Pour 1 cup distilled water into a small mixing bowl, then add the lemon juice and stir to combine.
Add the castile soap and baking soda to the mixing bowl and whisk until well combined, being careful not to whip up the soap too much.
Add the lemon essential oil and stir to combine.
Transfer your lemon degreaser to the clean spray bottle using a funnel.
You'll notice that some baking soda has settled in the bottom of your mixing bowl. Pour the second cup of water into the bowl and stir to help get the remaining baking soda out of the bowl. Immediately pour the water baking soda mixture into your spray bottle through the funnel.
Secure the lid on the bottle of your Lemon Degreaser.