What potential danger remains in water even after boiling successfully destroys the living microorganisms causing contamination?

Answer

Toxic metabolic waste products left by the bacteria

Boiling serves to kill microorganisms, but certain bacteria can leave behind toxic metabolic waste products (toxins) that can remain in the water even after the organisms themselves have been destroyed by heat.

What potential danger remains in water even after boiling successfully destroys the living microorganisms causing contamination?
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