SWEETS AND GOURMAND SMELLS / gourmand · caramel · sweet
Maltol
Category
SWEETS AND GOURMAND SMELLS
Subcategory
gourmand · caramel · sweet
Origin
Volatility
Heart Note
Botanical
N/A - synthetic molecule (also found naturally in larch bark, roasted malt)
Appearance
white crystalline powder
Odor Strength
High
Producing Countries
N/A - manufactured globally
Pyramid
Heart
Sweet, caramelized, unmistakably warm and edible. Maltol smells like cotton candy at a fairground — spun sugar, toasted caramel, with a faint fruity undertone.
Intensely sweet, caramelized, cotton-candy-like. Warmer and more 'cooked sugar' than vanillin, which reads more as 'cream.' A subtle fruity-strawberry undertone at low concentrations. The sweetness is clean and dry rather than syrupy. On blotter, the caramel character is persistent and dominant. Maltol at full concentration can be almost overwhelmingly sweet.
Evolution over time
Immediately
Immediately
Intensely sweet, caramelized cotton-candy burst.
After a few hours
After a few hours
Clean sugar-sweet heart. Caramel character deepens. Subtle fruity undertone.
CAS 118-71-8. A naturally occurring pyranone found in the bark of young larch trees, in roasted malt, cocoa, coffee, and bread crust. Maltol is an important gourmand molecules in contemporary use — it provides a clean, sweet, caramelized character that reads as 'sugar' without being cloying.
The scent is intensely sweet, warm, and caramelized. It has a cotton-candy quality — spun sugar, toasted caramel — with a subtle fruity-berry undertone at lower concentrations. It is sweeter-smelling than vanillin (though chemically unrelated), and its impact is more 'sugar' than 'vanilla.' The ethyl derivative, ethyl maltol, is even sweeter and more common.
Maltol has transformed modern perfumery. Its introduction into mainstream fragrance formulation in the 1990s-2000s helped create the gourmand revolution — the category of fragrances designed to smell edible. It enhances sweetness perception even at trace levels and can make any composition read as warmer and more approachable.
Maltol was first isolated from larch bark in 1928, but its gourmand potential was not recognized by perfumers until decades later. The molecule's impact on the fragrance industry parallels monosodium glutamate's impact on food — both enhance a sensory quality (sweetness/umami) that the consumer perceives as intrinsic to the product rather than as an additive.
Extraction & Chemistry
Extraction method: Can be isolated from natural sources (larch bark, roasted malt) but is produced synthetically for commercial use. The standard synthesis involves the degradation of streptomycin or kojic acid derivatives. Also produced by fermentation. Ethyl maltol is produced by ethylation of maltol. Both are inexpensive and produced at large scale.
Molecular Formula
C6H6O3
CAS Number
118-71-8
Botanical Name
N/A - synthetic molecule (also found naturally in larch bark, roasted malt)
IFRA Status
No known restrictions
Synonyms
2-METHYL-3-HYDROXY-4H-PYRAN-4-ONE · MALTOL POWDER
Physical Properties
Odor Strength
High
Lasting Power
372 hours at 20% in benzyl alcohol
Appearance
white crystalline powder
Boiling Point
284.70 °C. @ 760.00 mm Hg (est)
Flash Point
240.00 °F. TCC ( 115.56 °C. )
Melting Point
159.00 to 162.00 °C. @ 760.00 mm Hg
In Perfumery
Sweet modifier and gourmand anchor in nearly all fragrance families. Maltol provides caramelized sweetness that transforms compositions — even 0.1-0.5% can shift a woody-amber into gourmand territory. It is central to praline, caramel, and cotton-candy accords. In non-gourmand contexts, trace amounts supports approachability. Ethyl maltol (4-6x sweeter than maltol) has largely superseded it in fine fragrance formulation, but maltol remains important in flavoring.
