Craft brewers are after the lupulin inside hop cones. Those tiny yellow pods contain resins and essential oils that are the source of bitterness, aroma, and flavor in beer.
Strig
Lupulin
Lupulin
Bract
Bracteole
The stalk that connects hop cones to the main plant.
The outermost leaves
of the hop cone.
The inner structures
containing lupulin glands.