If you've traveled or been to an airport, you'll know the food options and snacks can be a little high. TSA liquid limitAs you probably know, you're now allowed liquids that are more than 3.4 oz. At least not more than 3.4 oz. Those little hummus cups are fun with the hummus on one side and pretzels on the other, but more than 3.4 oz. Peanut ButterSpoon with Peanut Butter HandmadePictures loading...On top of peanut butter not allowed at 3.4 oz.