Cold Press vs. Heat Extraction: The Cost of Natural Materials

The extraction method of natural materials determines the final scent weight they present.

These two methods, cold press and heat extraction, are two completely different paths. They are not a matter of superiority, they are a matter of philosophy.

Cold press, also called expression. Suitable for citrus peel. The process is extremely simple: apply force, squeeze, let the aromatic substances hidden in the peel’s oil glands flow out directly. No heat, no solvent added. The resulting liquid is absolute.

The cost of cold press: extremely low yield. One ton of orange peel, yields only three to five kilograms of absolute. And because no heat is applied, the lightest, most unstable top note components in citrus molecules are completely preserved—but also means these components have extremely short lifespans after leaving the peel. Cold-pressed citrus, in a fragrance, is often the first layer to dissipate.

Heat extraction, also called distillation or solvent extraction. Plant material is heated, steam passes through it, carrying aromatic molecules, then condenses and separates. Heat extraction can yield more and more complex molecular structures—those heavy notes that cannot volatilize at low temperatures are opened by this process.

The cost of heat extraction: high temperature changes some molecular structures. Some extremely fragile floral molecules—indole in jasmine, phenylethyl alcohol in rose—are partially destroyed during heat extraction. Perfumers must use synthetic molecules to compensate in post-production.

This is not a secret. This is public knowledge.

But knowing and accepting are two different things.

Many brands choose to bypass this: using synthetic materials, not facing the limitations of natural materials. Synthetic materials can precisely replicate any molecule; batch differences can be controlled within one per mille. From a production efficiency perspective, this is the optimal solution.

OPALITESCENT chooses not to take this path.

Not a technical obsession. A values-based choice.

Cold-pressed citrus has a thirty-second lifespan; heat-extracted jasmine has damaged indole—these “imperfections” are the fingerprints of natural materials. Fingerprints are not meant to be erased. Fingerprints are meant to be seen.

The perfumer’s craft is not to turn natural materials into substitutes for synthetic ones, but to find within the limitations of natural materials their most honest aspect, then amplify it.

A fragrance, if it smells “too perfect”—with distinct layers and balanced structure from the first second to the last—it is most likely not natural. Something natural always has a place where you feel: something is missing here.

That “missing something” is its honesty.