Guide 8 min read

How to Care for Your Period Underwear: A Step-by-Step Guide

How to Care for Your Period Underwear: A Step-by-Step Guide

Period underwear is a game-changer for managing menstruation, offering comfort, convenience, and an eco-friendly alternative to disposable products. However, to maximise its lifespan and maintain its performance, proper care is essential. This guide provides a comprehensive, step-by-step approach to washing, drying, and storing your period underwear, ensuring it remains a reliable and comfortable part of your period routine. You can also learn more about Periodunderwear on our website.

1. Initial Rinse and Pre-Wash

This is arguably the most crucial step in caring for your period underwear. Prompt rinsing helps prevent stains from setting and reduces odour. Think of it like this: the longer blood sits, the harder it is to remove.

The Importance of a Quick Rinse

Prevents Staining: Blood contains proteins that can bind to fabric fibres, leading to stubborn stains. Rinsing immediately after use helps remove these proteins before they have a chance to set.
Reduces Odour: Lingering blood can create unpleasant odours. Rinsing helps eliminate the source of the odour.
Easier Washing: A pre-rinsed garment is significantly easier to clean in the washing machine, requiring less detergent and wash time.

Step-by-Step Rinsing Instructions


  • Remove the Underwear: As soon as you remove your period underwear, head to the nearest sink or shower.

  • Rinse with Cold Water: Use cold water only. Hot water can cause the blood to coagulate and set into the fabric, making it harder to remove. Run cold water through the gusset (the absorbent part) until the water runs clear. This may take a few minutes, depending on the amount of blood absorbed.

  • Gently Squeeze: Gently squeeze the gusset to remove excess water. Avoid wringing or twisting the underwear, as this can damage the fibres and the absorbent layers.

  • Optional: Add a Mild Soap: For extra cleaning power, you can add a small amount of mild soap (such as a gentle laundry detergent or even hand soap) during the rinsing process. Ensure the soap is thoroughly rinsed out before proceeding.

What to Do If You Can't Rinse Immediately

Life happens, and sometimes you can't rinse your period underwear right away. In these situations, try these alternatives:

Dry Bag: Carry a waterproof bag (like a wet bag) to store the used underwear until you can rinse it. This will help contain any odour and prevent staining other items in your bag.
Soak in Cold Water: If you know you won't be able to wash the underwear for a day or two, soak it in a basin of cold water until you're ready to wash it. This will help prevent the blood from drying and setting.

2. Washing Machine Settings and Detergents

Once you've pre-rinsed your period underwear, it's time to wash it in the washing machine. Choosing the right settings and detergents is crucial for effective cleaning and maintaining the integrity of the fabric.

Choosing the Right Washing Machine Settings

Water Temperature: Always use cold water. As mentioned earlier, hot water can set stains and damage the absorbent layers of the underwear. Cold water is effective at removing blood and other bodily fluids.
Wash Cycle: Select a gentle or delicate cycle. This will help prevent excessive wear and tear on the fabric and elastic. A normal cycle may be too harsh and could shorten the lifespan of your period underwear.
Spin Cycle: A low spin cycle is recommended. High spin cycles can be too aggressive and may damage the absorbent layers. If your washing machine has an option to reduce the spin speed, select it.

Selecting the Right Detergent

Mild Detergent: Choose a mild, fragrance-free, and dye-free detergent. Harsh chemicals and fragrances can irritate sensitive skin and damage the absorbent layers of the underwear.
Avoid Fabric Softeners: Fabric softeners can coat the fibres of the underwear, reducing their absorbency. They can also leave a residue that can irritate the skin. Avoid using fabric softeners altogether.
Avoid Bleach: Bleach is too harsh for period underwear and can damage the fabric and elastic. It can also reduce the absorbency of the gusset. Never use bleach on your period underwear.
Enzyme-Based Detergents: Consider using an enzyme-based detergent. These detergents contain enzymes that break down blood and other bodily fluids, making them very effective at cleaning period underwear. However, always follow the manufacturer's instructions and test the detergent on a small, inconspicuous area of the underwear first to ensure it doesn't cause any discoloration or damage.

Washing with Other Clothes

Period underwear can generally be washed with other clothes, but there are a few things to keep in mind:

Wash with Similar Colours: To prevent colour bleeding, wash your period underwear with similar colours. Avoid washing them with dark or brightly coloured items that may bleed.
Avoid Washing with Items with Zippers or Velcro: Zippers and Velcro can snag and damage the delicate fabric of period underwear. It's best to wash them separately or in a laundry bag.
Use a Laundry Bag: For extra protection, you can place your period underwear in a laundry bag before washing. This will help prevent them from getting tangled with other clothes and reduce wear and tear.

3. Drying Methods: Air Drying vs. Machine Drying

How you dry your period underwear is just as important as how you wash it. The wrong drying method can damage the fabric, elastic, and absorbent layers.

Air Drying: The Preferred Method

Air drying is the best way to dry period underwear. It's gentle on the fabric and elastic, and it helps prevent shrinkage and damage to the absorbent layers.

How to Air Dry:

  • Gently Squeeze: After washing, gently squeeze out excess water. Avoid wringing or twisting the underwear.

  • Hang to Dry: Hang the underwear on a clothesline or drying rack in a well-ventilated area. Avoid hanging them in direct sunlight, as this can fade the colour and damage the fabric.

  • Turn Inside Out: Turn the underwear inside out to allow the gusset to dry thoroughly. This will also help prevent the growth of bacteria.

  • Drying Time: Air drying can take anywhere from a few hours to a day, depending on the humidity and temperature. Ensure the underwear is completely dry before storing it.

Machine Drying: Use with Caution

While air drying is preferred, machine drying is possible if you're in a hurry. However, it should be done with caution.

Use a Low Heat Setting: If you must machine dry your period underwear, use the lowest heat setting possible. High heat can damage the fabric, elastic, and absorbent layers.
Short Drying Time: Dry the underwear for a short period of time, checking frequently to ensure it's not getting too hot. Remove the underwear from the dryer as soon as it's dry to the touch.
Avoid Over-Drying: Over-drying can cause the fabric to shrink and the elastic to lose its elasticity. It can also damage the absorbent layers.

4. Storage Tips for Longevity

Proper storage is often overlooked, but it plays a significant role in extending the lifespan of your period underwear.

Ensure They Are Completely Dry: Before storing, make sure your period underwear is completely dry. Storing damp underwear can lead to mould and mildew growth, which can damage the fabric and cause unpleasant odours.
Store in a Dry, Well-Ventilated Place: Store your period underwear in a dry, well-ventilated place, such as a drawer or closet. Avoid storing them in damp or humid environments, such as a bathroom.
Fold or Roll: Fold or roll your period underwear to save space and keep them organised. Avoid storing them in a crumpled heap, as this can cause wrinkles and damage the fabric. You might find answers to frequently asked questions on our website.
Avoid Storing with Sharp Objects: Avoid storing your period underwear with sharp objects, such as jewellery or keys, as these can snag and damage the fabric.

5. Troubleshooting Common Issues

Even with the best care, you may encounter some common issues with your period underwear. Here are some tips for troubleshooting:

Stains: If you have stubborn stains, try soaking the underwear in cold water with a mild detergent or stain remover before washing. You can also try using a paste of baking soda and water to gently scrub the stain.
Odour: If your period underwear has a lingering odour, try soaking it in a solution of water and vinegar before washing. Vinegar is a natural deodoriser and can help eliminate unpleasant odours.
Reduced Absorbency: If you notice that your period underwear is not as absorbent as it used to be, it may be due to a buildup of detergent or fabric softener. Try stripping the underwear by washing it in hot water with no detergent. Then, wash it again with a small amount of detergent and rinse thoroughly.

  • Elasticity Issues: If the elastic in your period underwear is starting to lose its elasticity, it may be due to excessive heat or harsh chemicals. Avoid machine drying on high heat and using harsh detergents or bleach. Unfortunately, once the elastic is damaged, it's difficult to repair. You can explore our services to find new period underwear.

By following these step-by-step instructions, you can ensure that your period underwear remains a comfortable, reliable, and eco-friendly part of your period routine for years to come. Remember that proper care is essential for maximising its lifespan and maintaining its performance.

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