Bright White Socks Again — No Bleach Required

Wash whites separately, and don’t let them sit in the hamper too long before washing.
Avoid high heat, which can set stains rather than lift them.
Give the machine room — overloading it means clothes don’t get properly cleaned.
Dry in sunlight when you can; it acts as a mild, natural bleach.
None of these methods are as harsh as bleach, so they’re gentler on elastic and fibers over time — worth keeping in rotation even after your socks are back to bright white.