Does More Fragrance Oil Make a Candle Smell Stronger?
Your candle doesn't smell strong enough.
The obvious solution seems to be:
Add more fragrance oil.
More fragrance should mean more scent.
Right?
Not necessarily.
What Is Candle Fragrance Load?
Fragrance load describes the amount of fragrance incorporated into your candle formulation.
It's an important formulation variable—but it's not a volume knob where continually increasing the percentage automatically gives you a stronger candle.
Current candle formulation guidance also emphasizes that increasing fragrance load doesn't guarantee stronger hot throw and can affect other aspects of candle performance.
Your Wax and Fragrance Have to Work Together
When making scented candles, you're creating a material system.
The fragrance doesn't exist independently from the wax.
And once you light the candle, you're introducing another important part of the system:
combustion.
That's why changing fragrance concentration can affect more than scent.
Maximum Doesn't Mean Optimum
This is another distinction worth understanding.
A supplier may tell you the maximum fragrance load recommended for a particular material.
That doesn't automatically mean:
“Use the maximum for the strongest candle.”
Maximum and optimum are two different ideas.
Your job as a candle maker isn't to squeeze as much fragrance as possible into wax.
Your job is to develop a finished candle that performs the way you intend.
Stop Solving Every Scent Problem With More Oil
When hot throw is weak, fragrance concentration is one variable you might investigate.
But it isn't the only variable in your candle.
That's why randomly increasing fragrance can sometimes leave you with the exact same question:
“Why doesn't my candle smell strong?”
Understanding the system gives you a much better foundation for answering it.
Learn Candle Making Through Science
If you want to understand why your candle behaves the way it does instead of simply collecting fragrance percentages from other makers, join my free Candle Making Science community.