Definition of Cold Water Washing

[Chetlaham]

What is the correct definition of cold water washing? P&G seems to state cold water as being a minimum of 90*F while Whirlpool defines cold water as being between 55-65*F. When detergent manufacturers talk about being able to wash in cold water, what temperature do they have in mind? Why is there such a discrepancy in listed temps?


https://pgpro.com/en-us/brands/tide-professional/tide-coldwater-system


https://producthelp.whirlpool.com/L...ting_Cold_Water_when_Warm_or_Hot_was_Selected

 

[henene4]

In the EU, generally, anything that doesn't require heating in most cases would be considered cold.

30C/86F would be low temp, but generally needs heating as it is above room temp. So wouldn't call that cold.

20C/68F could be considered cold IMO as under common circumstances that would be reachable without heating.



"Cold" isn't definable, so neither is cold water washing.
Some people feel 68F as cold in a room, I have my flat at 60-64F in winter and think that's fine.

So one could say anything that is using any warm water isn't cold anymore.
Or that anything under warm is cold, which could be as high as the 90F you mentioned.