Is there any benefit to the long cycles on a washing machine?

Posted by Forum_Lurker42@reddit | AskUK | View on Reddit | 115 comments

Both myself and my better half are habitual users of the 'fast cycle' that takes anywhere from 45-60 minutes. Spin and temperature adjustable according to one's preference.

Better half's mother will use the specific cotton wash, which achieves the same results in a lightning fast 3.5 hours. Is there any benefit to the longer wash? Base level logic would dictate the quick wash saves time, water, and electricity. Am I missing some esoteric washing machine knowledge?

The end result has been that the washing machine has been in use all day, and I'm yet to wash my shirts for the week.