Toyomidori Hops

BitteringAlpha 11.0 - 13.0%Japan

Genetics & family tree

Curated parent and offspring links for Toyomidori. View Toyomidori family tree & lineage chart → Recipe swaps are on the Hop Substitutor.

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Toyomidori is a vintage high-alpha variety from Japan, released in 1990 by the Kirin Brewery Hop Research Farm. Bred in 1981, it was developed as a robust cross between the legendary Northern Brewer and a wild American male (USDA 64103M). Toyomidori was engineered to be the heavy-hitting bittering foundation for Japan’s iconic crisp lagers, providing high-efficiency alpha acids for large-scale production.

While its commercial cultivation in Japan eventually declined due to a high sensitivity to downy mildew, Toyomidori’s DNA lives on in the modern "juice" revolution. It is the direct genetic parent of the tropical powerhouse Azacca™, proving that even a "workhorse" bittering hop can pass on incredible aromatic potential to the next generation. For brewers, it represents a classic era of Japanese hop science that paved the way for the modern craft movement.

Looking for an alternative?

Run Toyomidori through our Hop Substitutor to find chemical and flavor matches ranked for your brewing goal.

Substitution Tip

If you can't find Toyomidori, the best alternatives are Azacca™, Chinook, Galena, or Northern Brewer.

Match scores use aroma/flavor charts and chemistry — estimates only.

At A Glance

ProfileGreen Tea, Tobacco, Dried Herbs, Resinous
PurposeBittering
Alpha Acid11.0 - 13.0%
SubstitutesAzacca™, Chinook, Galena, Northern Brewer
Pairs withAzacca™ (to bridge its heritage with modern tropical fruit notes), Northern Brewer (to amplify the woody/spicy character), Saaz (for a traditional crisp lager finish)
Beer StylesJapanese Lager, American Pale Ale

General Information

Country
Japan
Aliases
Kirin Flower, Feng Lv, USDA 21676
Storage Stability
Retains 63% alpha acid.

Brewing Chemistry (Acids & Oils)

Alpha Acid
11.0 - 13.0%
Beta Acid
5.0 - 6.0%
Cohumulone
38.0 - 42.0%
Total Oil
0.6 - 1.5 ml/100g
Myrcene
56.0 - 60.0%
Humulene
9.0 - 12.0%
Caryophyllene
4.0 - 5.0%
Farnesene
0.1 - 0.4%

Growth & Cultivation

Yield
940 - 1,100 lbs/acre
Maturity
Mid-to-late season
Tolerant
Verticillium Wilt
Susceptible
Downy mildew (moderate)
Growth Rate
High
Cones
Large and heavy
Ease of Harvest
Good; robust bines and dense cones
Sex
Female
Leaf Color
Dark green
Side Arm Length
24 - 36 inches

Discovery Tags

Origin

Last Updated
  • 2026-03-04 02:00:01