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. 2020 Oct 5;10:16450. doi: 10.1038/s41598-020-73341-4

Table 1.

Sensory attributes and corresponding references for panellist training.

Type Attribute name Reference standard
Aroma Floral Dried Celestial Seasonings chamomile tea
Green/vegetative Cut fresh cucumber and snap peas, green beans
Nutty Hazelnut oil
Taste Bitter 0.1% caffeine solution
Salty 0.15% iodized salt solution
Sour 1.25% citric acid solution
Sweet 2% sucrose solution
Flavour by mouth Ashy Spent Camel cigarette ash
Berry Mixed frozen berries defrosted
Black pepper Ground black pepper
Black tea Lipton brewed black tea
Brothy 1 tsp Better than Bouillion vegetable stock in hot water
Brown roast Starbucks French roast coffee
Brown spice Equal parts dried ground cinnamon, nutmeg, cloves
Brown sugar Signature Select light brown sugar
Cereal Unsweetened Chex breakfast cereal
Citrus Sliced lemon and grapefruit
Dark chocolate Hershey’s Cocoa Powder, 90% Ghirardelli dark chocolate
Dark green Green Giant cut green beans
Dried fruit Sunsweet dried prune and prune juice
Earthy Wet potting soil
Fermented GT’s Enlightened Organic Raw Unflavored Kombucha
Fresh green Cut fresh cucumber and snap peas
Fruity Tree Top Applesauce
Molasses Grandma’s Original Molasses
Nutty Equal parts raw hazelnut, almond, walnut, and cashew, well mixed
Papery/musty Damp cardboard
Rubber Rubber band, pencil eraser
Smoky Wright’s liquid smoke
Tobacco Camel cigarette tobacco
Woody Wood chips, cedar ball
Mouthfeel Astringent 2% alum solution
Viscous (body) 5% starch solution

Bolded references were aqueous solutions (mass percent) consumed by mouth; all others were aroma references.