Advocating for washing laundry in cold water is primarily driven by energy conservation and environmental considerations. Here are some reasons why cold water is often recommended for laundry:
Energy efficiency: Heating water accounts for a significant portion of energy consumption in laundry machines. By using cold water, you can reduce the energy required for heating, leading to lower electricity or gas usage and decreased environmental impact.
Fabric preservation: Hot water can cause certain fabrics to shrink, fade, or lose their shape. Cold water is gentler on clothes and helps maintain their color, texture, and overall quality, especially for delicate or sensitive fabrics.
Stain removal: Cold water is effective for most everyday stains, and some stains even respond better to cold water treatment. Hot water can set certain stains, making them more difficult to remove later.
Convenience: Using cold water means you don't have to sort your laundry based on water temperature requirements. It simplifies the process and saves time and effort.
On the other hand, dishes generally require hot water for effective cleaning due to several reasons:
Grease and oils: Many dishes, especially those used for cooking or eating greasy foods, accumulate oils and grease residues that are better dissolved and removed with hot water.
Bacteria and food particles: Hot water helps kill bacteria and sanitize dishes more effectively. It also helps loosen and remove food particles, making the cleaning process more thorough.
Tough stains and residues: Certain foods, sauces, and beverages can leave stubborn stains or residues on dishes, and hot water can aid in their removal.
Greasy cookware: Pots, pans, and baking dishes often require hot water to dissolve and remove stubborn grease and baked-on residues.
While dishes may not contain bodily secretions like undergarments, they can still harbor bacteria, germs, and food remnants that can pose health risks if not properly cleaned. Hot water helps ensure a higher level of cleanliness and sanitation.
It's important to strike a balance between energy conservation and cleanliness. By following water-saving practices while washing dishes, such as using a dual-basin sink, turning off the faucet when not needed, or using water-efficient dishwashers when possible, you can minimize water waste while still maintaining good hygiene standards.