Human stomach acid is corrosive enough to dissolve metal razor blades
The hydrochloric acid produced by the human stomach is potent enough to dissolve steel, serving as a brutal chemical barrier that neutralizes most ingested pathogens within seconds.
Human stomach acid maintains a highly corrosive pH level between 1.5 and 3.5, which is sufficient to dissolve a metal razor blade over the course of several hours. Parietal cells in the stomach lining secrete up to two liters of this hydrochloric acid daily to facilitate protein digestion and eliminate harmful bacteria.
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