In this guide you will learn:

  • at the end of your period
  • with the Ruby Clean
How to clean your menstrual cup
What to do in case of
DO's & DON'Ts
What to put /not put on your cup

The Ultimate Cleaning Guide

for menstrual cups


How To Clean Your Menstrual Cup In Every Situation

How to clean a Ruby Cup between removal and insertion

Always wash your hands thoroughly with soap and water before handling your cup. Avoid fragranced soaps that may alter the pH of your vagina.


While you're using your Ruby ​​Cup, simply rinse it with water each time you empty it, before using it again. While on your period, there is no need to disinfect your cup between uses.


If you don't have access to a sink then use bottled water, or wipe your cup clean with a tissue.

How to sterilise a Ruby Cup at the end of your period

Your cup must be disinfected before storing each month. Rinse your cup, and boil in a pan or pot of water for 3 minutes. 

After boiling, wait until your cup is cool, dry thoroughly and store in the organic cotton bag that came with your Ruby Cup.

When boiling your Ruby Cup, make sure you don’t over boil it (no more than 10 minutes), otherwise, the silicone will lose some of its bounciness and not open up so easily anymore when inserted, hence leading to potential troubles with leaking.

How to sterilise a menstrual cup with the Ruby Clean

The best and easiest way to sterilise your cup is using a Ruby Clean. 

Put your Ruby Cup inside the Ruby Clean, fill with water until it’s about ¾ full and place it in the microwave. Make sure you do not close the lid completely as that will increase the pressure from the boiling water and can make it overflow.

Set the microwave time to approximately 3 minutes or enough time to bring the water to a boil and to leave it boiling for a few minutes. After boiling be careful as it can be hot. Grab it by the handles when you remove it from the microwave. Let the water cool down a bit before you empty it and take out your period Cup

How to clean a Ruby Cup in a public bathroom

Ruby Cup has a much larger capacity than pads and tampons, and can be worn for up to 8 hours – so you may not have to empty your cup when you are out and about, but in case you do, try these simple steps.

  • Always wash your hands thoroughly with soap and water before removing and emptying your Ruby Cup as usual;

  • If the sink is out of reach, simply wipe the Ruby Cup clean with dry or damp tissue, and reinsert. You can then wash and rinse your Ruby Cup with water the next time you have a sink at hand or in the comfort of your own bathroom;

  • You can take a small bottle of water with you to rinse the cup over the toilet

How to clean a Ruby Cup during travels/ out in nature

If you are traveling in a region where it’s not recommended to brush your teeth with the water available, then also make sure you don’t rinse your menstrual cup with that water. Instead, rinse your menstrual cup with bottled water.

If you’re in an area where the tap water is okay for cooking, making tea and brushing your teeth, but it’s still adviced not to drink it, in our experience, then it’s okay to rinse your cup with that tap water.

If you are hiking in the woods or camping out in the wild, menstrual cups can be the best menstrual health product to manage your period.

Your Ruby Cup holds three times more than a super tampon or a pad, meaning less toilet stops along the way. They are also reusable, so you won’t ever run out of stock and can save valuable room in your rucksack.

Keep some water with you to clean your hands before and after emptying your menstrual cup. Find a quiet spot to remove and empty. After emptying it, wipe with tissue, rinse with bottled water or simply reinsert straight-away


Bad Smell, Staining, Discolouring...Here's How To Fix Them!

My menstrual cup smells bad. What can I do?

Generally, your cup shouldn't have any kind of smell. 

Any smell usually stems from your discharge, which can change because of a change in hormones, infections or after taking specific medication like antibiotics. 

Here's how you get rid of the odour:

Some users have found that their cup becomes a little stained after a number of uses. 


Discoloration is related to the hormones and the unique natural chemical balance of each person's vaginal fluids: some people notice staining and others don’t.


It's normal to happen and doesn't affect the quality of your cup. 

Here's how you get rid of the stains:

My menstrual cup is discoloring / yellowing. Why? What can I do?

How can I remove the stains from my menstrual cup?

What's the white residue on my menstrual cup after sterilizing?

The white residue you might find on your menstrual cup, after you boiled it, is due to hard water in your region.

It is harmless and if you like you can just wash it off before you insert the cup.

That depends on a few things, like was it a public toilet or your private toilet at home, did you flush or do a poo beforehand?

My menstrual cup fell into the toilet. What should I do?

Will using a menstrual cup cause me a thrush? How should I clean it after a yeast infection?

Thrush is caused by Candida, a yeast fungus, and can occur when the natural balance of your vagina is disturbed.


Unlike tampons, the Ruby Cup does not absorb or interfere with the natural pH of your vagina.


We recommend that you avoid using perfumed soaps to clean your cup and when washing your delicate vaginal area as this can also disturb your pH balance.


What Substances Can You Use To Clean / Sterilise

Your Menstrual Cup?

As a general rule, we suggest you simply clean / sterilise your period cup with clean water.

Soap is not needed and can disturb your pH balance. However, if you want to use one, make sure it is pH-neutral.

It is not necessary to use anything else to disinfect your Ruby Cup than boiling it for 3-5 minutes in clean water.


As mentioned above, in case of uncomfortable smell or staining, the only substance we suggest is lemon juice.

We don’t recommend additional cleaning with chemicals like Milton tablets, alcohol wipes or hydrogen peroxide, as they can be harsh on the medical-grade silicone as well as the environment.

Moreover, so far we don't have reliable experience at Ruby Cup on what affect baking soda, vinegar and coffee grounds have on its material. Therefore we don't recommend them neither.



Clean water

Lemon juice

(just in case of smell or staining)

Don't Use



Hydrogen peroxide

Baking soda

Milton tablets

Alcohol wipes

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