The right way to use vinegar for towels
For towels that feel rough or smell musty, use vinegar as an occasional refresh, not every wash.
Add warm water to a basin or bucket, then add a small amount of white vinegar. Soak the towels for a short time, then rinse them well. After that, wash them normally with laundry detergent.
Do not use fabric softener on towels too often, because it can leave a coating on the fibers and reduce absorbency. A simple wash routine with the correct amount of detergent is usually better.
The right way to use vinegar for white clothes
For white clothes that look dull, vinegar may help refresh brightness, especially when the dullness comes from residue buildup. But it will not fix every stain, and it is not the same as bleach.
Before using vinegar on any clothing, check the care label. Some fabrics and elastic materials may not react well to vinegar. Whirlpool also says vinegar can potentially cause bleaching on some fabrics and may damage elastic.
A safe method is to test a small hidden area first. If the fabric looks fine, soak the item in diluted white vinegar, rinse it well, and then wash it normally.
What type of vinegar should you use?
Use distilled white vinegar only. Avoid apple cider vinegar, colored vinegar, or flavored vinegar because they may stain clothes or leave unwanted smells.
Also, do not use vinegar as your main cleaner. Laundry detergent is still the best product for washing clothes because it is made to remove dirt, oils, and body residue.
What not to do
Do not pour vinegar directly onto clothes without diluting it.
Do not mix vinegar with bleach.
Do not mix vinegar with detergent in the same step.
Do not use vinegar on delicate fabrics without checking the care label.
Do not use it every single wash.
Final thoughts
Vinegar can be useful in laundry, but only when used the right way. It may help freshen towels, reduce some odors, and brighten whites that look dull because of residue. But it is not a miracle product, and using too much can cause problems.
The best routine is simple: use the correct amount of detergent, avoid overloading the washer, rinse clothes well, and use vinegar only occasionally when needed.
Educational home-care tip only. Always follow your washing machine manual and clothing care labels