A Pinterest post from Creative Homemaking shares a simple yet effective method to keep your white towels looking bright and feeling fluffy, using only water and white vinegar.
Start by filling a large tub with hot water, ensuring there is enough room for your towels to soak without being crammed together — a clean kitchen sink works perfectly for this.
Add 1 cup of white vinegar to the water and mix it well. Soak the towels in this solution for about 30 minutes or a bit longer if they show signs of yellowing or stains.
Wring out the excess liquid from the towels before running them through a regular wash cycle. While drying them adds to their fluffiness, check care labels first to avoid damage.