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A Miami-based flight attendant revealed the grimiest places on airplanes and it turns out that the dirtiest place on an aircraft is not the tray table or toilets — it’s actually the seat-back pockets.

Brenda Orelus, who goes by the name of Flight Bae B on TikTok, revealed to her 98,000 followers that the pockets are riddled with germs since they’re rarely cleaned.

On top of that, she revealed that she has seen passengers put non-sanitary items inside, from food to used diapers.

“Did you know seat-back pockets are the dirtiest surface on the aircraft?” the flight attendant said in her video posted earlier this week. “They’re dirtier than the lavatories, they’re dirtier than the seat cushions and they’re dirtier than the tray tables.”

“It’s because they’re never cleaned. Unless somebody vomits or there’s something ooey, gooey and pus coming out of there, it doesn’t get cleaned.”

As of Thursday, the video has been watched nearly 30,000 times.

Orelus explained that usually the cleaners will do a surface check and remove the food and any trash, but won’t wipe the pocket down.

“All of those germs have accumulated and there’s no real regular maintenance or cleaning of those surfaces whereas lavatories are regularly wiped down and sanitized,” she said.

Several travelers expressed their disgust at the new information.

“I usually put my phone there,” said one stunned passenger, while another admitted to also using the pocket as a phone holder. “Same — all the time. After it’s plugged in the charger that’s my phone’s safe space.”

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One traveler confirmed that they had once seen a parent use the pocket to dispose of a diaper.

“This is very true! I once saw a parent place a used diaper in the seat back pocket,” they said.

Despite the overall reaction to the horrendous revelation, some commenters who claimed to be airline cleaners said Orelus’ video was false and that pockets are wiped down regularly.

“We actually have two teams for each plane. One takes trash and vacuums the other team deep cleans each one,” said one of the cleaners.

Another cleaner agreed, saying that the pocket will be cleaned depending on how long they have before the plane has to be sent out again.

“Typically you get an hour and 30 minutes on the bigger airplanes but for quick turns, it’s about 15 to 30 min with a team of six you aren’t wrong but you aren’t 100 percent right,” said the other cleaner.

“It’s supposed to be cleaned but people may skip over it for [convenience].”

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In a follow-up video viewed over 217,000 times, Orelus posted about five things she wouldn’t do on an airplane, and one is another foul flight tendency she’s witnessed on more than one occasion.

“Walk barefoot in the airplane cabin, especially the airplane lavatory … y’all it is not water on the floor,” she said.

“So, you do with that information as you like.”