What is IFRA certification for candle fragrances?

IFRA (International Fragrance Association) sets the maximum limits for the safe use of fragrance ingredients. For candles, the relevant category is Category 12. IFRA certification confirms that the fragrance keeps within these limits — not that the candle will smell good or burn properly.

How much IFRA fragrance can I put in a candle?

The IFRA limit tells you how much you’re allowed to put in from the point of view of chemical safety. A permitted percentage of 100% doesn’t mean the candle can carry 100%. In practice, most plant waxes become unstable above 10–12%: they sweat oil, lose control of the burn and the wick stops working properly.

Why doesn’t my candle smell even though I kept within the IFRA limits?

Because IFRA regulates safety, not scent performance. A candle works as a system — wax, wick, container, temperature and fragrance concentration. If one of these isn’t calibrated properly, the hot throw is missing, however IFRA-compliant the fragrance is.

What is the spoon test and how does it help me?

The spoon test is a quick 30-second filter: a drop of fragrance on a metal teaspoon, a few seconds of heat, and you smell it straight away. The heat forces the top notes to evaporate and shows how the fragrance behaves when hot — before you risk wax, wicks and time. A fragrance that doesn’t hold up in the spoon test won’t perform any better in a lit candle.

What does it mean that a fragrance comes from a batch made to order?

Each Servus batch is made to order by French Color & Fragrance International (Germany), with a specific internal code. The documentation — the IFRA certificate and the SDS — is tied to that actual batch, not to the product in general. The label on the bottle carries the code of the batch in your hands, which means full traceability from the factory to the workshop.

Do I need the SDS if I already have the IFRA certificate?

Yes. They’re different documents with different roles. The IFRA certificate sets the limits for safe use for the end consumer. The SDS (Safety Data Sheet) describes the chemical properties, the handling risks and the storage conditions — essential information for the maker working with the raw material in the workshop.

IFRA fragrances for candles: limits vs reality

You did everything right… and the candle still doesn’t smell

You chose a good wax. You put in 8% fragrance. You followed the “rules”.

You light the candle. You wait. And… nothing.

Or worse: it smells heavy, tiring. The customer doesn’t come back.

At that point, most people change the wax. Or the wick.

But the right question rarely comes up:

Have you really understood what IFRA says?

I’m Sînziana — and this is one of the most common misunderstandings in the workshop. Makers who follow IFRA perfectly. And still their candles don’t work.

Not because they get it wrong. But because they rely on a document that doesn’t tell the whole story.

What IFRA actually is

IFRA is not a performance guarantee.

It’s a safety limit.

It tells you:

where you can use the fragrance
how much you’re allowed to put in
so as to avoid health risks

That’s all.

It doesn’t tell you:

whether the candle will smell
whether it will have hot throw
whether it will burn clean

IFRA isn’t your candle’s recipe. It’s only the boundary you’re allowed to work within.

A safe candle isn’t automatically a good candle.

The mix-up that costs the most

An IFRA limit of 20% doesn’t mean your candle can carry 20%.

In practice, most plant waxes start to become unstable above 10–12%. They sweat oil. They lose control of the burn. The wick stops working properly.

IFRA tells you how much you’re allowed to put in from the point of view of chemical safety. It doesn’t tell you how much your system can carry — wax + wick + container + temperature.

How to read an IFRA certificate in 30 seconds

You don’t need to understand the whole document. Just two things:

The product category → for candles: Category 12

The maximum percentage → a real example: 100%

The correct reading: you can use the fragrance with no IFRA limit imposed from a safety point of view.

Careful — IFRA tells you how much you’re allowed. It doesn’t tell you how much you need.

The Servus table: the real difference

What the IFRA certificate says	What the maker thinks	The reality in the workshop
100% permitted	I can put in as much as I like	The candle smokes or sweats oil
Only a maximum, not a dose	6–8% is the perfect recipe	It can be too little, with a weak hot throw
Complete documentation	The product is automatically good	Safety doesn’t guarantee scent impact

Where the theory breaks down

We’ve had fragrances that were perfect on paper. Within IFRA limits. Fully documented.

And still: they had no hot throw. They got lost in the wax. They said nothing when they burned.

Why? Because fragrance doesn’t work alone. It goes into a system: wax, wick, container, temperature, concentration. Change one — and you change everything.

It wasn’t a document problem. It was a system problem.

The Servus Performance Triangle

A candle only works when there’s a balance between three elements:

Safety → what IFRA guarantees
Compatibility → wax + fragrance, tested together
Mechanics → the right wick for your system

Missing one = guaranteed problems. And IFRA covers only the first corner of the triangle.

If two candles have the same fragrance but different results, the problem isn’t the fragrance. It’s the system.

The first real filter: the spoon test

Before you risk a kilogram of wax, wicks and time — there’s a simple 30-second test.

A drop of fragrance on a metal teaspoon. A few seconds of heat. You smell it straight away.

The heat forces the top notes to evaporate quickly and shows you exactly what the customer will smell when the candle is burning.

If the fragrance doesn’t hold up here — we don’t push it any further. We don’t change the wax. We don’t raise the percentage.

A fragrance that fails the spoon test won’t get any better in a lit candle.

We’ve explained exactly how it works and how to read the results in the article: Why doesn’t your candle smell when it burns? The spoon test and the chemistry of volatility

How we choose fragrances at Servus

Servus fragrances don’t come from generic warehouse stock.

Each batch is made to order by French Color & Fragrance International — a specialist manufacturer in Germany — with our customer code and the batch’s internal reference.

When you get the bottle, the label carries exactly that code.

The documentation — the IFRA certificate and the safety data sheet (SDS) — is tied to the actual batch, not to the product in general. You don’t get what was valid six months ago. You get the documentation for the batch in your hands.

Minimal risk. No guesswork.

You can order a small unit, test it in your own workshop, check the documentation and decide with full knowledge.

And if you produce regularly and want to understand why serious workshops don’t change supplier — there’s a next level in your relationship with Servus. You’ll discover it yourself, after your first order.

Conclusion

IFRA is the beginning. Not the end.

You get safety from the document. You check compatibility with the spoon test. You build the result in the workshop — with a calibrated system, tested materials and real documentation for each batch.

The fragrances in the Servus collection aren’t chosen by how they smell in the bottle. They’re chosen by how they behave in the wax.

→ See the category: Fragrance Oils — Candles & Soap

In the workshop, we don’t pour hopes. We pour only what has passed the tests.