Yesterday at Mom’s house, an entire cheesecake took a nosedive when she tripped over the dog. Splat - half on tile, half on carpet. We all shared a dismayed look (no cheesecake?) before a chorus of “5-second rule!” as we lept to salvage what slices we could.
Which, of course, got me to a-wonderin’. Outside of a greed for cheesecake, is there any reason to think the 5-second rule makes sense? Are there bacteria on floor tile which would be dangerous to ingest, or are floors considered dirty for no good reason? What about carpet? Does more time exposure = more contamination possibility? (would it make just as much sense to have a “5-minute rule”?)