My granny’s towels were always rough and crunchy. I always thought it was because she dried them on the line in a very hot climate. I assumed they were cooked or something.
My towels have never gone crunchy although they’re not as soft as when I bought them.
I‘ve used various different soaps over the years, including washing up liquid when I’ve been poor or run out of the proper stuff. I never use fabric conditioner. Everything is dried on the rack or outdoor, I’ve never had a rumble drier. Never any crunch.
Like others, I hate the residue of soap on my laundry so I use less soap, run it at the allergy setting, and run a rinse cycle immediately afterwards. I’m always surprised by how much soap comes out in the second rinse.
No idea what makes towels crunchy (and
platinumsage , I get how very rough they can get, my Granny’s towels were not only crunchy but stiff as a board too) or not crunchy.
On reflection, maybe my Granny just used a shit-tonne of soap in her laundry to make them like that. Like the punks using soap to get their mohicans to stand upright.