Hot water cleans best because it speeds up the chemical reaction between the detergent and the water. This means that it takes less time to wash and less detergent. When you wash your clothes in hot water, they will smell clean and fresh the next day.
Lastly, hot water can sometimes make cleaning faster, but cold water works just as well for most modern tasks and is much better for the environment. Gebhardt said in Seventh Generation’s energy audits, which look at both transportation and production, that 92% of the damage to the environment is caused by people using their products and using up heat.
First is the soap. Soap dissolves better in cold water than in hot water, but grease dissolves better in hot water. Because cold water keeps soap from getting thinner, you can test this by washing your hands and noticing how much faster the soap rinses off when you use cold water.
When you heat water, its molecules move faster and hit each other more often. Because of this, the space between molecules can be filled by more solvents. So, hot water may be able to dissolve much more than cold water. It’s the best way to clean any kind of sugar, syrup, or salt crust.
When deciding whether to wash your load in cold or hot water, there are a few important things to think about. It’s not just about saving money. Cold water is best for things that are easily broken and regular loads, while hot water is best for things that are very dirty and have grease stains. If you don’t know why the label on an item of clothing says to wash it in hot water, we’ve put together a guide to explain everything you need to know.
Washing your clothes in cold water isn’t as good at getting rid of germs as washing them in hot water. If you use cold water, it’s likely that less bacteria will die. Most of the time, hot water is best for cleaning.