Can You Put Epsom Salts in Hot Tubs?

Soaking in a hot tub is an excellent way to de-stress. The water relaxes your muscles and calms your nerves down, which is something we could all use every once in a while.

Along the same lines, some people use Epsom salts in baths as it helps in reducing soreness and muscle pain, and makes the skin supple and soft. Plus, it gives off a pleasant aroma, which provides relaxation and comfort.

So, the thought of adding Epsom salts in a hot tub might naturally cross your mind. But can you really put Epsom salts in a hot tub? The short answer is no–let’s dive into why.

What are Epsom Salts?

Epsom salts are basically a compound of magnesium, oxygen, and sulfur, collectively known as magnesium oxide. Because these salts come from mineral rocks, they have a neutral pH, so they are neither basic nor acidic.

In terms of appearance, Epsom salts look a lot like table salt, but they are bitter in taste due to their sulfate nature, which is why we cannot use them in food. However, Epsom salts serve as a very useful ingredient that can help cure internal imbalances and minor illnesses like constipation and insomnia. Given their therapeutic benefits, Epsom salts are becoming increasingly popular with baths. 

How Do Epsom Salts Work?

Before planning to add Epsom salts to your hot tub, you must know how it works. When dissolved in hot water, Epsom salts can release ions and become slightly acidic. This, in turn, can alter the water chemistry by improving its pH balance.

However, if you put a lot of Epsom salts in water, it will not dissolve. This can damage some of your best hot tub accessories, lead to scale buildup and blockage of drains, and necessitate more frequent hot tub filter cleaning.

So, despite their popularity in baths, adding Epsom salts to a hot tub is never a good idea!

Epsom Salts Alternatives

As indicated above, Epsom salts can lead to corrosive reactions and destroy the structure of your hot tub, so it’s better to try Epsom salt alternatives to relax in the hot tub. Here are two substitutes you can use instead of these salts.

1. 1Hot Tub Aromatherapy Products: These bath products have the same effect as Epsom salts as they contain magnesium sulfate, too. However, they are used in small quantities and dissolve as soon as you introduce them to hot water.
2. 2Spa Crystals: These are an all-natural blend of herbs, botanicals, minerals, and sea salts, which can easily act as a substitute for Epsom salts in hot tubs. These crystals can relieve stress and provide relaxation. Because these salts are made of natural ingredients, they won’t affect the water chemistry. Their natural blend also provides a hydrating effect, so the skin is left with a soft feel and healthy glow to it. What’s more, these bath crystals completely dissolve in hot water, which means they do not leave any residues or clog up drains.

Epsom Salts in Hot Tubs: Yes or No?

All in all, Epsom salts can prove to be a great remedy for stress relief–but it is never a good idea to add them to your hot tub, as they will also destroy your equipment and cause drain blockage. 

If you’re a fan of bubble baths, instead, check out our post on whether you can put bubble bath in a Jacuzzi.