Pasteurization of milk products does not eliminate which of the following?

Pasteurization is a thermal process used primarily to kill harmful bacteria and pathogens in milk and other beverages. However, it has limitations regarding certain substances that can be present in milk.

Toxins, such as those produced by certain bacteria (like Staphylococcus aureus), can be heat-stable and may not be eliminated through pasteurization. Additionally, anthrax spores, which are highly resistant forms of the bacteria Bacillus anthracis, are not effectively killed by standard pasteurization temperatures. Furthermore, pesticides can be present in milk due to agricultural runoff and are not affected by heat treatments such as pasteurization.

Given these points, the assertion that pasteurization does not eliminate any of the substances listed is accurate. Pasteurization's primary goal is the reduction of pathogenic microorganisms, not the elimination of all potentially harmful agents. Thus, the answer reflects the understanding that pasteurization has specific limitations concerning toxins, spores, and chemical contaminants.