Life Super Bowl: Before making guac for your viewing party, the FDA has some advice for you December 21, 2018February 1, 2019Zlati Meyer, USA TODAYComments Off on Super Bowl: Before making guac for your viewing party, the FDA has some advice for you The concern is that when you cut into an avocado, the knife could bring pathogens on the peel to the edible fleshy part.