Add 2 cups of baking soda in a medium-sized mixing bowl.

Pour in 1 cup of salt.

Next, measure out 1/2 cup of water, plus 1 1/2 cups castile soap in a glass measuring cup.

Slowly pour the soap and water mixture, a little bit at a time, into the baking soda and salt mixture. Stir.

Do not add ALL the liquid as you don’t want the baking soda mixture to be overly wet. Just add enough liquid, a little at a time, until it reaches a consistency where you can pack it together, but not too wet where it won’t hold its shape.

Then, stir in 10 drops each of lemon, orange, and grapefruit essential oils. You could also use lime or another citrus oil. You can make any combination you’d like, but I’d have at least 30 drops total to this mixture.

Next, use a tablespoon and scoop spoonfuls of the baking soda mixture onto a parchment paper-lined baking sheet.

It doesn’t have to look pretty (remember these will be going down your garbage disposal soon!) You will want your “drops” to be flatter vs round because it will dry out faster that way.

You can let your garbage disposal deodorizers air dry for a day or two or place them in the oven at 175 degrees for an hour and a half to two hours until they are dry.

Store them in an airtight glass container and keep them under the sink until you are ready to use them!