Put the herbal material into the jar and pour your carrier oil of choice inside.
Place the jar into crockpot filled with warm water set on low heat. I like to use repurposed canning rings or a small trivet to set inside the crockpot so the jar doesn’t sit directly on the heating element at the bottom.
Let the herbal oil heat up in the crockpot for 4-8 hours, stirring occasionally throughout the day.
Strain through a cheesecloth, sieve, herb press, or coffee filter, reserving the infused oil. (Discard the leftover herbal matter in your compost bin.)
Bottle your infused oil and use it in whatever medicinal or body care DIYs seem appropriate for the oil you made.
Recipe by Natural Living Family with Dr. Z & Mama Z at https://naturallivingfamily.com/homesteading-101-herbal-remedies-canning-and-preparation/