It's pretty important to use exact measurements in this recipe. You need to get an exact texture to form the shape without too much liquid that will activate the fizz. I used a kitchen measuring scale. I combined all the dry ingredients into a medium size bowl.
Then I combined the wet ingredients in a small measuring cup. I used the jojoba oil because I love the way it feels on my skin. I also added about 1/2 teaspoon of Vegetable Glycerin to my wet mixture. I love, love, LOVE the way it feels! Glycerin is known to keep moisture in. I use it in all of my sugar scrub and soap recipes. If you decide not to use it, you just need to compensate with a bit more water in your recipe.
The consistency you want to get to is just enough to hold these ingredients together when you squeeze in your hand. If the powder falls apart, you need more liquid. Be very careful to add liquid in very small amounts so you don't activate the fizz. I use a fork and drop a few drops at a time mixing it as it's added. A kitchen whisk would be perfect for this job.
If you decide to add dried flowers, make sure you have dried them or they are food grade dried flowers. You don't want unknown pesticides in your bath. Not only that but if you do add the dried flowers you will need to clean the bath when you are done. Just keep that in mind if you do add them.
I have two different size ball forms. You can use any type of mold you would like. I even made some cupcake bath bombs for my daughter. She loves them! I find the plastic candy molds work perfectly! They are made of a hard enough plastic that works perfectly to shape these lovely fizzy bath bombs. They come out really easily too. The silicone molds do not work well for this at all.
I also used a small round bulb that is split in the middle and looks like a christmas decoration to shape the round bath bombs. I love this tool and there are a few different sizes. You can see the Christmas Fillable Ornaments here on Amazon if they are out of season at your local craft store. If not, Hobby Lobby has a 40% off weekly coupon that is always active on the app on your phone. I always have that handy when checking out.
After you form the shape, you will want to let it set out without touching it to become hard. If you pick it up too soon it may just fall apart. If you are in a hurry to get them to form, I have found the freezer temperature to help speed this process. I usually leave them for about 3o minutes or so with a fan on. I can probably get away with about 5 to 8 minutes in the freezer.
We tend to make the smaller sized bath bombs and keep them sealed in a mason jar by the tub. If you leave them unsealed they tend to lose their beautiful fragrance and fizz after a while. You could also wrap them in heat plastic or a beautiful decorative foil too. These make excellent homemade gifts.