Fresh

Aldehydes smell like a crisp, almost electric freshness—imagine the sharp, waxy brightness of a newly opened bar of soap, or that clean snap you get when you peel the white pith from inside a lemon skin. There's a slightly soapy, almost metallic quality that's oddly luxurious and powdery. They're not quite fruity or citrus themselves, but rather the *idea* of cleanliness—the scent of polished surfaces and starched linen. Some find them slightly peppery or even a touch metallic, like touching a cool stainless steel sink on a bright morning.

Woody