I read that washing clothes with detergent in low temperature doesn’t kill germs.
I also read that regular hand soap doesn’t kill germs too – it just helps to wash away germs from hands in connection with water.
Does laundry detergent do same?
Does washing clothes in low temperature with detergent wash away germs to any extent?
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Molecules broadly have two types of affinity: one for water (hydrophilic), one for oil (hydrophobic). The two don’t mix. Some molecules, like the main important ones for soap, interact with *both* very well on different sides, allowing it do essentially dissolve oil *into* water by acting as a middle man. This will dislodge oily substances, bacteria, and in many cases–it can also break apart the membranes of microbiological life because of how these membranes are structured around using similar molecules to maintain integrity. However, this effect is somewhat effected by temperature, and bacteria are often built to be very resistant to their environment.
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