I work daily with 70% ethanol for sanitizing, and 95% ethanol for cleaning. I can never get the 70% stuff to light. Even with an open flame. By the way, most h

I work daily with 70% ethanol for sanitizing, and 95% ethanol for cleaning. I can never get the 70% stuff to light. Even with an open flame. By the way, most hand sanitizer is around 70% or less. Above 70% and it doesn't kill bacteria as well.