Homemade Rat Poison: #3 Is A Super Deadly Concoction

rat breed

Rats are pests that can easily thrive inside your home or your property. These animals are very cunning and they have the ability to survive by using their agility as well as their heightened sense of taste, smell and touch. They use these senses closely so that they can avoid danger and continue to survive.

Rats are a very serious problem simply because they can easily spread diseases and cause a lot of mess especially in areas where you store your food. Rats can also multiply rapidly and cause infestations in your home. These pests are also known to chew appliances and furniture.

These are just some of the reasons why it is very important for homeowners to find an effective way to get rid of them for good. While some people will opt to use commercial rat poisons, there are those who want to kill rats their own way. Here’s how you can make a homemade rat poison.

Homemade Rat Poison Effectiveness

Those who try homemade rat poison are often surprised at its effectiveness. Many remark they have achieved success with homemade products after commercial rat poisons have failed. That’s because rodents can build up an immunity to some poisons, essentially rendering them ineffective. When that happens, you might find it necessary to use higher doses of a particular poison just to get the job done. You could even need to stop using certain products completely. Homemade rat poison can also help you avoid dangerous traps. You no longer have to worry about snapping your finger in a trap while baiting it, or leaving one where children or household pets might find it. And you can also avoid the somewhat unreliable glue traps, which only work if a critter passes directly over top of them. As with any do-it-yourself method of pest control, your results may vary. You may find one type of homemade rat poison works better than others. Some might even be more effective in certain areas-for example, the outdoors. Use trial and error to determine which homemade rat poison is ideal for your situation. Continue tweaking your methods, and you can enjoy a pest free home without the use for expensive, dangerous poisons. 

Our Favorite Rat Poisons

Homemade vs Store Bought Rat Poisons

You may be wondering what the difference is between homemade rat poison and rodent control products purchased at the store. There are actually quite a few differences, the biggest one being that most homemade products are more environmentally friendly. As such, you do not have to worry about harmful residue seeping into your groundwater supply when disposing of containers. Most homemade rat poisons use ingredients you already have lying around the house. This means you do not have to make an extra trip to the store in order to start killing rodents. Just mix up a batch of your favorite recipe and you are ready to go. If you must purchase ingredients, you’ll find them very affordable. In most cases, the ingredients you need to make your own batch of rat poison will cost less money than the commercial products you would purchase off the shelf. Homemade rat poisons are easy to make any time they are needed. This means you do not need to keep rodent poison on hand at all times “just in case.” You can store your homemade products in old coffee cans, butter dishes, etc. and they will still be good weeks or even months later. Commercial pest control products on the other hand have a very short shelf life, which means you may have to throw away poison after a certain period. 

Preventing Rats from Entering your Home

It’s far easier to prevent rats from entering your home in the first place than it is to worry about eradicating them. Here are some tips for keeping your household rodent free: 

•Keep your home as clean as possible, both inside and out. Rats and other rodents like an untidy space because it provides them with plenty of locations in which to hide and build nests.

•Trim bushes and shrubs around the perimeter of your home. Rodents and other small animals love to make low-hanging bushes their residences. •Store all food items in sealed containers. Do not leave any type of edibles lying on your kitchen counter.

 •Use dunnage such as old pallets to store items in areas you do not frequent often. Examples are your basement, garage, or attic.

•Place pet food in plastic totes or storage containers and store them at least a foot or so off of the ground.

•Seal up any holes in your outer walls to make it harder for rodents to enter. Cover any holes in your interior drywall so rats cannot get inside.

Homemade Rat Poisons

#1 Using Plaster Of Paris


Use a quarter pound of Plaster of Paris and Cornmeal. Mix these two ingredients together and add milk to create a dough. Make little dough balls and let it roll into tight crevices or areas where the rats frequently pass through. Avoid making the dough sticky and focus on making it a food source for rats.

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The plaster of Paris contains gypsum that will harden when it gets into contact with a liquid. If the rats eat it, it will harden inside their stomachs and cause them to die. After 6 days, check the dough balls if they have been eaten. If they are hard and have not been eaten, you can make another batch.

#2 Using Baking Soda

Baking soda can fill the rat’s stomach with carbon dioxide. Since the rat cannot pass gas, the carbon dioxide will build up in its stomach until it ruptures and kills the rat. You can entice the rat into consuming baking soda by mixing equal parts of it with flour and sugar.

You need to mix the three ingredients properly so that the rat will not be able to detect the baking soda. Place the dry mixture into a shallow container and put the container near the rat’s nest or hiding place. Check the container after a few days so you will know if the rats have been eating the mixture.

#3 Using Peanut Butter

peanut butter

Rats are actually more attracted to peanut butter than cheese. As a matter of fact, there are many commercial rodenticides that use peanut butter to help entice bait-averse rats. You can use this to your advantage by making rat poisons that have a rich peanut butter flavor.

Mix together equal amounts of baking soda and peanut butter. You will use the peanut butter as the bait, and the baking soda as the rodenticide. You can also use plaster of Paris, or better yet, why not try to add half a cup of both with 1 cup of sweet and creamy peanut butter to make it drop dead delicious?

peanut butter balls

You can also buy commercial baits for rats, ground them up and then add a cup of peanut butter to make them more effective. You can even mix together different kinds of bait and peanut butter in order to make it deadlier. Just ground up the rodenticides properly to make a smooth mixture or a firm ball.

To make the rat poison more effective, avoid handling the ingredients with your own hands. Use gloves so you will be able to hide your scent in the food that you prepare. This will also help you avoid poisoning yourself especially when handling commercial poisons.

#4 Using Boric Acid

boric acid

Although it cannot be used to kill rats as fast, you can use boric acid to poison them slowly. You can make this poison by adding equal parts of boric acid and sugar to make a dry mixture. You can add water if you prefer to make a dough and you can also coat it with peanut butter or chocolate.

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Boric acid can be used to kill the rats over time. It can be used to kill bait-averse rats since it does not have an immediate effect on them. When using peanut butter or chocolate, make sure that it will not be eaten by ants and other insects first. This concoction can also be used to kill cockroaches.

#5 Using Instant Potatoes

instant potato

Rats are also attracted to instant potatoes especially if they are looking for a more substantial food source. Instant potatoes contain nutrients that most rats will want to have especially if they are pregnant. You can use instant potatoes as your bait, allowing you to hide different poisons.

The most common way to use instant potatoes is by mixing it with baking soda or with plaster of Paris. Add 1 cup of both ingredients and sprinkle it with a little bit of cinnamon to make the scent more irresistible to rats. Add 1 cup of water to the mixture and put it in a container for rats to feed on.

#6 Using Chicken Broth

chicken broth

Chicken broth often has a strong and mouthwatering aroma. You can actually use its flavor and scent to create homemade rat poisons without letting the rat detect the presence of other ingredients until it’s too late. Use the chicken broth to replace water or milk can make your poison more attractive to rats.

Chicken broth and boric acid is a popular rat poison combination that you can use at home. Just combine equal amounts of both ingredients so you can make boric acid broth balls. You can also add a bit of flour into the mixture so that it will be more manageable.


poisoned rat

Rats are pests that should never be found in your home. Aside from carrying deadly diseases, these vermin can actually bite you and they can also destroy appliances and furniture inside your house. Dealing with them must be done as soon as possible before they can start nesting in your own home.

There are many ways for you to make your own homemade rat poison. By using food items that rats find attractive, you can actually sneak in substances that can slowly but surely kill them. You just have to keep in mind that rats act as scavengers when dealing with unfamiliar food items.

This means that they tend to take small bites just to make sure that the food will not harm them. Rats are known to be bait-averse, if it ingests a substance that it thinks is toxic, it will never go near that substance again. This is why you need to be very crafty when it comes to making your rat poison.

Some rats are also known to be resistant to anticoagulant poisons. This is why in some cases, using homemade rat poisons are more effective when it comes to dealing with rat infestations. Homemade rat poisons cannot kill rats right away. You will need to wait for a few days before you can see any results.

Have you ever tried making homemade rat poisons before? Share the results and your recipes with us in the comment section.

Last update on 2022-08-14 at 12:57 / Affiliate links / Images from Amazon Product Advertising API

22 thoughts on “Homemade Rat Poison: #3 Is A Super Deadly Concoction”

  1. The idea of mixing peanut butter and balking soda is absolutely brilliant Ms. Taylor. In the food storage area of our school here in Africa, rats are a major threat, so this idea of using peanut butter as an attractant that will deliver the baking soda payload, is just what the doctor ordered. Thank you very much for this enormously helpful recipe.

  2. Saw a little critter trying to climb down a tree into my back yard tonight twice as I went out with my spotlight to see what the bustle was in my yard. My black racer must be on haiaitus for the winter so I’m left to my own devices at the moment. (They must know). Trying the baking soda to peanut butter ratio. It’s what I had in hand immediately. Thankfully my dog doesn’t care for peanut butter. Thanks for the tip. Hope it works!

  3. The rat poison with the plaster and brown sugar worked dead rats.under house took a week But they are smart this time Im putting chocolate in them.Traps they just pushed aside and store bought poison stoped working. This stuff really worked. Thank you

  4. Made up Flour, Sugar, Baking soda added a little water 1/4 cup P-nut Butter and 3 Tblspns Chocolate powder. Made into 1″-1 1/2″ balls, cut each ball into 6 pieces and put in foil pan/old dog dish, etc. and heated P-Butter (microwave 15 sec) and brushed some on each of the pieces. Put remaining balls on cookie tray and freeze, then baggie later. Later thaw in room Temp, coat and set pans out. Works because I found dead rat by the dish this AM.

  5. first of all thanks for sharing.
    I have a question for you what is instant potatoes, is it the stuff you used to make mashed potatoes I’m living in Denmark that’s why I’m asking you.
    I have no experience with homemade rat poison but I’m going to give it a try because the stuf that professionals use is very harmful to my three cats if they should eat a poisoned rat.

  6. I just mixed creamy peanut butter mixed with baking soda and Rat X poison bait pellets and made them into balls wrapped in seran wrap. I heard one of the rats take one of the bait balls last night. This morning I found parts of a cannabilized rat. Thank you so much for writing about this! Making my own poison bait works when other methods fail!

  7. Adding water to a concoction containing plaster of paris will cause it to harden prematurely. The rat needs to eat it so it hardens in the stomach due to water in the stomach acids to be effective. Also do not add anything acidic to the baking soda concoction. It will similarly prematurely release the CO2. Although peanut butter seems moist, it is oily and can probably be mixed with plaster or soda without a problem.

  8. I mix antifreeze with pancake syrup they LOVE pancake syrup … or sprinkle a tiny bit of epson salt in water after leaving something that makes them thirsty … the epson salt gives them the runs dehidrates them ….

  9. I painted a styrophome wig head made it look real … put it on a tripod ..or pole ..they see it and run away …helps if you put one of your own dirty shirts on it to make it smell human …


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