A Concord teen attempted to make ‘putty’ that would emit different colored smoke. He drew a hazmat response.

Two firefighters and the teen were brought to the hospital as a precaution.

The scene at 96 Old Bedford Road in Concord.
The scene at 96 Old Bedford Road in Concord. –Concord Fire Department

A teen’s attempt to make some sort of “putty” that would emit “different colored smoke” when set on fire went awry Tuesday night, landing him and two responding firefighters in the hospital as a precaution, according to the Concord police and fire departments.

Police and fire officials responded to the scene at 96 Old Bedford Road around 7:45 p.m. when a passerby called 911 to report smoke emanating from the home, a news release said.

When firefighters went inside, they found “a substance smoldering in a pot on the stove inside the kitchen,” the release said.

“Firefighters quickly extinguished the smoldering pot and determined that the substance inside was not food, but a mixture of chemicals,” according to the release, noting that more authorities were called in to what became a tier 1 hazmat incident. “The District 3 Massachusetts Department of Fire Services Hazardous Materials unit was called to the scene to determine what the mixture of chemicals was. The Massachusetts State Police Bomb Squad was also called to the scene.”

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Police spoke to the adult teen about his concoction, and officials were searching the home to see if there were any other hazardous substances.

“At first [firefighters] thought that they were just dealing with a typical kitchen fire, so yes when they see something a little out of the ordinary, it is alarming because you really don’t know which way it may go,” Concord Fire Chief Thomas Judge said. “As it turns out it wasn’t all that serious it appears.”