We just came back from vacation, and I noticed a few small ants roaming around my kitchen sink. I started smushing them, and then I grabbed my spray bottle of star san... A quick squirt of the sanitizer killed the ants immediately. It was amazing. From what I read with ants, they will keep coming back until you remove the scent trail they leave, so I started spraying the entire area and killed a few more ants. I then saw a yellow jacket stuck between my window and window screen and I sprayed that with the Star San and it killed the bee as well. What is this stuff that we are using to clean our beer supplies that is strong enough to kill bugs?