1. always wash new jeans separately. Dark wash jeans – and in fact, any jeans that you want to stay the same color as they were when you purchased them – should be washed separately the first time.
The dye in most jeans transfers readily during the laundry cycle to its fellow bathers. Let new jeans enjoy an exclusive bath after coming home.
2. turn jeans inside-out before washing.
Washed jeans should be laundered inside-out in warm or cool water to prevent fading (unless you want fading, of course.)
Keep both new and washed jeans away from laundry detergents with bleach for the same reason. This is one time you’ll want to use a basic laundry detergent without additives or boosters.
3. avoid frequent tumble drying and dry cleaning.
Avoid frequent tumble-drying and dry cleaning. Heat may damages fibers, and dry cleaning may cause discoloration.
When necessary, tumble dry while the dryer drum is cool and use delicate settings. To extend the lifespan of jeans especially, lay them flat to dry whenever possible instead of tossing them into the dryer.
4. don’t spot clean jeans.
Don’t try to spot-clean denim. Instead, wash the entire pants so you don’t create a faded area where the spot or spill was.
5. if needed, iron jeans while damp.
Iron the denim while it is still damp.