How to Make Kawakawa Oil: A Simple Guide
Kawakawa oil is made by steeping dried kawakawa leaves in a carrier oil. It is a gentle, satisfying project to try at home, and you do not need anything fancy to get started.
Choosing a Carrier Oil
The carrier oil you choose affects how the finished oil feels on the skin and how it smells.
- Olive oil: Richer feel with a distinctive, natural scent.
- Sunflower oil: Lighter, more neutral option that lets the leaf character come through.
Ingredients and Equipment
The following quantities provide a starting point for a small home infusion.
Ingredients
- 1 cup dried kawakawa leaves
- 2 cups carrier oil
Equipment
- A clean, dry glass jar or heat‑safe container
- A double boiler for the warm method
- A fine strainer and dry muslin
- A clean, dry bottle and label
Step-by-Step Method
1. Prepare the leaves
Use kawakawa leaves that you can identify confidently. Exclude any leaves with visible mould, soft or decaying patches, or signs of contamination.
If the leaves are washed, allow additional time for drying. They should be crisp or brittle throughout, without damp areas.
If you cannot be sure they are fully dry, do not use them for an infusion you plan to store.
2. Choose an infusion method
Place the dried leaves in a clean, dry container and add the carrier oil. Use approximately two cups of oil for each cup of dried leaves, keeping the leaves fully submerged.
You can infuse the oil with gentle heat or slowly at room temperature.
Warm infusion:
- Temperature: approximately 40 to 50°C.
- Duration: around 3 to 4 hours.
- Use indirect heat, such as a double boiler, and monitor the temperature.
Slow infusion:
- Location: a cool, dark place away from direct sunlight and heat.
- Duration: approximately 4 to 6 weeks.
- Inspect the sealed container periodically for signs of change.
Discard the batch if you notice:
- Mould on the leaves or in the oil.
- Condensation inside a sealed container.
- Unexpected cloudiness, bubbles or separation that does not resolve with gentle shaking.
- Unusual or rancid odour.
3. Strain and bottle
Strain the oil through a fine sieve lined with clean, dry muslin. Transfer it to a clean, dry bottle, close securely and label it with the ingredients and preparation date.
If you prefer a clearer oil, strain a second time through fresh muslin. A dark glass bottle is ideal for storage.
Keeping a simple record of the carrier oil, quantities and infusion method makes the preparation easier to repeat or compare.
What Affects the Finished Oil?
Moisture, heat, light and contamination can affect the oil over time, along with your choice of carrier oil and infusion method.
Storage and Vitamin E
Keep the sealed bottle away from direct light and heat, and avoid introducing water during handling.
Vitamin E is not a preservative. It may help slow oil oxidation, but it does not prevent microbial growth caused by moisture or contamination.
Quick Safety Summary
This guide provides a general starting point for home infusions. The method has not been validated to establish microbial safety or shelf life.
Appearance and smell alone cannot confirm that an infusion is safe. Oil intended for sale or use in a finished skincare product may require further product‑safety and shelf‑life assessment.