Fragrance Oils for Candle Making: UK Supplier Guide & Tips
Posted by Andrew Sanderson on
Choosing the right fragrance oil is one of the most important decisions a candle maker can make. The scent you pick can define your brand, delight your customers, and set your candles apart in a growing market. For UK crafters, the options are plentiful, with several dedicated suppliers offering oils that are purpose-designed for candle making. This guide covers what to look for, where to find high-quality oils, and how to achieve the best scent throw in your candles.
What to Look for in a Candle Fragrance Oil
Ethical and Clean Ingredients
Many candle makers now seek oils that are free from controversial chemicals. Some suppliers, such as Fragrance Oils Direct, advertise their fragrance oils as vegan friendly, cruelty free, phthalate free, paraben and silicon free, and PEG free. These claims are not universal across the industry, so it pays to check each supplier's ingredient and testing policies before buying. Oils with cleaner formulations are often better suited to candles, especially if you aim to market your products as natural or conscious choices.
Scent Throw and Wax Pairing
A fragrance oil’s performance in a candle depends on the type of wax you use. Different waxes – such as soy, rapeseed, coconut, or paraffin – each have their own compatibility with specific fragrance notes. Experienced crafters often advise testing new oils in small batches before committing to large runs.
How Much Fragrance Oil Should You Use?
We recommend starting with a 6 to 8 percent fragrance load for most candles. This percentage means using 6 to 8 grams of fragrance oil per 100 grams of wax. However, this is a general starting point. Different waxes have different maximum fragrance load capacities, and some oils are stronger than others. Always consult your wax supplier’s guidelines and run a few test candles to find the load that gives you a strong, clean scent without compromising the burn quality.
Testing Your Fragrance Oils at Home
Before you commit to a full batch, test each new fragrance oil in the wax you plan to use. Pour a small candle with the recommended 6 to 8 percent load, allow it to cure for at least 48 hours, and burn it in a room with no drafts. Note the scent throw (how strong the fragrance is when the candle is unlit and when it burns) and check for any signs of poor performance such as soot, tunnelling, or a weak scent. Repeat the test with different wick sizes to find the best match. Proper testing helps you deliver consistent, high-quality candles to your customers.
Storing Your Fragrance Oils
To preserve the quality of your fragrance oils, store them in a cool, dark place away from direct sunlight and extreme temperatures. Keep the lids tightly closed when not in use to prevent oxidation and evaporation. Most fragrance oils have a shelf life of a year or more when stored correctly, but it is wise to label each bottle with the purchase date and use them in rotation. Good storage practices help maintain the strength and accuracy of the scent.
Frequently Asked Questions
What is the best fragrance load for a candle?
We reccomend a starting fragrance load of 6 to 8 percent. This works well with many wax and oil combinations. However, different waxes have different capacity limits, so always check your specific wax supplier's advice and adjust based on your own testing results.
Are all fragrance oils for candle making vegan and cruelty-free?
Not all fragrance oils are vegan or cruelty-free. Suppliers like Fragrance Oils Direct clearly state that their oils are vegan friendly, cruelty free, phthalate free, paraben and silicon free, and PEG free. Other suppliers may not make the same claims, so you should review their ingredient and testing policies before purchasing to ensure the oils match your ethical standards.
Do I need to test fragrance oils in different waxes?
Yes, testing is essential. Each wax has a unique chemical composition that interacts with fragrance oils differently. A scent that performs beautifully in soy wax may behave poorly in rapeseed or coconut wax. Testing small batches with the same wick size and cure time will help you find the best match, ensuring consistent scent throw and a safe, clean burn every time.