Why Are My Bath Bombs Crumbling?

  • By: Carl
  • Time to read: 5 min.

Bath bombs are a popular addition to many people’s bath and shower routines, but sometimes it can seem like your carefully crafted creations just didn’t make the cut. If you’re finding that your bath bombs are crumbling or falling apart instead of fizzing away when dropped into the tub, read on to learn why this could be happening and what you can do to prevent it in the future.

Why Are My Bath Bombs Crumbling?

Bath bombs are typically made up of common kitchen ingredients like baking soda, citric acid, Epsom salts, essential oils, and other fragrances, colorants, and moisturizing or foaming agents. The three primary components that contribute to the success of your bath bombs are molds, ingredients, and binders. Each of these plays an important role in your end result.

Too Much Moisture/Humidity

When working with wet ingredients such as liquid oil or melted cocoa butter, excess moisture can cause issues for your bath bombs. If the environment you’re making them in is too humid or there’s an excessive amount of wet ingredients present in your batches, this could lead to crumbly results.

Poorly Shaped Molds

Bath bomb molds come in all shapes and sizes, from fun novelty shapes to simple round ones. To ensure good results every time you make a batch of bath bombs it’s important to use quality molds that fit together snugly when pressed together firmly. If there are gaps or openings between the two halves then air will be able to escape when drying leading to weaker results that crumble easily when used.

Too Little Binder or Binder in Wrong Type

The binder holds the mixture together while it is setting so it’s important to choose one carefully based on the moisture levels of your ingredients and environmental conditions. When adding a binder such as wheat flour or cornstarch make sure you only use enough for good adherence but not too much as this will lead to an overly dry mix that won’t hold its form well once removed from the mold resulting in crumbling bath bombs!

Solutions for Preventing Crumbling Bombs

Fortunately, there are some steps you can take to help minimize any further incidents of crumbling bath bombs:

Properly Store Your Bath Bombs in Airtight Containers

Bath bomb recipes should always be stored properly – ideally in an airtight container – before being added into molds if they have been exposed to moisture during preparation (unless they are being prepared immediately). Doing this will help keep humidity levels low which helps avoid any unwanted dampness being introduced into your recipe that could weaken its strength and cause them to crumble more easily than intended once finished drying!

Choose Quality Molds and Use Them Properly

It is recommended that quality molds be purchased from a reputable company as these products should have been designed with robustness and durability in mind which will mean less chance of crumbling after their dried-out period has ended due to poor craftsmanship on behalf of their manufacturer. Additionally ensuring that all molds fit together properly by pressing them firmly together before introducing wet ingredients into them prior also greatly improves their chances!

Pay Attention to the Amount of Binder Used While Making Your Bath Bombs

Another factor worth considering when trying to prevent crumbing bath bombs is paying attention to how much binder is added into each batch while making them – different recipes may require different amounts depending on their overall moisture content (which differs depending on both what kind of wet ingredient(s) you chose use plus whatever ambient humidity levels exist within an environment where product storing process taking place). This means being aware both types + quantities binders typically work best for each type mixture so the best possible outcome is achieved every time!

Bath Bomb Making Tips

Making bath bombs can be tricky, but with practice and proper technique, you can ensure success every time. Here are some additional tips to help prevent crumbing bath bombs:

– Don’t overmix your bath bomb ingredients as doing so will cause them to become too dry leading to crumbling results when they are finished drying out.

– Try to keep your bath bomb ingredients and finished bath bombs away from any humidity or moisture as this will weaken their strength resulting in crumbling bath bombs.

– Make sure to use quality molds that fit together snugly and securely, otherwise, air will be able to escape when drying which can lead to weaker bath bombs that crumble more easily than intended.

– Be mindful of the amount of binder you are using as too little or the wrong type can also lead to crumbing bath bombs!

By following these tips and techniques, bath bomb makers can rest assured that their bath bombs will stay in one piece and provide a luxurious bathing experience every time. With practice, bath bomb makers can create bath bombs that will remain intact and provide a blissful, relaxing bath time experience.

Bath Bomb Storage Tips

Once bath bombs have been created, it is important to store them in the correct conditions. Airtight containers are ideal for preserving bath bomb recipes and preventing crumbling bath bombs from occurring due to air getting trapped inside the container and causing dampness levels to rise over time.

Additionally, bath bombs should be stored in a cool, dry location away from any direct sources of heat or moisture and should be used within a reasonable time frame for best results. By following these bath bomb storage guidelines, bath bombs can remain intact and provide the perfect bath experience each and every time!

By keeping these tips in mind, bath bomb makers can ensure their bath bombs will always stay together and provide an enjoyable bathing experience. With practice, bath bombs can be created with precision and perfection that will stay together every time!

Frequently Asked Questions

How do I know if my bath bombs are too dry?

If your bath bombs are crumbling or coming apart easily when handled, they may be too dry. You can check the texture of the bath bomb mixture by taking a pinch between your fingers and testing it out. If it feels overly crumbly and breaks apart easily, it’s likely too dry.

What is the best way to store bath bombs?

It’s important to store bath bombs in an airtight container or bag that will protect them from moisture as this could lead to crumbling when used. Additionally, bath bombs should be stored at room temperature in a cool, dark area to help preserve their quality and prevent them from becoming too dry.

How can I tell if my bath bomb molds are good quality?

Quality bath bomb molds should be made with robustness and durability in mind. Look for reviews online as well as feedback from other customers to get an idea of the quality and reliability of bath bomb molds before purchasing them. Additionally, make sure to press the molds firmly together for proper adherence prior to introducing any wet ingredients into them.


In conclusion, crumbling bath bombs don’t have to be a thing at all anymore now that know the issues behind them better- all just need to follow a few tips above in order to get perfect fizzy treats each + every single time! Just remember to choose quality molds + store our products properly to prevent too much humidity from getting introduced to those lovely creations.

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