I always wash jeans in cold water and hang to dry. I don't care what anyone says about preshrunk jeans. I have a super hard time finding jeans that are long enough (I'm a 6' tall woman with a 35" inseam) and that fit my comfortably as I'm low-waisted. So, I can't afford to lose even the centimeters that a dryer can shrink from the length of a pair of jeans. I also hang almost all of my shirts to ensure the arms stay the proper length. I've had someone try to "help" with my laundry and throw everything in the dryer together. I lost 5 articles of clothing due to their "help" from a single load. Pants were too short, sleeves were too short, the shirt itself was too short, whatever. I can't afford to buy new clothes because they shrink. It's easier just to hang them up to start with.
Depends on the Jeans- check labels/tags- 100% cotton that are Not preshrunk, Will do better hung dry, Yes they will shrink in the dryer, be sure to wash in Cold water! Preshrunk cotton or blends do ok in the dryer on medium heat, they will restretch when you wear them. Stretch jeans do ok in dryer on medium heat-will restretch when wearing. I wash all my jeans in Cold water extra rinse-its the detergent that is Not rinsed out in a single rinse cycle that will damage the fabric!
I think it depends on how much stretch the denim has in it to begin with. I throw mine in the dryer just long enough to get rid of that stiff feeling (about 5-10 minutes), and then I line dry from there. I think they last longer that way, and with the trouble I have finding a good fit, the extra time is worth it. I don't like how they loosen up after a few hours....I find myself pulling them up as the day goes on.
Well, that depends....if they are snug when you wash them, then putting them in the dryer will make them even tighter. But, sometimes that's a good thing because if they are too loose to begin with, the dryer will help. Also, I like to hang a lot of my clothes because they look better (and last longer) to me.
I don't especially enjoy hanging them though, much easier to throw everything in the dryer.....