Using Peppermint Oil as a Natural Mouse Repellent

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Does peppermint oil really work?  Can it be used as an effective natural mouse repellent?   The answer is YES.  It really does work, but it has to be used correctly.

Here some ways to make sure you are doing it right.

5 Tips to use Peppermint Oil to Repel Mice

1. Buy the Right Stuff.

Make sure to use pure 100% peppermint oil or a product that is specifically formulated to repel mice.  Here are a few options for you available from Amazon.  These will all work to repel mice.

You can also purchase peppermint oil from your local health food stores. Just be sure to let the sales staff know you want to use it to repel mice.  They can let you know if the peppermint oil they carry is suitable for that purpose.

2. Make Sure You Use Enough Peppermint Oil.

The scent needs to be strong enough to act as a deterrent. More is better in this case. I personally use at least 5 drops of oil on a cotton ball. Don’t skimp on the mint!

3. Select the Right Location.

These are in the order of importance.

  • You want to place the peppermint soaked cotton balls in the areas the mice are likely to enter your home. This is a very important step that cannot be overlooked.  You want the mice to smell the peppermint oil BEFORE entering your house, so they do not come in.  This is the trick most people miss.  If the mice are already in your home, they will not leave because you have peppermint in a few corners, they will just find a spot without the scent.

  • Peppermint oil is also an effective way to mask the pheromone trail mice leave within your house. These trails are used to tell the other mice where to go.  You can locate these areas by the tell tale droppings or grease marks they leave.  Place a few cotton balls in these areas to prevent the mice from exploring further in your home.

  • Finally you can also leave the cotton balls in areas where you don’t want them to explore. While you are catching mice with other methods, you can use peppermint oil to deter the mice from hiding in new areas such as your child’s bedroom or coat closet.

4. Refresh the Cotton Balls about Once a Month.

cotton balls soaked in mint oil

For best results, replace the minty cotton balls between 2-4 weeks.

The fragrance will wear off over time and stop working as is gets weaker.  Make sure to keep the peppermint oil fresh to maximize its effectiveness.

At a minimum, you should replace the peppermint soaked cotton balls once a month. If you are dealing with a recurring problem, change them out every 2 weeks.

5. Know its Limits.

Peppermint oil can be an effective mouse deterrent, but it is not an effective way to remove mice that are already living in your home. If the scent is strong enough, it will prevent them from making a new home in the area where you place the cotton balls. But if you place the mint where they are already living, this will probably not make them go running for the hills.

Another way to use the oil is to mix it with water & spray the solution on doorways or other entrance areas to your house. This is more practical in some cases such as if you are using it along hallways. You can spray the entire area much more easily then placing multiple cotton balls along their trail. Just make sure to make the oil spray strong enough.

Wondering Where to Buy Peppermint Oil?

You can buy peppermint oil at your local grocery or health food store. There are also many online stores which will ship it to you. The important thing to remember is make sure you buy 100% pure peppermint oil. Don’t buy a blend unless it is specifically created to be used as a mouse repellent. Also peppermint extract will not work, it needs to be the oil of the peppermint to be most effective in repelling mice.

Here is a link to buy peppermint oil, to make sure you get the right stuff!  There are several reliable brands available online.  NOW foods & Vitacost both get excellent reviews.

Mouse Away Concentrate – A Ready Made Solution using Peppermint Oil.

Mouse Away Concentrate is an essential oil made by Dreaming Earth Botanicals. This is another all natural mouse repellent made from a combination of peppermint & spearmint oils. You can use it the same way as peppermint oil by placing a small amount on cotton balls & place them strategically around your house.

Dreaming Earth also makes a ready to use pouch filled with their patented blend of essential oils. These are just as effective as the Mouse Away Concentrate product, but they come pre-packaged, so you can simply place the little cloth bags where you want to deter the mouse activity. The pouches last a few months.  You can buy them at this link:  Mouse Away Solids – 4 Pack (The Original).

The really nice thing about this product is you can reuse them too, by pouring a little of the Mouse Away Concentrate on the little cloth bags. This way you don’t need to mess with the cotton balls or buy replacements.

How to Make a Peppermint Oil Spray for Mice

While the peppermint soaked cotton balls work best to tuck in small areas, some folks prefer using a spray bottle.  The spray is much more convenient for larger spaces such as along baseboards or in an area that is hard to reach. To make your own peppermint oil spray, use the following recipe.

Materials Needed

  • 1 small spray bottle 2 ounces (Look in the travel section of a drugstore.)
  • 1 ounce pure peppermint oil
  • 1 ounce water

Directions

  1. Pour the oil & water in the spray bottle.
  2. Shake well to blend the mix. The oil and water will separate over time. A small drop of detergent can help to keep the mixture evenly blended.

Reapply the spray as needed to keep the scent at its strongest. For best results we recommended keeping the oil & water in the same proportions at least initially until you have not seen any mice for several weeks. You can experiment with a lower concentration when you are using it as a preventative measure only. You can reduce the concentration to in this case to 1 part peppermint & 2 parts water.

Variation:  Clove oil can also be added to the mix if the peppermint oil alone is not working. Use in proportions of 1:2 – clove to peppermint oil.  In our recipe above, this would be ½ ounce clove oil to 1 ounce each peppermint oil & water.

Growing Peppermint to Repel Mice

Another natural way to get rid of mice is to grow peppermint around your home. In the warmer months, mice may live outside, then as it get colder, they slowly migrate indoors looking for some shelter against the weather.

Peppermint Herb Plant

Grow mint around the base of your house to prevent mice from nesting in the area.

The goal is to make the surrounding area as unattractive as possible for them. If you can keep the mice from building nests close to your house, they are much less likely to come inside.

Mint is a rapidly spreading perennial herb. It prefers a semi-shady location with more than average moisture. If mint is grown in the right environment, it will spread into a dense mat. But watch out, it spreads quickly & may encroach into other garden areas or your lawn. On the positive side, if smells wonderful when you are cutting the grass.

Mice will avoid nesting directly in an area with very pungent & fragrant herbs such as mint. And as a bonus, mint also repels flies, fleas & ants. So you will be keeping other types of pests away from your home as well.

Make your own Peppermint Essential Oil for Mice

peppermint essential oil to get rid of mice

Make your own peppermint essential oil

Can’t find any peppermint essential oil in your local shops and don’t like to shop online? You can also make our own peppermint essential oils with either a plant from your garden or the supermarket.

Ingredients

  • Fresh Peppermint
  • Light Base oil (Grape Seed or Almond Oil works well)
  • Mortar & Pestle
  • Jar with lid
  • Cheese Cloth or other strainer
  • Small dark bottle to store the oil (or spray bottle if you are making the peppermint spray)

Instructions

  1. Collect peppermint. The best time to harvest herbs to capture their essential oils is in the morning when the oil is at its strongest.
  2. Rinse with cold water & pat dry.
  3. Place the mint in the mortar & pestle and gently bruise the leaves to release the oils.
  4. Heat the oil slightly in a saucepan.
  5. Add the oil to fully cover the leaves
  6. Use a spoon to mix well and ensure the oil is equally spread throughout the leaves.
  7. Seal the jar & allow to sit for 1 month.
  8. Slowly pour the oil through the cheesecloth into the storage bottle.  The cheesecloth is used to strain out the leaves. Squeeze any excess oil into the bottle. A coffee filter can also work for straining if needed.

Note:  If you do not want to wait a full month to use the oil, you can use several batches of mint to increase the flavor faster. In this case, allow the first batch to sit for 1-2 days. Remove the old mint leaves & replace with freshly bruised leaves. Repeat this process three or more times and your mint infused oil can be ready in under a week.

Why do People Say using Peppermint Oil is a Myth?

The debate on whether peppermint oil really works to repel mice has been going on for years. The reason most people say it doesn’t work typically comes down to one of the following reasons:

  1. Not using Pure Peppermint Essential Oils or diluting it to a weaker strength.
  2. Not using enough oil or not refreshing the oil every few weeks to keep the scent strong.
  3. Expecting it to work like magic – a little dab & poof all the mice are gone.

Tossing a few peppermint leaves where mice like to nest won’t work. They may not love it, but it’s not a strong enough deterrent to make them leave an otherwise comfy home. The plants are also not nearly as strong as the oil. But, if given a choice of 2 homes – the mice will make their nest in an area that is not overrun with mint.

The same holds true with using the oil. If your house is already overrun with mice, you will have to trap them to get rid of the infestation. Once the mice are gone however & the area has been thoroughly sanitized, this is the time to use the cotton balls or peppermint oil spray. The oil will help to overpower the pheromone trail mice like to leave behind and it will DETER them from returning.

Can Mint be used to Keep Mice out of my RV?

Yes, this is a very popular use of peppermint oil.  A parked car that doesn’t get used very often is a common nesting place for mice.  Mice also love to wait out the winter months in the warmth of an RV. Even better when there may be a few crumbs on the floor.

Peppermint oil spray can be used around the wheel wells and other entry points to keep mice from coming inside.  It can be sprayed inside the vehicle as well, so if they do get inside, they won’t want to stay.  The pre-made peppermint oil rodent repellents like the Mouse Away Solids or Fresh Cab Rodent Repellant, Mouse Pouches are both popular choices to keep mice out RVs and parked cars.

Summary: Does Peppermint Oil Keep Mice away?

Does peppermint oil repel mice

Does peppermint oil really work? Yes – within reason.

Mint is a preventative measure, not a cure. The bottom line with using mint as a natural mouse repellent is it should be used for prevention.  It is very effective in preventing mice from coming in to a new area, but less useful in getting them out once they have moved their family in.

So if you already have mice in your home, follow the advice given to catch mice with traps or hire an exterminator. Use the mint to complement these efforts during the removal process and to keep them from coming back.

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