It seems like most fabric stains come out more easily with hot water. Is blood just weird?
In: Biology
Think of taking a cold shower vs a hot shower. A cold shower makes you want to get out as soon as possible, while a hot shower makes you want to relax and stay in as long as possible.
This is how the proteins in our blood react to water. When the blood first contacts our clothes it dries up and attempts to hold on to the fabric of our clothing. The cold water penetrates and rehydrates the blood encouraging it to wash away. Hot water accelerates the binding process and allows the blood to cling onto the fabric faster, making it harder to wash away later.
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