The safest way of destroying bacteria is to use high heat or boiling water at 212 F.
High heat or boiling water at 212 F effectively kills most types of bacteria and is a common cleaning and sanitizing method for dishes and foods.
Most bacteria are destroyed and killed at temperatures above 140 F.
And when cooking food you should be sure to always cook the food to it's recommended internal temperature which can be as high as 165 F.
Pathogenic bacteria will grow quickly in food at temperatures between 40 to 140°F.
So in order to kill these types of bacteria, it's important to cook all foods to a safe internal temperature.
Hydrogen peroxide can also kill bacteria as well in other things that are not food.
Hydrogen peroxide can also kill some bacteria in your mouth as well.
Some bacteria, like staphylococcus (staph) and Bacillus cereus, produce toxins that are not destroyed by cooking.
Other bacteria, like Clostridium perfringens and Clostridium botulinum, can form heat-resistant spores that survive cooking.