How to Get White Clothes White Again, Without Damage
To get white clothes white again, remove body oil and detergent residue with heavy-duty laundry detergent, then use oxygen bleach according to the care label and product directions. A 1-6 hour soak, a correctly sized warm or hot wash, and complete rinsing restore most washable cotton and linen; chlorine bleach is not the safest default. […]