questionedithistorytranslationsCurrent version This is the accepted version. added by Kasia June 5, 2012, 8:21 a.m. What is inside Swiss cheese holes? nitrogencarbon dioxidewater vaporairCarbon dioxide is produced by bacteria feeding on the lactic acid. In the Middle Ages, the holes were considered a sign of imperfection and cheese makers would try to avoid them.KasiaShare and bring new players to the game!0Very uninterestingToo difficultPoorly writtenIncorrect or questionableCorrect this question5Very interesting!reach: rather globalbiologycheesechemistrycuisinegaseshard simple questionsnatureVotes +5 Very interesting! globalquiz.org