7 Foods That Kill Mice: Natural Alternatives

7 Foods That Kill Mice: Natural Alternatives

16 Foods That Kill Mice Instantly


Mice are persistent little creatures that can cause havoc in our homes. Not only do they spread diseases, but they can also damage our property by chewing on wires, furniture, and food supplies. While there are many traps and repellents available on the market, sometimes it’s useful to know about natural alternatives that can help eliminate mice. In this article, we will explore 16 foods that have been proven to kill mice instantly.

Safety Precautions

Before we delve into the foods that can effectively kill mice, it’s important to consider some safety precautions:

– Keep these foods out of reach of children and pets to avoid accidental ingestion.
– If you have children or pets in the house, opt for alternative methods to eliminate mice, such as traps or natural repellents.
– Always wear gloves when handling harmful substances.
– Be cautious when using toxic substances near areas where food is prepared or consumed.

Now, without further ado, let’s take a look at the foods that are known to kill mice instantly:


Yes, you read that right. Chocolate, especially dark chocolate, can be lethal to mice. It contains theobromine, a compound that is toxic to rodents. To use chocolate as bait, place a small amount on a mouse trap and wait for the mice to take the bait.

2. Onions

Onions have a strong odor that mice find repulsive. Cut an onion into small pieces and place them near areas where you’ve seen mouse activity. The smell will deter mice from entering your home.

3. Raisins

Raisins can be deadly to mice. Place a few raisins on a mouse trap to attract these little pests. Once they consume the raisins, it will be toxic to them.

4. Peppermint Oil

Peppermint oil is known for its ability to repel mice. Soak cotton balls in peppermint oil and place them near entry points and areas where you’ve noticed mouse activity. The strong smell will keep mice at bay.

5. Garlic

Garlic has a pungent smell that mice find unbearable. Crush a few garlic cloves and spread them around your home to deter mice. You can also soak cotton balls in garlic oil and place them in strategic locations.

6. Instant Potatoes

Instant potatoes are another effective mouse killer. Mice will eat the flakes, which will absorb water from their digestive systems. As a result, the flakes will expand and cause fatal bloating.

7. Apple Seeds

Apple seeds contain a naturally occurring compound called amygdalin, which releases cyanide when it comes into contact with stomach acids. Mice are attracted to apples, so placing apple seeds on a trap will be a deadly bait.

8. Alcohol

Alcohol can be intoxicating for mice in more ways than one. Research has shown that mice are attracted to the smell of alcohol, and consuming it can lead to fatal consequences. If you have an old bottle of liquor that you’re not keen on drinking, use it as bait.

9. Carbonated Drinks

Carbonated drinks are another surprising food item that can kill mice. Mice are unable to burp, so consuming carbonated drinks will cause a buildup of gas in their stomachs, resulting in their demise.

10. Peanut Butter with Borax

Peanut butter is a popular bait for mouse traps, but when mixed with borax, it becomes lethal. Borax is a naturally occurring mineral that damages mice’s digestive and nervous systems, ultimately leading to their death.

11. Instant Coffee

Instant coffee serves as an excellent poison for mice. Mix instant coffee granules with water and place it in small dishes near mouse holes or areas of high activity. The caffeine in the coffee is toxic to mice and will lead to their demise.

12. Plums

Surprisingly, plums are also toxic to mice. Place a few ripe plums near mouse-infested areas to attract them. Once they consume the fruit, they will be poisoned.

13. Bacon Grease

Bacon grease is another food that mice find irresistible. Place a small amount of bacon grease on a trap to lure them in. The grease will coat their digestive system, causing fatal blockages.

14. Licorice

Licorice may be a sweet treat for humans, but it’s a deadly snack for mice. The compound glycyrrhizin found in licorice can be toxic to mice. Use licorice candy as bait on mouse traps.

15. Cheese

We couldn’t write an article about foods that kill mice without mentioning cheese. While it may not be lethal on its own, cheese can be combined with other toxic substances, such as baking soda or borax, to create a deadly bait.

16. Poisonous Plants

Lastly, certain plants can be toxic to mice. Daffodils, foxgloves, and lilies are just a few examples. While we don’t advise growing these plants indoors due to their toxicity, planting them in your garden can deter mice from venturing near your property.


Using natural foods to eliminate mice can be an effective and humane way to deal with the problem. However, it’s important to prioritize safety and take precautions when handling toxic substances. Remember to keep these foods out of reach of children and pets and avoid using them in areas where food is prepared or consumed.

My 2 Cents

Mice infestations can be a nightmare, but resorting to toxic substances should be a last resort. Before considering using foods that are toxic to mice, try using more humane methods such as traps or natural repellents. If you do decide to use these foods as bait, be extremely cautious and follow the safety precautions mentioned earlier. It’s also crucial to address the root cause of the infestation by sealing entry points and maintaining proper cleanliness.