Get rid of rats and keep them from coming back

How To Make Rat Poison: Rat Poison Recipe

Making rat poison does not have to be rocket science. You can make a few variants at home, and you will only need access to household ingredients. Some would also be familiar with your next-door nemesis, the rats. So, giving something which they would not suspect would kill them quickly. How long does the rat poison take to work depends on the main ingredient that you’ll use. Also making a rat poison is a fun thing to do. Here is how to make rat poison!

Our course for today would include concoctions made of the following:

  1. Using Baking Soda
  2. Using Boric Acid
  3. Using Plaster of Paris
  4. Using mashed potatoes
  5. Using Ammonia 

Let’s start!

Rat died by eating poison pellets

Rat Poison With Baking Soda

If this is your first time on this site, you probably want to check out our discussion on killing rats with baking soda and other condiments. 

But for now, here is your easy access to making your concoction with a baking agent. 


1- Prepare 1 cup measure of the following:

Baking soda




Chocolate powder

2- Mix and blend all the ingredients well.

3- Put them in a shallow container or a jar with lids.

4- Let them attest to the rats until they eat them.

Baking soda is poisonous to rats as it creates acid compounds that poison and lowers the rat’s immunity.

Rat Poison With Boric Acid

You’ve got two variants of boric acid poison for rats. The first is peanut butter boric acid.

All you need to do is to mix a bowl of boric acid and peanut butter. The peanut spread has an alluring smell, especially to rats. You can put a small dish with the mix and let the rat devour it.

Next is a boric acid soup.


1- Prepare boric acid in a bowl and chicken broth to fill it. 

2- Mix the two

3- Stir until you reach a thin slurry consistency. 

4- Put in an area where the rats would see and eat it.

The boric acid would weaken the rat by paralyzing its senses and by irritating the rat’s stomach. This prevents the rats from eating more. 

Rat Poison With Plaster of Paris

You can do many versions of this poison. Your main ingredient, of course, is the plaster of Paris. This will be suitable with the following base ingredients:

  • Sugar
  • Juice powder
  • Chicken broth
  • Chocolate


Dilute a spoon of plaster of Paris into two spoons of water. Then add that to a portion of food, and the mix will soon solidify. 

As the rat or mouse bites into the solidified food, it first melts in the mouth but soon turns onto a chunk of solid once it rests inside the mouse’s digestive tract. 

Person mixing plaster of paris in a bucket

Rat Poison With Mashed Potatoes

A natural rat poison called “Killer Mashed Potato” is easy to use. It comes in potato flakes, and it is mixed with water. Once the rat eats it, the potato flakes will expand inside the rat’s stomach and soon leave the rat bloated and paralyzed.

Rat Poison With Ammonia

Ammonia is a cleaning agent, but you can also use it as a rat poison solution with a few modifications. 


1- Prepare the following in a 1-1 ratio:

  • Ammonia
  • Water 
  • Detergent

2- Mix all the items. Use a larger ratio of 5 to 5 for larger rat infestations. 

3- Soak rags into the solution. Let the rags absorb the ammonia. 

The ammonia hurts the smelling buds of the rats and can also irritate their eyes. It is poisonous enough to paralyze and cause irritation to the mice.

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