Currently, there are three common hop products: hop hash, hop extract and distilled hop oil.
Hop hash is universally used worldwide, whose production is over 50% of gross yield. It is fabricated and used mainly in Germany and the United States.
Grinding the hop pellets into powder, then compress them into short rod-shaped particles, diameter: 2-8mm, length: 15mm. Later, pack the hop in wrappages filled with inert gases such as nitrogen and carbon dioxide.
Hop hash can be classified in 90#, 75#, 45# and isomerized hop hash due to different processing method.
Hop extract is a kind of glutinous paste refined from raw hop, applying liquefied carbon dioxide, supercritical carbon dioxide or water as medium. The common types are: carbon dioxide hop extract, isomerized hop extract and hexa-hydrogen reduction hop extract.
It need to be notice that hop extract may not be proper to be used alone, but match with hop hash to add in the wort since there is no tanin in the extract. If so, the ideal condensation and precipitation of protein can be presented.
(1) Fragrant hop oil
Fragrant hop oil comprises hop oil ingredients and β-acid which is dissociated from carbon dioxide hop extract. This product has fragrance of hop without bitterness. The α-acid is removed because of intensive processing. The fragrant oil is added into light resistant beer to provide the flavor of fresh beer hop, replacing the process when hop is poured during wort boiling. Its standard content is 10%-15% (weight/volume).
(2) β-hop oil
Fragrant hop oil comprises hop oil ingredients and β-acid which is dissociated from carbon dioxide hop extract but with a touch of α-acid in it (0.3%-1.5% in general). As a result, we advise that do not make light resistant beer with this product. Its standard content is 8%-12% (weight/volume).
Post time: Nov-05-2018