I made the smaller spheres and they seemed to be perfect. I used the basic recipe: cornstarch, baking soda, citric acid, and Epsom salts, added essential oil for fragrance, food coloring for color, light almond oil, and witch hazel spray. I removed them from their mold after about 20 minutes and set them out to dry. The next morning they still looked perfect so I gently placed them in a ziplock bag for storage. Later that day they were cracked in the bag. I'm not sure why because once they were put inside the ziplock, they were not touched.
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