All alcohols are NOT created equal! Alcohols may be flammable, but there is one alcohol whose flammability is NOT its primary hazard.
Most know about ETHANOL. It is used in fuels, as well as in food and drinks. It is flammable, and its flammability is its PRIMARY HAZARD.
But its sister, METHANOL, is VERY DIFFERENT. Both are flammable, but METHANOL is very toxic, making its TOXICITY its PRIMARY HAZARD. A methanol dose of approximately 1 g/kg (0.016 ounces/pound) of body weight is potentially lethal.
Some of you may recall the fatalities during COVID from Methanol poisoning. There was such a demand for ethanol to make hand sanitizers that some companies began using METHANOL in their hand sanitizers. In one such case I was consulted on, the container stated the sanitizer contained METHANOL, and it was used by a group of people, one of whom died, and several others became very ill, hospitalized for weeks.
The FDA created a webpage in 2020 to warn of these hazards and recalled dozens of brands due to methanol contamination.