Willamette hops and their Fuggle heritage in American ales

A Fuggle in American clothes

Willamette is a seedling of the English hop Fuggle. It was bred in Oregon in the 1970s, named after the Willamette Valley where much of the American crop is grown. It was released as a more productive replacement for Fuggle in American fields. It has become one of the most widely planted aroma hops in the United States. Our American hops guide places it among the others.

Alpha acid usually runs from about 4 to 6%. Flavour is mild and rounded: earth, wood, a floral note, a little spice and soft red fruit. It is less minty than Fuggle and more consistent. For a homebrewer that is the point. You get a hop with a familiar English feel and a steady supply.

Where it belongs

Willamette suits malt-forward beers where hop aroma should stay polite:

• American amber and red ales.
• ESBs and other bitters, as a Fuggle stand-in.
• Porters and brown ales, as a late aroma hop.
• Cream ales and Belgian-style ales that want a quiet floral note.

It is a poor choice for a hazy IPA, where you want loud fruit. For that, compare it with a modern variety like Jester, which gives an English-bred pale ale a grapefruit edge. Our English hops guide shows the Fuggle side of the family.

A 20 litre American amber ale

Aim for OG 1.048 and FG 1.012, which gives about 4.7% ABV from (1.048 - 1.012) x 131.25. Use around 30 IBU.

• Pale ale malt 3.6 kg (about 86%).
• Crystal malt at 60 EBC, 0.4 kg (about 9%).
• Light Munich malt 0.2 kg (about 5%).

Mash at 66 to 67 °C for 60 minutes. Ferment with a clean American ale yeast at 18 to 19 °C.

For the hops, with Willamette at 5% alpha:

• 60 minutes, 25 IBU: 25 x 20 / 0.25 = 2,000 mg of alpha acid. At 5% alpha that is 40 g of hops. Here 0.25 is a typical home utilisation.
• 15 minutes, 5 IBU at about 12% utilisation: about 17 g.
• Flameout: 20 g, steeped for 15 minutes.

The floor detail: read the alpha, redo the sum

Alpha acid is a range, not a fixed number. A pack of Willamette from one harvest may read 4.2% and the next 6.1%. Brew the second pack on the first pack's weights and your bitterness changes by nearly half. The pack label or the supplier sheet gives the figure for that harvest. Write it on the brew sheet and recalculate each time.

Storage matters just as much. Warm shelves cut alpha and flatten aroma. A pack that spent a few weeks in a hot Indian warehouse is not the pack the grower weighed. Keep hops in the freezer in sealed foil and open one pack at a time. Our guide to hop storage and freshness goes through the numbers.

Dry hopping and late hops

Willamette is gentle enough that a dry hop of 1 to 2 g per litre is plenty for an amber ale, or about 20 to 40 g in this batch, for three days. More tends to turn the soft earthiness into hay and grass. For a porter, skip the dry hop. Late kettle hops are enough.

If you do dry hop, rack off the hops and keep air out. Willamette's quiet aroma shows oxidation quickly.

Swapping hops in and out

If Willamette is out of stock, Fuggle is the closest. East Kent Goldings gives a more honeyed version. Bramling Cross pushes the beer towards blackcurrant. Scale substitutes by alpha acid, not by weight, or your bitterness will drift. Rub a few pellets from each pack between your fingers and smell them. Trust your nose as well as the label. A pack that smells of cheese or damp hay is past its best, whatever the date says.

Learning to design with a hop's heritage

Knowing that Willamette descends from Fuggle explains why it behaves the way it does. Knowing why it behaves that way, in terms of oils, alpha acids and utilisation, lets you predict a hop you have never brewed with. That is the move from following a recipe to designing one. It is the skill a structured course builds in weeks, where trial and error can take years.

Common questions

Is Willamette the same as Fuggle?

No. It is a seedling of Fuggle bred in Oregon and has similar earthy, floral and woody notes. It is generally less minty and more consistent in supply.

What alpha acid does Willamette have?

Usually about 4 to 6%. Use the figure on the pack, because it varies with the harvest.

What can I use instead of Willamette?

Fuggle is closest. East Kent Goldings gives a more honeyed note and Styrian Golding is another gentle option. Adjust the weight for alpha acid.