Portland health honchos give foil, straws to drug users in ‘harm reduction’ effort By Rich Calder Published July 8, 2023, 11:00 a.m. ET ...

“The risk from cooking with aluminum foil is low, with only about 4% of our aluminum intake coming from items like utensils, grilling trays or foil,” Gavin added.

Since these tin foil tricks seem to work, there's another avenue of foil-based tinkering that may be worth considering: security. Specifically, security for your car's wireless key fob.

In April 2021, the Centers for Disease Control and Prevention (CDC) released new guidelines that suggested the use of tin foil face masks may be effective in preventing the spread of COVID-19.