Does sauteing onions produce alcohol or something similar to alcohol? I came up positive on test for alcohol after eating sautéed onions.

SCRAM bracelet recorded alcohol in my system from 5 pm to 7 am. I did not drink alcohol, or use alcohol to make the onions. I read on another site about how cooking process of making sauteed or grilled onions can produce glycerol from the onion sugar and the heat from cooking. Glycerol is actually two alcohols.

Could the onions have caused this?
Some conditions can cause alcohol to be produced in the human body (look up auto-brewery syndrome). Sauteed onions are common enough that if they made people come up positive on alcohol tests, I bet we would all know it.