There are hundreds of aromas commonly found in hops, however Harper’s scale, published in 1985 in the Atlas of Odor Character Profiles, is today seen as the standard.
| Aroma | Description |
| Floral | Elderflower, chamomile blossom, lily of the valley, jasmine, apple blossom, rose, geranium, carnation, lilac, lavender |
| Citrus | Grapefruit, orange, lemon, lime, bergamot, lemon grass, ginger, tangerine |
| Sweet Fruit | Banana, watermelon, honeydew melon, peach, apricot, passion fruit, lychee, dried fruit, plum, pineapple, cherry, kiwi, mango, guava |
| Green Fruit | Pear, quince, apple, gooseberry, white wine grapes |
| Berry | Cassis, blueberries, raspberries, blackberries, strawberries, cassis (black currant), red currant, wild strawberries, cranberries |
| Cream Caramel | Butter, chocolate, yogurt, honey, cream, caramel, toffee, coffee, tonka, vanilla |
| Woody Aromatic | Tobacco, cognac, barrique, leather, woodruff, incense, myrrh, resin, cedar, pine, earthy |
| Menthol | Mint, lemon balm, camphor, menthol, wine yeast |
| Herbal | Lovage, thuja, basil, parsley, tarragon, dill, fennel, thyme, rosemary, marjoram, green tea, black tea, mate tea, sage |
| Spicy | Pepper, chilli, curry, juniper, aniseed, nutmeg, liquorice, clove, gingerbread, fennel seeds |
| Green Grassy | Green-grassy, fresh cut grass, hay, tomato leaves, green peppers, nettle |
| Vegetal | Celery stock, celery root, leek, onion, artichoke, garlic, wild garlic |