Killing Rats With Baking Soda – How to Get Started

If you have a rat infestation but are not ready to spend on calling a pest exterminator just yet, you can attempt to deal with the situation inexpensively and safely. One of these safe but inexpensive ways is killing rats with baking soda. In this article, I will briefly guide you on how to kill rats with baking soda.

Aside from baking soda to eliminate rats from the house, there are also other methods like keeping rats away with cayenne pepper and the use of camphor.

Before we go into killing rats with baking soda, we need to understand why baking soda is a powerful method for rat extermination.

Warfarin is a significant component of recent commercial poisons due to its blood-thinning capabilities. Rats that consume it die from internal bleeding. Warfarin is a potent tool for killing rats.

So to kill rats in good quantity, you need about 1.6 milligrams of warfarin to kill a rat.

So which DIY homemade option can help us get this amount? Let’s see how effective it is when it comes to killing rats with baking soda.

Is Baking Soda Effective in Killing Rats?

killing rats with baking soda

All over the internet, baking soda is shilled as one of the most effective ways to kill rats in the house. The idea behind killing rats with baking soda is that rats cannot burb after consuming a meal laced with baking soda, which is the sodium bicarbonate, decomposing to produce carbon dioxide gas under acidic conditions.

So when a rat eats baking soda, it mixes with the acid in the rat’s stomach, which turns into a bunch of gas that the rat can’t expel – thereby killing the rat.

But considering the toxicity of sodium bicarbonate as the main ingredient of baking soda – which is around 7.3 grams, equaling 7,300 milligrams. This shows that baking soda is roughly 450% less effective than warfarin when killing rats.

But that baking soda is less effective than warfarin doesn’t mean that it isn’t effective at all.

Because if an adult average rat weighs about 275 grams, it will need to eat 2 grams of baking soda for it to cause a damaging effect to the rat.

sodium carbonate used for killing rats with baking soda
Sodium Carbonate Hazards Identification

In terms of teaspoons, the rat would eat more than a teaspoon of baking soda to get killed. So we will list out basic options and strategies to achieve that. What are the steps to get started?

Steps to Kill Rats with Baking Soda

You should bear in mind that once rats in the home can perceive baking soda, they will run away from it, which would lead to wastage of resources.

So if you are interested in killing rats with baking soda in the home, follow these steps.

Choose a location in the home.

You shouldn’t use the strategy of pouring baking soda all over the house. Rats are intelligent animals, and once they suspect a trap, they avoid it.

First, you should target a specific location in the house. You can decide to start from the kitchen and gradually move to other areas in the home. Since rats move around in the house, they might move from the room to the kitchen and get killed by baking soda.

So the aim is to attack specific locations first and move to other areas gradually as you see positive effects.

Create a Poisonous Recipe

Rats naturally won’t eat baking soda just like that, so you have to make it attractive for them to eat.

Certain recipes allow you to add baking soda, making it inviting for rats to eat to their fill.

Here are some recipe you can easily prepare at home with baking soda;

Rat Poison Recipe 1

  • 1/4 Cup Baking Soda
  • Half cup of peanut butter

Mix the baking soda and peanut butter thoroughly and mold into small balls like an egg or orange.

Remember to wear gloves to keep your scent off the bait.

Rat Poison Recipe 2

  • Half cup of sugar
  • Half cup of baking soda

The baking soda and sugar have different particle sizes, so mix them well and pulse them in a spice grinder for about 10 mins to get a uniform distribution.

Place the Bait Strategically

You should concentrate your bait around a particular location where you’ve seen signs of rat dropping or infestation. You should place it at night and switch off the light so that the scent would be the only attracting factor for the rats.

If rats inside your home consume enough of these treats, they are sure to die in about a day.

Clean up

Typically, you should expect results within a day or two, so always check out hidden locations for signs of dead rats or utilize smell for investigation.


Baking soda is a harmless way to kill rats without harming pets in the house. But you should also look to protect your pets anyway from eating rat baits to avoid sad stories.

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