Origin and Description

Riwaka Hops, otherwise known as D Saaz, came from the same breeding program as Motueka from the Hop Research Centre at HortResearch in Riwaka New Zealand. 1997 marked the year of this hops variety's release and Riwaka has not exactly taken the world by storm, it is seen as a quality hop with some very good attributes. As it should, being a cross between the prided Czechoslovakian Saaz and a New Zealand variety. Like Motueka, Riwaka is another triploid hops variety, common from the breeding program.

Riwaka Hops is an aroma variety with an alpha acid rating of 4.5% to 6.5% and a favorably low alpha to beta acid ratio. This variety has a high level of co-humulone which is not desired by some brewers. With a high total oil concentration, the myrcene oil content dominates the other oils with a whopping 68%. This definitely helps provide the citrus notes, include tones of grapefruit. Riwaka Hops is appropriate from beginning of boil to dry hopping in beer batches, Myrcene breaks down with heat, so for greater aromatic potency delay your temptation to throw this New Zealand hops variety in the kettle.

Riwaka Hops lives in a disease free environment in New Zealand. Its tolerance and susceptibility to disease and fungus is unknown at this time. Riwaka has a moderate growth habit that results in loose cones early in the season. Loose hop cones are more difficult to harvest if not picked at the right time due to drying and flaking of the cones. Saaz or Motueka will make a good substitute if you cannot find this variety on the market.


Riwaka Hops Usage


Riwaka hops is aromatic qualities.
Riwaka hops is commonly used as as aroma agent in beer.

Riwaka Hops Characteristics


Below is a list of characteristics for riwaka hops that impact farming, chemistry, transport & trade, beer production, as well as the final character of the finished product.

Riwaka Hops Acid Composition

Alpha Acid Composition 4.5%-6.5%Riwaka Hops Alpha Acid Composition - 4.5 To 6.5 Percent
Beta Acid Composition 4%-5%Riwaka Hops Beta Acid Composition - 4 To 5 Percent
Co-Humulone Composition 36%-36%Riwaka Hops Co-Humulone Acid Composition - 36 To 36 Percent

Riwaka Hops Cone Physical Characteristics


Riwaka Lupulin ColorYellowYellow Lupulin Color for Riwaka Hops
Riwaka Cone SizeMediumRiwaka Hop - Medium Cone Size
Riwaka Cone DensityLooseRiwaka Hops - Loose Cone Density

Riwaka Hops Growth, Harvest, and Storage Details


MaturityEarly SeasonRiwaka Hops - Early Season Maturity
YieldYield for Riwaka Hops is Low at 1200 - 1500 kg/hectare
Riwaka Hops - Low Crop Yields
Growth RateModerate
Riwaka Hops - Moderate Growth Rate
Susceptibility to Disease and PestsRiwaka Hops Resistance to Disease & Pests is Moderate
StorabilityRiwaka Hops maintains 60%-70% alpha acid comtents after 6 months storage at 20 degrees CRiwaka Hops Storability - Moderate
Ease of HarvestPoor to GoodRiwaka Hops - Poor to Good Pickability

Riwaka Hops Oil Composition


Total Oil Composition1.5-1.5 mls/100 gramsRiwaka Hops - Total Oil Compensation 1.5-1.5 mls
Myrcene Oil Composition68%-68%Riwaka Hops - Myrcene Oil Compensation 68-68 Percent
Humulene Oil Composition9%-9%Riwaka Hops - Humulene Oil Compensation 9-9 Percent
Caryophyllene Oil Composition4%-4%Riwaka Hops - Caryophyllene Oil Compensation 4-4 Percent.jpg
Farnesene Oil Composition1%-1%Riwaka Hops -Farnesene Oil Compensation 1-1 Percent

Riwaka Hops Substitutes


VarietyDescription
MotuekaMotueka Hops is another name B Saaz, and was bred in New Zealand using 1/3 Saaz and 2/3 New Zealand variety. It is a t...
SaazSaaz Hops has changed the world of brewing forever, as it is an esteemed and honored variety that helped to define European Lagers and Bohemian Pilsners. It is...

Common Beer Styles for Riwaka Hops


    Beer Style
    Stout
    Pale Ale
    American Amber Ale
    Pilsner

    Riwaka Hops Use in Commercial Beers


    WebsiteBrewing Company & Beer or Product
    Emerson's Brewery
    May Day Stout
    Kelham Island Brewery
    Chameleon
    666 Brewing Company
    Roulette