Fragrance Load for Beginners: How Much Fragrance Oil Should You Use in a Candle?

If you are brand new to candle making, one of the first terms you are going to hear is fragrance load.

You may see candle makers talking about 6%, 8%, 10%, or even 12% fragrance loads and wonder:

What does that actually mean?

And maybe even more importantly:

How do I know which percentage I should use?

The good news is that fragrance load is much easier to understand once you break it down.

What Is Fragrance Load?

Fragrance load is simply the amount of fragrance oil used in relation to the amount of wax in your candle.

For example, if you are using:

• 1 pound of wax
• An 8% fragrance load

You would use fragrance oil equal to approximately 8% of the weight of your wax.

In candle making, fragrance oil should be measured by weight, not by tablespoons, teaspoons, droppers, or fluid ounces.

A digital scale will be one of your most important candle-making tools.

What Does an 8% Fragrance Load Mean?

Let’s make this really simple.

Suppose you have 16 ounces of wax.

At an 8% fragrance load:

16 oz wax × 0.08 = 1.28 oz fragrance oil

So you would use:

16 ounces of wax + 1.28 ounces of fragrance oil

That is your starting formula.

The same idea works whether you are making one candle or fifty candles.

What Fragrance Load Should a Beginner Start With?

There is no single fragrance load that works perfectly for every candle.

However, many candle makers work somewhere around the 6% to 10% range, depending on the wax, fragrance oil, wick, container, and desired scent strength.

For someone just beginning, around 8% can be a very reasonable testing point if your particular wax is designed to hold that amount of fragrance.

Think of 8% as a starting experiment — not a magic number.

You might eventually discover that one candle performs beautifully at 7%, while another performs better at 9%.

That is completely normal.

Check Your Wax Before Choosing a Fragrance Load

Before deciding how much fragrance oil to use, check the manufacturer’s instructions for your wax.

Different waxes have different fragrance-oil capacities.

One wax may recommend a maximum fragrance load of 10%, while another may have a different recommendation.

Never assume that because another candle maker uses 12% fragrance oil, your wax should too.

Your wax manufacturer’s specifications should always be one of your first stops.

Also remember that the maximum fragrance load is not necessarily the best fragrance load.

If a wax can hold up to 10%, that does not mean every candle made with that wax should contain 10%.

It simply means you have room to test within the recommended range.

More Fragrance Oil Does Not Always Mean More Scent

This is one of the most important things a beginner can learn.

It seems logical that if an 8% fragrance load smells good, a 12% fragrance load should smell even stronger.

Unfortunately, candles do not always work that way.

Adding too much fragrance oil can actually cause problems.

You may experience:

• Poor burning
• Wick problems
• Excessive smoking or soot
• A weak or unstable flame
• Fragrance oil separating from the wax
• Oil appearing on the candle surface
• Poor hot throw
• Changes in the wax texture
• Difficulty getting a consistent candle

Sometimes less fragrance oil produces a better-performing and stronger-smelling candle.

Candle making is all about balance.

What Is Cold Throw?

Cold throw is how strongly your candle smells when it is sitting unlit.

For example, if someone removes the lid from your candle and immediately smells the fragrance, that is cold throw.

A strong cold throw is nice, but it does not tell you everything about how the candle will perform when burning.

What Is Hot Throw?

Hot throw is the fragrance you smell while the candle is burning.

For most candle makers, hot throw is one of the biggest goals.

You want the fragrance to travel through the room without the candle burning poorly.

Your fragrance load can affect hot throw, but it is only one piece of the puzzle.

What Else Affects Fragrance Strength?

This is where candle making gets interesting.

If your candle does not smell strong enough, the answer is not automatically to add more fragrance oil.

Fragrance performance can also be affected by:

• The type of wax
• The fragrance oil
• Wick size
• Wick type
• Container diameter
• Candle size
• Fragrance load
• The temperature at which fragrance is added
• How well the fragrance and wax are mixed
• Pouring conditions
• Cure time
• Room size
• Air movement in the room

That is why experienced candle makers test one change at a time whenever possible.

If you change your wax, wick, fragrance load, container, and pouring temperature all at once, you will have no idea which change helped — or hurt — your candle.

Does Every Fragrance Oil Work the Same at the Same Percentage?

No.

Fragrance oils can behave very differently from one another.

You may have one fragrance that smells fantastic at 7%, while another fragrance performs better at 9%.

A strong peppermint fragrance, for example, may behave very differently from a delicate vanilla, floral, or soft musk fragrance.

That does not necessarily mean something is wrong with the fragrance.

It simply means candle formulas often need individual testing.

Should I Use the Same Fragrance Load for Every Candle?

You can certainly choose one percentage as your standard starting point.

That makes testing much easier.

For example, you might decide:

“I am going to begin testing all of my fragrances at 8%.”

Then test each candle.

If the candle performs beautifully, you may not need to change anything.

If the fragrance seems too strong, too weak, or the candle does not burn properly, you can adjust the formula and test again.

Over time, you may find that most of your fragrances work wonderfully at the same percentage, while a few require adjustment.

How Do I Decide Whether to Increase My Fragrance Load?

Before increasing fragrance oil, ask yourself a few questions:

• Did you allow the candle enough time to cure?
• Is your wick appropriate for the candle?
• Is the melt pool developing properly?
• Did you follow the wax manufacturer’s recommendations?
• Did you weigh your ingredients accurately?
• Did you add the fragrance at an appropriate temperature?
• Did you mix the fragrance thoroughly into the wax?
• Have you actually burn-tested the candle long enough to judge its hot throw?

If everything else looks good and the fragrance still seems too light, then testing a slightly higher fragrance load may make sense.

Instead of making a huge jump, make a small adjustment.

For example:

8% → 9%

Then test again.

How Do I Know If I Am Using Too Much Fragrance Oil?

There is not always one obvious sign, but watch for things such as:

• Oil collecting on the candle
• Fragrance separating from the wax
• A struggling flame
• Excessive soot or smoke
• Unusual burning behavior
• An unstable wick
• A candle that actually smells worse when you increase the fragrance

If your candle begins behaving badly after increasing the fragrance load, adding even more fragrance oil is probably not the solution.

Go back to your previous formula and compare the results.

What If My Wax Says It Can Hold 12% Fragrance?

That means the wax manufacturer indicates that the wax may be capable of holding that amount.

It does not mean you need to use 12%.

If your candle performs beautifully at 8%, there may be no reason to increase it.

Using additional fragrance oil also increases the cost of every candle you make.

For a candle business, finding the lowest fragrance load that gives you the performance you want can help keep your candles consistent and your costs under control.

Fragrance Load and Wick Testing Go Together

Changing your fragrance load changes your candle formula.

That means it may also change how your candle burns.

If you develop a candle at 8% fragrance and then increase it to 10%, do not automatically assume that all of your previous wick testing still applies.

Burn-test the new formula.

This is especially important if you plan to sell your candles.

Keep Good Candle-Making Notes

One of the best habits a new candle maker can develop is keeping records.

Write down:

• Wax used
• Fragrance name
• Fragrance load
• Amount of wax
• Amount of fragrance oil
• Wick type
• Wick size
• Container
• Fragrance-add temperature
• Pour temperature
• Cure time
• Cold throw
• Hot throw
• Burn-test results

It may feel unnecessary when you are only making one or two candles.

Trust us — once you have tested fifteen different fragrances, three wick sizes, and four fragrance loads, everything starts blending together.

Your notes become incredibly valuable.

A Simple Beginner Testing Example

Suppose you are using a wax that allows you to work within your desired fragrance range.

You might begin with:

Test Candle #1 — 8% fragrance load

Let it cure according to your wax and candle-making procedure, then perform a proper burn test.

If it performs well and smells great, wonderful. You may have your formula.

If the scent seems lighter than you want but the candle otherwise burns correctly, you might make:

Test Candle #2 — 9% fragrance load

Then compare the two.

You may discover that 9% is noticeably better.

Or you might discover something surprising:

The 8% candle smells stronger and burns better.

That is why we test.

Do I Include Fragrance Oil in the Final Candle Weight?

Yes.

If you use:

• 16 ounces of wax
• 1.28 ounces of fragrance oil

Your total mixture weighs approximately:

17.28 ounces

This becomes important when you are trying to figure out how much wax and fragrance you need to fill your containers.

Fragrance Load vs. Fragrance Percentage

You may occasionally see candle formulas calculated in slightly different ways depending on how a candle maker or manufacturer defines the percentage.

Some calculations base the fragrance percentage on the weight of the wax, while others may describe fragrance as a percentage of the total finished mixture.

This can produce slightly different numbers.

For beginners, the most important thing is to determine which method your wax supplier or formula uses and stay consistent.

Do not bounce back and forth between calculation methods without realizing it.

Always Weigh Your Fragrance Oil

Do not measure candle fragrance oil by volume.

Two fragrance oils can have different densities, which means the same fluid volume does not necessarily weigh the same amount.

Use a digital scale and measure both your wax and fragrance oil by weight.

For small test candles, a scale capable of measuring very small increments can make your formulas much more accurate.

Your Fragrance Load Is Part of a Formula

Try not to think of fragrance load as an isolated number.

A successful candle is a complete system:

Wax + fragrance oil + fragrance load + wick + container + temperatures + cure time + testing

Every part affects the others.

That is one of the reasons candle making requires some experimentation.

You are not simply trying to fit the maximum amount of fragrance into a jar.

You are trying to create a candle that:

• Smells wonderful
• Burns correctly
• Performs consistently
• Is repeatable
• Works safely as a complete formula

The Best Fragrance Load Is the One That Works

There is no trophy for using the highest fragrance percentage.

If your candle smells fantastic and burns beautifully at 7%, then 7% may be exactly what that candle needs.

If another formula performs better at 9%, use 9%.

Your goal is not to chase a number.

Your goal is to create a candle that performs the way you want it to.

Beginner Fragrance Load Cheat Sheet

If you remember nothing else, remember these basics:

• Fragrance load tells you how much fragrance oil you are using compared with your wax.
• Always weigh wax and fragrance oil with a scale.
• Check the fragrance recommendations and maximum load for your specific wax.
• Maximum fragrance load does not mean recommended fragrance load.
• More fragrance oil does not automatically create stronger hot throw.
• Around 8% can be a useful beginner testing point when appropriate for the wax you are using.
• Change your fragrance percentage gradually.
• Burn-test your candles whenever you change the formula.
• Keep detailed notes.
• Judge the entire candle — not just how strong it smells in the jar.

And perhaps the biggest lesson of all:

Test, take notes, adjust, and test again.

That is not a sign that you are doing something wrong.

That is candle making.

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Keep Learning

Brand new to candle making?
Start at the very beginning with our step-by-step beginner’s guide:

Candle Making for Absolute Beginners: From Idea to Your Finished Candle →

Having trouble with weak scent throw?
Learn what can affect both hot and cold throw and what to check before changing your fragrance load:

Troubleshooting Weak Hot or Cold Throws →