Found more info: "To set the record, all Evans had to do was take "any commercially available, unmodified 200 ml Capri Sun pouch," as Guinness World Records explained, and document himself consuming it "using the straw"—which must begin the challenge "still inside the plastic film and still glued to the side"—in around 18 seconds. After a few tries, on August 27, Evans pulled of his record-setting attempt: 16.65 seconds." I am nonplussed.