Hops: from vine to brewing material History of Hop Breeding in New - - PowerPoint PPT Presentation

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Feb 01, 2023 325 likes •402 views

Hops: from vine to brewing material History of Hop Breeding in New Zealand Introduced to NZ >150 years ago Latitude sensitive NZ Breeding programme commenced 1950s Disease resistance Seedless Unique flavours and aromas

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Hops: from vine to brewing material

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Introduced to NZ >150 years ago
Latitude sensitive
NZ Breeding programme commenced 1950’s
Disease resistance
Seedless
Unique flavours and aromas

History of Hop Breeding in New Zealand

SLIDE 3

» Found in

Central Asia
Central Europe
North America

» Dioecious » Climbing vine (annual) » Perennial (rhizome) » Day length sensitive » Contains resin glands called lupulin » High in secondary metabolites e.g. Alpha acids, essential oils, polyphenols

Hops (Humulus lupulus)

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Hop types

Alpha type hops

high in @ acids ~12% >
Used as a bittering hop in
brewing. Added at the

beginning of a brew Aroma type hops

low in @ acids 1-11%
Used as an aroma and

flavouring agent usually at the end of the boil

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New Zealand-bred seedless hop cultivars

Cultivar name Year released Breeding history Green Bullet 1972 Smoothcone Sticklebract 1972 First Choice Dr Rudi 1976 Smoothcone Rakau 1983 Smoothcone Pacific Gem 1987 Smoothcone Wakatu 1988 Hallertauer Mittelfrueh Pacifica 1994 Hallertauer Mittelfrueh Southern Cross 1994 Smoothcone Motueka 1997 Saazer Riwaka 1997 Saazer Nelson Sauvin 2000 Smoothcone Pacific Sunrise 2004 Smoothcone Pacific Jade 2004 First Choice/Saazer Wai-iti 2011 Hallertauer Mittelfrüeh Kohatu 2011 Hallertauer Mittelfrüeh Waimea 2012 First Choice/Saazer

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Hop cone aromas

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Descriptors used to characterise hop cones

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Citrus

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Tropical

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Fruity (other)

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Dried fruit/raisins

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Grassy/fresh green

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Onion/garlic

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Hay

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Piney/woody

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Floral

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Baking spices

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Savoury spices

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Sweaty

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Biscuit

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Flavour profiles of two NZ hop

0.00 1.00 2.00 3.00 4.00 5.00 Citrus Tropical Fruity (other) Dried fruit/ raisins Grassy/ fresh green Onion/ garlic Hay Piney/ woody/ R esinous Floral Baking spices Savoury spices Sweaty Biscuit

New hop profile

0.00 1.00 2.00 3.00 4.00 5.00 Citrus Tropical Fruity (other) Dried fruit/ raisins Grassy/ fresh green Onion/ garlic Hay Piney/ woody Floral Baking spices Savoury spices Sweaty Biscuit

Typical profile Nelson Sauvin