how to package bath bombs

 Dec 27,2022

Bath bombs, also known as bath fizzers, are dry ingredients that are designed to effervesce once in contact with warm water. Once it hits the water, it releases Essential Oils, scents, colors, and bubbles to elevate your bath experience.

Baking soda
Citric acid
Epsom salts
Fragrance oils
Colourants
Surfactants

Bath bombs' primary ingredients are a weak acid and a bicarbonate base. These are unreactive when dry but react vigorously when dissolved in water to produce their characteristic fizzing over a period of several minutes. This is an acid-base reaction that involves the conversion of citric acid and sodium bicarbonate to monosodium citrate and carbon dioxide:

C₅H₇O₅CO₂H _(aq.) + NaHCO_{3 (aq.)} → C₅H₇O₅CO₂⁻Na⁺_(aq.) + H₂O_(l) + CO_{2 (g)}

The other ingredients in bath bombs can vary considerably. However, most contain scented ingredients and dye to impart a pleasant fragrance and color to bathwater. Lathering agents, such as sodium lauryl sulfate, are also often added to create bubble foam.

Before shipping them off, you need to do a few things to ensure your bath bombs arrive in one piece. Learn more below.

Bath bombs are made with baking soda and citric acid. When combined and introduced to water, they get a lovely fizzing reaction. However, this also makes them a bit tricky to store if there is any moisture in the air; they can start fizzing too early, puffing up or crumbling, and they won't be as fun in the tub.

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Preventing this starts during the bath bomb-making process. We recommend using witch hazel to wet the bath bombs, as water makes them fizz, and alcohol can dry them out. Use one hand to mix the powders and one hand to spritz the witch hazel. You can pack it tightly into moulds when it feels like wet sand and hold its shape when squeezed. Learn more in the Bath Bomb Molding Tips article.

The next important step is letting the bath bombs fully dry overnight or for up to 24 hours . They need to be stored in a cool and dry place. If you live in a humid climate, we recommend running a fan over them or using a dehumidifier.

Once they're dry and hard, you can move on to wrapping.

This method will keep your bath bombs protected from the elements. The extra layer helps protect them, making them ideal for selling or shipping.
For this method,you need shrink-wrap bands and a heat gun(you can find one at a home improvement store). Place the bath bomb in the shrink-wrap band and cut off any excess. Then,set the heat gun on low and aim it at the wrap for 1-2 seconds at a time. It should be fully adhered to all the way around.
If you don't have a heat gun, you can use a blow dryer. However, blow dryers don't get as hot, so they may not fully adhere to the shrink wrap. The same goes for plastic wrap in place of shrink wrap—when it's heated up, it stretches out instead of shrinking, so the seal won't be as tight.If you plan on making many bath bombs, a good heat gun and shrink wrap are worth the investment.

You can also use tinfoil in addition to shrink film, and we work with the top Aluminum Foil Container Manufacturer. Wrap the bath bomb tightly in aluminium foil, ensuring it's fully covered, then twist or fold the top to seal and store in a cool, dry place to maintain freshness.

Another option is our plastic bath bomb packaging. We designed these to be a mould and package in one, although you can use them how you see fit.
Once you pack in the mixture, put on the lid and then let them fully dry. The seals are airtight to protect your bath bombs.
However, if you live in an extremely humid climate, you may want to take a few extra precautionary steps . First, leave the bath bombs in the moulds overnight to hold their shape. Then, you can take off the lid or remove the bath bomb completely and let it sit in a cool and dry room overnight again. This just ensures every last bit of moisture evaporates, so they last longer. Lastly, pop them back into the moulds and make sure the lid is fully closed.

Bath bombs have a shelf life of about one year. A bath bomb will last only as long as its composite ingredient with the least shelf life. It is true that a bath bomb has a scent as sweet as an air freshener, but if it does expire, it will start to change its scent as well as its good looks and effect.

If your bath bomb starts to smell bad, break up or grow mould, it is a sign that it has expired, and you should learn to throw it out at this point.

Plug your bathtub.
Fill the bath with warm water (or whatever temperature you prefer).
Once the bath is full, get in the tub.
Add the bath bomb and watch it fizz and bubble!
Soak in the tub for 20 minutes, if you like.
After you’re done soaking, drain the water and use a cloth to wipe down the bathtub, if there is any dye or oil residue.