More bloody washing stuff

[TeaBug]

Can I have some opinions on washing stuff at 30c. I just can't make myself do it as I feel like if the water's not hot nothing will be clean enough. I wash at 40c as it is, which isn't all that hot anyway. Can anybody explain how stuff gets clean in cool water. I mean, really convince me?

I've washed everything on 30 for years, it's all clean when it comes out of the machine.

I have always washed at 30C unless sickness bugs or extra smelly/sweaty. So mattress protectors are 40C but duvet cover is 30C. Once a month the towels are 40C, but other 3 weeks its 30C. Use bio instead of nonbio, and powder is better than liquid or pods.