips back down.

The result: the heat's still there, but the crispness is gone.

The U.S. foodservice packaging industry has been tackling this problem for years. Sabert's Twist & Crispy won the 2025 AmeriStar Packaging Award, and its core design is a switchable vented lid—rotate it to the perforated position for fried items to give steam a way out; rotate it back to sealed mode for sauce-heavy items. Anchor Packaging's Crisp Food Technologies line is even more direct: the base has raised airflow channels, and the lid has anti-fog vent holes. In lab comparison tests, it keeps fried foods' temperature and texture for nearly twice as long.

But these things share a common trait: expensive, and only cost-effective with large-volume purchasing.

For most single-location fried chicken shops, food trucks, or just-starting ghost kitchens, the paper tray + paper box combo is the realistic choice. The problem is that ordinary paper trays aren't grease-resistant, or their grease-resistant coating isn't tough enough.

Practical tips: How do you use paper trays to actually "keep it crispy"?
Tip 1: Don't let fried food sit in its own oil

What are fries and popcorn chicken most afraid of? Not getting cold—oil pooling at the bottom. If an ordinary paper tray doesn't have an effective grease-resistant coating, the oil will seep into the paper fibers within minutes, the tray softens and collapses, and the bottom of the food sits soaking in a layer of warm oil. That crispy shell starts dying from the bottom up.

The job of a food-grade grease-resistant coating isn't "making the paper feel slippery"—it's forming a barrier between the paper fibers and the grease. Pour a spoonful of hot oil on it, and it should bead up and roll off, not soak in instantly. When choosing paper trays, drip a drop of oil on a sample, wait thirty seconds, and check whether there's any show-through on the back. It's the dumbest but also the most accurate test.

Tip 2: An inch of size difference makes a grade of difference in crispness

I've seen way too many shops use the same size paper tray for everything. Wings in the large tray, fries in the large tray, even a chicken sandwich crammed into the same one.

Wrong.

The depth and bottom area of the paper tray determine how spread out the food is. Fries need a shallow, wide tray so steam can escape from above, rather than piling up deep and stewing each other. Fried chicken needs a slightly deeper tray to trap excess oil in the bottom grooves, while leaving gaps between pieces so they don't touch each other and go soft.

If you're selling a combo—fries and chicken nuggets in the same box—then use a compartmented or tiered paper tray, or at least lay the fries next to the chicken rather than underneath it. Fries pressed under hot chicken, with steam coming down from above and chicken oil soaking them from below, are ruined in three minutes.

Tip 3: The paper tray isn't the seal—the lid is

The paper tray itself isn't responsible for sealing. Its job is to catch oil, support the food, and keep the bottom from sitting in oil. Ventilation is handled by the holes in the lid, or simply by not fully snapping the takeout box shut. Many U.S. fried chicken shops use clamshell boxes that have micro-perforations themselves, but if you stuff the paper tray so full that it presses against the lid, the holes get blocked.

Leave at least half an inch of headspace between the paper tray and the lid. Fried food needs that space for steam to circulate, rather than hitting the lid directly and condensing into water.

TWO

The Mike who runs a fried chicken food trailer in Austin, and his 200 bad reviews

Last fall, I met a food trailer owner in Austin named Mike who runs a fried chicken trailer. His Nashville hot chicken was genuinely good—the balance of cayenne and brown sugar was better than a lot of chain spots. His Google Reviews were all five stars for the first three months, until he got on DoorDash.

Within two months, his rating dropped from 4.8 to 4.2. The bad review keywords were highly concentrated: "soggy," "sad fries," "greasy bottom."

At first Mike thought it was the drivers' fault. He switched to a shorter delivery radius, added insulated bags, and even drove deliveries himself for a few days. The crispiness improved, but the bad reviews didn't stop. The problem was the packaging.

At the time he was using a very thin generic paper tray, bought by the case from a restaurant supply store—cheap, sure, but cheap. I told him to do one thing: after the food was ready, let it sit for twenty minutes, open the box, and lift up the paper tray to look at the bottom. He sent me a photo—the bottom of the tray was translucent. The oil had completely soaked through.

That paper tray did absorb some oil in the first five minutes, but once it was saturated, it turned into a soggy oil pad. The fries sitting on it were basically soaking in cold oil.

Mike switched to white cardstock trays with a food-grade grease-resistant coating, and changed the sizing from a one-size-fits-all large to a shallow wide version for fries and a medium-deep version for chicken pieces. He also changed the takeout box's closure from "snapping all four sides shut" to "snapping three sides and leaving one slightly open" to let steam escape.

Three weeks later, his DoorDash rating was back to 4.7. The word "soggy" disappeared from his bad reviews. He texted me something I still remember to this day:

"I didn't change my chicken. I changed what's under it."

THREE

If you're also looking for "the kind of paper trays Mike switched to"

Our food paper trays are built specifically to tackle these three pain points in American fried-food takeout:

Food-grade white cardstock / kraft paper material with a grease-resistant coating. Not that fake grease-resistant kind that feels slick but lets oil soak right through. The coating forms an effective barrier on the surface of the paper fibers, so when you load them with hot fries and fried chicken, the bottom doesn't leak, doesn't sag, and doesn't leave your food sitting in a pool of oil.

Multiple sizes, matched to the food, not to the box. Shallow and wide for fries and onion rings, medium-deep for wings and tenders, small for sliders or sides. You can mix and match — no need to stockpile a warehouse full of one size.

Two looks: white cardstock and kraft paper. White cardstock is clean and fits modern fried chicken spots going for a branded feel; kraft paper has that unbleached texture that pairs perfectly with a craft casual style. Both are food-grade, and both have a grease-resistant coating.

If the paper trays you're using now go translucent at the bottom twenty minutes after serving, or you pull out the fries and find a layer of oil at the bottom of the box — your paper trays aren't doing what they're supposed to do.