Can You Kill Mice With Salt?

by Derrick | Last Updated: March 26, 2022

Killing a mouse with salt? Statistics show that 14 million American families have a mice infestation where they live, so there is no harm in trying to kill mice with salt. But is it effective?

We could say yes, but under certain conditions. Salt will kill rats if they eat at least 80 grams and have no access to water. If you can gather these conditions, it is possible to say that salt can kill rats; otherwise, there may be other options.

Experts in this field always question the actual effectiveness of salt in killing rats. Many rumors claim that it is only a myth. The experts recommend getting products specially formulated for this type of extermination. Some sectors support the use of this method. However, reality tells us that there is still no conclusive evidence that ratifies or denies the effectiveness of salt as a rat exterminator. Nevertheless, in this article, we will approach this subject in greater depth to know much more about salt to eliminate these unpleasant rodents.

What Is The Effect Of Salt On Mice?

Salt will not significantly change the health of mice if consumed in minor or moderate amounts. The reality is that salt is, on the contrary, an essential part of the diet of mice since no mammal could survive without salt in its diet.

You can find evidence of this in house mice. These rodents nibble and eat salty snacks such as pet food, crumbs of all kinds, and spicy leftovers. We also have the wild mice that continually nibble on nuts, seeds, and vegetables with salt.

However, it is essential to be clear that, as in many circumstances, consuming salt in high quantities is not healthy for anyone and not even for mice. Recent studies indicate that excess salt is harmful to the brains of mice. Specifically, many National Institutes of Health suggest that mice with diets high in salt show changes in their immune system and gut. This situation can lead to brain damage due to decreased blood flow to the brain.

Additionally, mice on high-salt diets show accumulation of a protein in the brain linked to Alzheimer’s disease and other dementias. With this picture a little clearer, we could conclude that salt in moderation is acceptable. Still, too much salt is not suitable for mice, which brings us to our initial issue: can too much salt really kill mice?

Can You Kill Mice With Salt?

Theoretically, yes, too much salt can kill mice. The truth is that too much of almost anything is always toxic to any living thing.

Perhaps the more appropriate question is, do mice eat enough salt to be poisoned and die from that consumption? This scenario is where there is no verifiable evidence since mice tend to have many food sources available to them, either in the home or in the environment where they live. If you place a bowl full of salt, it is unlikely that a mouse will sit down to eat it entirely unless there aren’t other food options.

How Much Salt Do Mice Have To Consume To Die?

Mice will die with more than 70-75 grams of salt circulating throughout their body. However, it is best to administer an amount above these levels to ensure that the poisoning will be fatal. Because of this, experts recommend feeding one kilo of your bait with 80 grams of salt, which is above the threshold of death. Applying this recipe will take between 18 and 24 hours for the mice to die after consumption and total water deprivation.

What Are The Advantages Of Using Salt As A Mice Poison?

Many people choose to use salt to kill mice because it is a product that offers multiple benefits in achieving this goal. Some of them are:

  • Salt is perhaps one of the most economical ways that we can find to diminish the population of mice in case we have an infestation of rodents in our house.
  • Salt is a material that is always available and very easy to find.
  • Salt is much safer than commercial mouse poisons that could quickly kill our pets. Although salt can also affect our pets if accidentally eaten, it is less lethal than commercial poisons and rarely kills them.

Physiological Consequences Of Excess Salt In Mice

The fact that the tiny mouse body causes salt ions to accumulate more rapidly, can produce harmful effects sooner than the same amount of salt in humans.

Acute salt poisoning in mice will produce gastroenteritis and inflammation. Other consequences in mice will be their neurological signs, where they will experience general weakness, muscular paralysis, blindness, and deafness.

Suppose the mouse does not get to drink plenty of water soon. In that case, the resulting burning effect will also leave permanent damage to the stomach and intestinal linings, usually resulting in the rodent’s death.

How Can I Get The Mice To Eat Salt?

This point is precisely the most complex to achieve. Initially, it may be challenging to get the mice to eat the amount of salt necessary to die, so the only thing left to do is trick them. The strategy of deception depends entirely on the bait. There are two main bait options: cheese and rat chow.

Large Amounts Of Salt And Cheese

When you are addicted to cartoons like Tom and Jerry, you may have the preconceived idea that cheese is the only food that attracts mice. However, this image of mice and cheese is an exaggerated stereotype. Cheese is not exactly the favorite food of mice as we see them on television, but they will still eat it because they are omnivores.

  • The fundamental reason cheese is the ideal bait is its strong odor in all directions. Like any other animal in hunting mode, mice use their sense of smell to locate food.
  • The first action to do is to get a slice of pungent-smelling cheese seasoned with 80 grams of salt, enough to kill these pesky rodents.
  • Take a piece of the cheese and test it to make sure it is strong enough for the mice. Remember that your goal is to get the mice to eat as much as possible. In addition, you must deprive them of water and other food scraps that may be in the house; their only food source should be cheese seasoned with salt.
  • Cover all water sources and leave the sink dry to ensure that the salt has the desired effect on the mice.
  • Don’t limit yourself to cheese alone; you can also try bacon, oily fish, or any other strong-smelling food you can find, but always keep the salt at the 80-gram threshold.

Large Amounts Of Salt And Rat Chow

  • To create this killer diet, you should get 930 grams of rat chow, which is a type of food designed to attract lab rats.
  • Then, get at least 80 grams of salt and put it in an odorless bowl or dish. Think about it for a moment; getting such a small animal to consume 80 grams of salt is not easy. For this reason, you must mix these ingredients properly so that the mice will eat it all without heartburn being a problem during the feast.

A Final Thought On Killing Mice With Salt

Can we kill mice with salt? If and only if we can get them to consume 75 to 80 grams of salt. This task is hard to achieve, so it is best to use baits such as cheese, bacon, fish, or Rat Chow. These baits will trick the rodents into consuming the dose of salt that will cause their extermination.