Why Put Vodka In Essential Oil Spray. Since oil and water dont mix vodka is there to help disperse the oil. This is why its important to only add the distilled water AFTER shaking the oils into the vodka.
The alcohol will also help the scent linger longer as well act as a preservative. Grain Alcohol ethanolis a preservative if used in high enough concentration. The essential oils wont mix into the water on their own but when diluted in the vodka first they will combine more efficiently.
I dont recommend using rubbing alcohol.
However when making room sprays I find rubbing alcohol works just as well. Vodka is a natural disinfectant. You can mix and match essential oils for a signature scent. The essential oils wont mix into the water on their own but when diluted in the vodka first they will combine more efficiently.

