wont stop the toxins from poisoning you, most bacterial toxins are heat stable. the most problematic bacteria would E.coli O15:H7 since it produces a nasty toxin that cause uremic syndrome, and hemorrhagic diarrhea. its a problem when the bacteriophage is present which carries the plasmid for the toxins which infects bacteria giving them the toxin produciing abilities. some bacterial toxins come from lysogenic bacteriophages(viruses), otherwise the bacteria would be most harmless