The U.S. Geological Survey interrupted its public safety announcements to warn people not to roast marshmallows over volcanoes.
The USGS Volcanoes account was responding to Twitter user Jay Furr, who asked: “Is it safe to roast marshmallows over volcanic vents? Assuming you had a long enough stick, that is? Or would the resulting marshmallows be poisonous?”
“Erm…we’re going to have to say no, that’s not safe. (Please don’t try!)”
The agency explained that volcanic vents can emit sulfur dioxide or hydrogen sulfide, which would make the marshmallows taste “BAD.”
If sulfuric acid from volcanic smog is combined with sugar, “you get a pretty spectacular reaction,” the USGS added.
The same Twitter user later asked about roasting hot dogs. His tweet was not answered.
The agency has been providing the public with regular alerts about the Kilauea volcano’s activity level since it erupted on Hawaii’s Big Island on May 3.