- Step 1
- Stir the citric acid, cornstarch, baking soda and ginger and mustard powders in a medium bowl. (look for citric acid in the canning aisle of the grocery store)
- Step 2
- Pour the sweet almond oil into a measuring cup. Add the eucalyptus essential oil with a pipette and stir.
- Step 3
- Pour the oil mixture into the bowl containing the dry ingredients and stir until you get a crumbly consistency.
- Step 4
- Use your hands to press the mixture into a mold. Let sit in a cool spot overnight, then remove from the mold.
- Step 5
- To use, drop one bomb into a tub of warm water, hp in and get your fizz fix for 20 minutes. Store the rest in a large plastic container for your next use.