Does Baking Soda Kill Mice?

Dealing with a mouse infestation can be challenging, and it’s essential to understand the most effective rodent control methods to keep your home mouse-free. One popular home remedy that has gained attention over the years is the use of baking soda to kill mice. This article will explore the science behind this method, assess its effectiveness, discuss safety concerns and ethical considerations, and provide alternative pest control methods.

Baking Soda

The Science Behind Baking Soda and Rodent Control

The chemical composition of baking soda

Baking soda, also known as sodium bicarbonate, is a common household item with various uses, from baking to cleaning. Its chemical properties make it a versatile ingredient:

  • Formula: NaHCO₃
  • Appearance: White crystalline powder
  • Solubility: Moderately soluble in water
  • Reaction with acids: Produces carbon dioxide gas and a salt

How baking soda is believed to affect mice

The idea behind using baking soda for rodent control is based on its reaction with stomach acid:

  1. The reaction with stomach acid: When ingested, baking soda reacts with hydrochloric acid in the stomach, producing carbon dioxide gas and sodium chloride (table salt).
  2. Production of carbon dioxide gas: The carbon dioxide gas produced in the reaction can cause bloating and discomfort. Mice, like many other rodents, are unable to burp or release the gas, leading to a build-up of pressure in their stomachs.
  3. Potential lethal consequences: The build-up of gas can cause internal distress and organ damage, potentially leading to the death of the mouse.

Assessing the Effectiveness of Baking Soda

Research studies and anecdotal evidence

To date, there is limited scientific research on the effectiveness of baking soda in killing mice. Most of the claims supporting this method come from anecdotal evidence provided by homeowners and pest control professionals.

Factors affecting the success of baking soda as a rodent control method

Several factors can impact the success of using baking soda to control mice:

  • Mice’s natural aversion to baking soda: Mice have a strong sense of smell and may be repelled by the scent of baking soda, making them less likely to consume it.
  • Amount and frequency of consumption: A mouse must consume enough baking soda in a short period for it to have a lethal effect. The dosage required to kill a mouse remains uncertain.
  • Alternative food sources available to mice: If other food sources are available, mice may choose to eat those instead of the baking soda mixture.

Safety Concerns and Ethical Considerations

Risks to other animals and humans

Using baking soda as a rodent control method poses potential risks to other animals and humans:

  • Ingestion by pets and children: Pets or young children may accidentally consume the baking soda mixture, which can be harmful.
  • Effects on non-target wildlife: Outdoor use of baking soda for rodent control can impact non-target animals that might consume it.

Ethical concerns regarding the use of baking soda as a rodent control method

  • The potential for a slow and painful death: If the baking soda does kill mice, the process may be slow and painful, raising ethical concerns.
  • Alternative, more humane methods of rodent control: There are more humane methods of controlling mice populations that should be considered before resorting to baking soda.

Alternative Pest Control Methods


There are various types of traps available to catch and control mice:

  • Snap traps: These traditional traps use a spring-loaded mechanism to kill the mouse instantly upon triggering.
  • Live traps: These traps capture mice without killing them, allowing for humane release.
  • Glue traps: These traps use a sticky adhesive to immobilize the mouse. While effective, they are often considered inhumane due to the potential for prolonged suffering.


Rodenticides are chemical compounds designed to kill rodents. They come in various forms and active ingredients. When using rodenticides, follow proper guidelines and precautions to ensure effectiveness and minimize risks to non-target animals and humans:

  • Different types of rodenticides: Common active ingredients include anticoagulants, bromethalin, cholecalciferol, and zinc phosphide.
  • Proper use and precautions: Always follow label instructions, use tamper-resistant bait stations, and keep rodenticides out of reach of children and pets.

Preventative measures

Prevention is the best strategy for rodent control. By making your home less attractive to mice and blocking their entry, you can reduce the likelihood of an infestation:

  • Sealing entry points: Mice can enter through gaps as small as a quarter-inch. Inspect your home for potential entry points and seal them with materials such as steel wool or caulk.
  • Proper food storage: Store food in airtight containers, and avoid leaving pet food out overnight.
  • Good sanitation practices: Keep your home clean and free of food debris. Regularly clean areas where food is prepared and consumed.


In summary, while baking soda may have some potential in killing mice, its effectiveness as a rodent control method remains uncertain. There are safety concerns and ethical considerations that should be taken into account before using baking soda for this purpose. Instead, consider using alternative pest control methods like traps and rodenticides, while implementing preventative measures to avoid future infestations. By exploring more effective and humane methods of rodent control, you can better protect your home and family from unwanted mice.


  • Nathan Collins

    Having spent years working in the landscaping industry, Nathan Collins has cultivated a wealth of knowledge about the natural world. He is committed to helping others appreciate the beauty in their backyards, whether it's through identifying rare rocks and minerals or crafting the perfect landscape.

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