To remove mildew stains from towels, soak them in a mixture of hot water and vinegar (1 cup vinegar per gallon of water) for an hour.
Then wash with a scoop of baking soda on the hottest setting. If needed, repeat or use a mildew stain remover before drying in the sun.
Understanding Mildew Stains

What is Mildew?
Mildew is a type of mold that thrives in warm, damp environments. It is a thin, black, or white growth produced by mold fungi, particularly in organic materials when exposed to moisture.
Mildew can cause a musty odor and is often found in homes, particularly in damp areas.
Common Causes of Mildew on Towels
Towels become a breeding ground for mildew when they remain wet for too long. This can happen when towels are not dried properly after use or when they are left in a humid bathroom.
Overloading the washing machine can also prevent towels from getting clean, leading to mildew growth.
Identifying Mildew Stains on Towels
Mildew stains are typically black, blue, or green spots or patches that can make your towels look dirty even after they have been washed.
These stains often come with a musty smell, indicating the presence of mold and mildew.
Health Implications of Mildew
Using towels with mildew can lead to skin irritations and respiratory issues. It is essential to address these stains not just for cleanliness but also to maintain good health.
Preventive Measures to Keep Towels Mildew-Free

Proper Towel Storage
Store towels in a dry, ventilated area. Avoid piling damp towels on top of each other as this can promote mildew growth. Instead, hang them up to allow air circulation.
Importance of Drying Towels Completely
Always ensure your towels are completely dry before folding and putting them away. Use a high heat setting on your dryer or hang them in a place with good airflow to speed up the drying process.
Best Laundry Practices
Wash your towels regularly using hot water, which helps to kill mold spores. Avoid overloading the washing machine and use a good quality detergent.
Natural Remedies to Inhibit Mildew
Consider adding a cup of white vinegar to the rinse cycle of your wash. This natural remedy can help prevent the growth of mildew by breaking down the organic matter that mold feeds on.
Step-by-Step Guide to Removing Mildew Stains

Preparation: Supplies and Safety
Gather your supplies including white vinegar, baking soda, gloves, and a brush for scrubbing. Always wear gloves to protect your skin when handling cleaning products.
Step 1: Pre-treatment with Vinegar or Lemon Juice
Soak your towels in a solution of hot water and white vinegar or lemon juice. This will help to loosen the mildew stains and kill the spores. Allow the towels to soak for at least one hour.
Step 2: Washing with Hot Water and Disinfectant
After pre-treating, wash the towels on the hottest setting your washer offers. Add a scoop of baking soda or a specific mildew cleaner to the wash to help remove the stains and disinfect the fabric.
Step 3: Sun-Drying or Hot Dryer
Once the wash cycle is complete, dry the towels in the sun, which has natural bleaching properties, or in your dryer on the highest heat setting. This will help to kill any remaining spores and remove the last of the stains.
Additional Tips for Stubborn Stains
If stains persist, consider repeating the soak or using a brush to gently scrub the affected areas before rewashing. For extremely stubborn stains, a mildew stain remover might be necessary.
Maintenance Washes
Regular maintenance washes with hot water and vinegar can keep towels smelling fresh and free of mildew. Incorporate this routine into your laundry habits to prevent future mildew problems.
FAQs About Removing Mildew Stains from Towels
How can I prepare a solution to soak towels with mildew stains?
To prepare a soaking solution, mix hot water with vinegar at a ratio of 1 cup of vinegar per gallon of water.
How long should towels with mildew stains be soaked?
Towels with mildew stains should be soaked in the vinegar and hot water solution for an hour.
What should I use to wash the towels after soaking them?
After soaking, wash the towels with a scoop of baking soda on the hottest setting your washing machine offers.
What if the mildew stains persist after the first wash?
If stains remain, repeat the soaking and washing process or use a specialized mildew stain remover before the next wash.
Is there a specific way to dry the towels after washing?
Yes, dry the towels in direct sunlight if possible, as the sun’s UV rays help to kill any remaining mildew spores.
Final Thoughts
To effectively remove mildew stains from towels, pre-soak them in a hot water and vinegar solution, followed by a hot wash with baking soda.
For persistent stains, consider a specialized mildew stain remover. Lastly, sun-drying the towels can aid in eliminating any remaining mildew traces.