From Memorial Day to Labor Day, it’s estimated that more than 70,000 passengers will be screened at Newark Liberty International Airport.

Lisa Farbstein with the Transportation Security Administration in Newark shared some tips Friday for summer travelers on what can and can’t be brought on board a plane.

Farbstein explained that peanut butter is the most popular food item taken on aircraft, but she said it should be placed in a checked bag.

“Something like (peanut butter) needs to go in to your checked bag, not your carry-on bag because it's bigger than 3.4 ounces. And the reason is if you can spill it, spray, spread it, pump it or pour it,” she said.

Her second trip: bring an empty water bottle.

“You can bring an empty water bottle with you through the check point, and when you get to the other side, you can fill it up and save yourself a few bucks, so that's an important tip. Whether it’s an empty bottle or an empty thermos, bring it along,” Farbstein said.

For more specific information on any questions regarding carry-on and checked baggage, CLICK HERE.