{"id":363848,"date":"2026-02-03T10:31:46","date_gmt":"2026-02-03T09:31:46","guid":{"rendered":"https:\/\/www.youwish.nl\/geen-onderdeel-van-een-categorie\/bath-bomb-coloring-techniques\/"},"modified":"2026-08-19T12:05:35","modified_gmt":"2026-08-19T10:05:35","slug":"bath-bomb-coloring-techniques","status":"publish","type":"post","link":"https:\/\/www.youwish.nl\/en\/bathbomb\/bath-bomb-coloring-techniques\/","title":{"rendered":"How to Color Bath Bombs Without Staining Your Tub"},"content":{"rendered":"\n

Have you ever crafted a gorgeous bath bomb, only to step out of the tub and find a stubborn colored ring left behind? It is a common headache for DIY makers. Fortunately, preventing this issue is simple once you know the right techniques and ingredients to use. In this guide, you will learn how to achieve vibrant colors without staining your bathtub or triggering premature fizzing while mixing your batch.<\/p>\n\n\n\n

\"Stain-free<\/figure>\n\n\n\n

Base Recipe and the Risk of Premature Fizzing<\/h2>\n\n\n\n

Before adding any color, you need a reliable base recipe. The classic bath bomb formula uses two parts baking soda<\/a> to one part citric acid<\/a>. The moment these dry ingredients come into contact with water, they trigger a carbonation reaction. Moisture from liquid colorants can easily set off this fizzing reaction too early, right in your mixing bowl.<\/p>\n\n\n\n

If you are using liquid bath bomb colorant<\/a>, wait until after you have thoroughly blended your oils into the dry ingredients and allowed the mixture to rest for about 10 minutes. Add the dye just 1 to 2 drops at a time, working it in immediately to prevent foaming. Alternatively, you can pre-mix water-based dyes directly into the baking soda, letting it dry completely before stirring in the citric acid.<\/p>\n\n\n