Washing Machine: Why You Should Avoid Washing Laundry at 40°C
For years, washing clothes at 40°C (104°F) has been a standard setting for many households. It's seen as a balanced choice for effective cleaning while being gentle on fabrics. However, experts and environmental studies suggest avoiding 40°C washes whenever possible. This practice may not be as efficient or beneficial as it seems. Let’s explore why you should reconsider this temperature and how to optimize your laundry routine step by step.
Why 40°C Isn’t Ideal
Insufficient Stain Removal: Many stains, particularly oily or protein-based ones, require higher temperatures (above 50°C) to break down effectively. At 40°C, they may only fade, not disappear.
Encourages Bacterial Growth: Washing at 40°C doesn’t kill bacteria and allergens effectively. Germs, especially in items like gym wear, underwear, and towels, can survive and proliferate.
Detergent Inefficiency: Most modern detergents are designed to work best in cold (30°C) or hot (60°C) water. At 40°C, detergent enzymes may not activate fully, leading to suboptimal cleaning.
Wears Out Clothes: Prolonged washing at 40°C can weaken fabric fibers. Higher heat speeds up wear, and cooler temperatures are gentler on textiles.
Environmental Impact: While 40°C is less energy-intensive than hot washes, it’s still significantly higher than cold washing. By lowering the temperature, you can reduce your energy consumption and carbon footprint.
Step-by-Step Guide to Smarter Laundry Temperatures
