Learn more about Castile soap and how it’s possible for you to use it for a cleaner home.
What Is Castile Soap?
Named for the soapmaking Castile region of Spain where it was developed, Castile soap originated centuries ago.
The Spruce / Jorge Gamboa
It is a commonly used ingredient when makingDIY laundry detergent.
The soap is hypoallergenic and safe to use on pets.
Both the bar and liquid soaps are highly concentrated and should be diluted before use.
The Spruce / Jorge Gamboa
Castile soap is made from plant-based oils which are non-toxic and biodegradable.
As an alkaline soap, it should not be combined with acids like vinegar and lemon juice.
However, these gentle acids will rinse away any soapy residue that remains on surfaces.
The alkaline properties of Castile soap also make it unfriendly to plants.
Insecticidal Soaps For Garden Pest Control.Clemson University Cooperative Extension.