Listeria happens when machines aren’t cleaned properly, ie: completely stripped down, which is unlikely to happen in a home-based operation. I mean it’s not like they had 50 ice cream makers on the go to make millions of dollars - like Boar’s Head deli meats (July 2024), Rizo-López Foods cheese (Feb 2024), and in Canada Danone’s plant-based milk (Aug 2024), and Maple Leaf’s 2008 deli meat debacle that resulted in 23 deaths. None of those companies were shut down because of their lazy oversight.