Killing Rats With Salt: Is It Effective?

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If you’ve ever had a rat problem, you know how frustrating it can be. You may have tried everything to get rid of them, but they keep coming back. You may have even considered killing rats with salt. But is it effective?

Salt is a natural rodenticide and has been used for centuries to kill rats. If you’re considering using salt to kill rats, there are a few things you should know.

Are Rats Attracted to Salt?


Rats are attracted to a variety of different things, including salt. While it is effective in killing rats, it is important to remember that rats are also drawn to other things, such as grains, sugary snacks, leftovers, unripe fruits and nuts, and bird feeders.

Do Rats Eat Salt?

Offering food for holy rats at famous Karni Mata Temple in Deshnoke, Rajasthan state of India. It is also known as the Temple of Rats.

Rats consume minimal sodium chloride from the natural environment. They get most of their salt intake from the food they eat. This means that using salt as a method to kill rats is not very effective and can be potentially harmful to them.

Furthermore, rats, being omnivorous creatures, will eat anything they can find. However, if given a choice, rats prefer unsalted over heavily salted meals. This is because salt can be toxic in high doses, and it also makes food less appetizing.

Having said that, ingesting too much salt can be lethal for rats, as well as for humans. When rat poison is not an option or when the rats have become resistant to it, many people believe that sprinkling salt on their food will kill them.

However, this may not always work. But, in some instances, consuming salt in excess can make the rat’s condition worse and hasten its death.

Is Salt Bad For Rats?

While sodium chloride is effective in killing rats, it is also important to be aware that too much of it has the potential to be toxic and even deadly to the rats.

It is crucial to always use the correct amount of salt when trying to get rid of these pests and to never exceed the recommended dosage.

Rats need just a small amount of salt per day to sustain healthy growth and development. In fact, any salt content higher than 0.03% to 0.05% can be lethal to rats.

Ingesting anything more than a quarter teaspoon of salt per pound of body weight for rats can cause dangerous levels of sodium in the bloodstream, leading to dehydration and eventual death.

Killing Rats with Salt: Is It Effective?

Killing rats with salt is effective because the sodium chloride in salt will dehydrate the rat and eventually lead to its death. It is strange that this method works, but it does as long as you use a high concentration of salt.

Rats usually will not eat salt, but if they are starving, they may. The challenge will be getting them to eat the salt, as rats are very suspicious of new objects in their environment. However, if you can get them to eat the salt, it will kill them.

Is Rat Control through salt a sustainable option?

One cute rat looking out of a wooden box

Salt has been used as a rat control method for centuries. It is effective in controlling rats, but it is not a sustainable option because it can have negative environmental consequences. There are other, more sustainable methods of rat control that should be considered before using salt.

Furthermore, there are many rat extermination methods out there, and some are more sustainable than others. When you have been dealing with a rat infestation, it is best to use proven techniques that will surely get the job done quickly and effectively.

Rat control through salt is one such option, but it is important to be aware of the potential drawbacks before adopting this approach.

What are the various Benefits of Using Salt as Rat Poison?

One of the benefits of using salt as rat poison is that it is relatively safe for pets. It is not very dangerous when ingested and will not cause long-term health problems. Additionally, it is a natural substance, so it won’t harm the environment.

How Does Salt Kill Rats?

Salt is a kind of mineral that is essential for human life. It is also poisonous to rats. Rats consume salt to maintain their water balance, and this causes them to become ill. The ingestion of salt makes the rat’s cells swell and burst. This ultimately leads to death.

The effects of excessive salt consumption can include dehydration, kidney problems, and death. When it comes to killing rats, though, a little bit of salt can go a long way.

How Much Salt Must Rats Consume to Die?

In order to kill rats, you need to get them to consume a large amount of salt. This will make them thirsty, and they will eventually drink enough water to die. The lethal dose for rats is about 70-75 grams of salt.

It has been quite often said that if you want to kill rats with salt, then you should bait them with a strong smell. This will mask the salty taste, and they will eat it up.

Rats need to consume a lot of salt in order to die, and it is best to use bait that is invisible so as not to raise the rat’s suspicion. The amount of salt necessary for rats to die varies depending on the type of rat, but a general guideline is one pound per 100 pounds of body weight.

How Long Does Salt Take to Kill Rats?

If a rat consumes a large amount of salt, it may take some time for the effect to hit. The salt will cause the rat to become dehydrated, and as it drinks more water, the salt will continue to be ingested.

This will eventually lead to the rat’s death. It can take anywhere from 12 hours to 3 days for this process to occur, depending on how much salt the rat has consumed.

In most cases, the rat should be dead within 18 to 24 hours after contact with the salt. The high level of sodium that is present in the salt will dehydrate and kill the rat.

However, if the rat does not have access to water, then it may take up to 24 hours for the salt to kill the rat.

How to Get Rats to Eat Salt – Kill Rats With Salts

Because a rat would be unlikely to swallow a mound of salt that was resting on the floor of your kitchen, you will need to trick rodents into consuming salt.

This is the point in the process when things start to get interesting since the only way to persuade a rat to consume a large quantity of salt is to disguise it in a large quantity of bait. Salt and cheese, or salt and rat food, are also acceptable substitutes for this step.

Let us take a quick look at certain of these bait methods.

Lots of salt + cheese

There are various ways to eliminate rats, but one popular method is to use bait. In order to make the bait effective, you need to use a lot of salt and blue cheese. The salt will make the rat thirsty, and it will go for the cheese.

It is important to remember that rats need water to survive, so you should deprive them of both food and water so they cannot escape. You can also place cheese near the areas where you have seen rats in order to bait them.

In order to kill rats with salt, you need to have a lot of salt. You also need to close all the doors in the house and trap the rats in a specific room. The salt will cause them to dehydrate and die.

Rat chow + lots of salt

Rat chow is a complete, balanced diet that is manufactured to meet the nutritional needs of rats. It is available in different formulations, depending on the life stage of the rat.

It also contains all the nutrients a rat needs to grow, reproduce, lactate, and maintain its health. It has a high salt content, which makes it an effective rodenticide.

You’ll need 930 grams of rat food and 80 grams of salt to make this recipe. After measuring, combine the rat chow with the milk and season with salt.

This mixture must be well mixed to avoid salt from being concentrated in one region while being minimum in others. As previously stated, rats should be denied access to a water source.

Bonus Tips to Know About How To Kill Rats With Salts

Killing Rats with Salt: Is It Effective?

There are a few methods you can use to kill rats with salt. The most effective is to keep all water sources locked up or closed, so the rats have no access to water and will die of dehydration. You can also put salt in their food, but this is less effective.

Killing rats with salt can be an effective way to get rid of them, but there are some things you need to know in order to be successful. First, if you’re dealing with multiple rats, bait and traps may not be enough – add poison instead.

Second, make sure that the salt is spread out evenly so that the rats have no choice but to cross it. Finally, keep an eye on the situation and continue to treat the area with salt until all of the rats are gone.


Rats can be a problem because they damage property and food. They can also carry diseases, so it is important to get rid of them. Rat poison is an effective way to kill rats, but it is dangerous for pets. If you have multiple rats, try using open space and avoid the smell of the salt mixture.

About the author

A biotechnologist by profession and a passionate pest researcher. I have been one of those people who used to run away from cockroaches and rats due to their pesky features, but then we all get that turn in life when we have to face something.