| It is found at the base of the hop cone petals inside tiny golden spheres called lupulin glands. |
| They contain all the vegetative and lupulin material of raw leaf hops and can be used as a full replacement for leaf hops in the brewing process. |
| It is very important that the hop doesn't lose lupulin otherwise the hop is no longer bitter. |
| Finding this far better, I asked Mr. Phillips if he could not prepare for me lupulin, or the anodyne of hops. |
| Essential oils and lupulin resins are concentrated in the lupulin glands, found at the base of the leaves, close to the central stem. |
| Chemical analysis of lupulin reveals bitter substances, including the alkaloids codeine and morphine, which are responsible for the bitter flavor of hops. |
