Dual purpose hops for a brewpub working on a small hop budget

What dual purpose means

Hops are often sorted into bittering, aroma and dual purpose varieties. Bittering hops have high alpha acids and are added early in the boil. Aroma hops have lower alpha acids and pleasant oils, used late or in dry hopping. Dual purpose hops have enough alpha acid to bitter efficiently and enough good oil to work late as well.

For a brewpub, this matters because hops are bought in 5 kg or larger packs and each open pack has a limited life. Our guide to alpha acids explains why a high-alpha hop gives more bitterness per gram.

Varieties that pull double duty

These are widely available through Indian importers and well documented. Alpha acid ranges are typical and vary by crop year, so check the packet each time.

• Centennial (around 9 to 11%). Floral and citrus. Bitters cleanly and works well late in pale ales.
• Chinook (around 12 to 14%). Pine, grapefruit and resin. Firm bitterness and a classic American IPA aroma.
• Columbus (often 14% or more). Dank, resinous and very efficient for bittering. Good in small late doses.
• Simcoe (around 12 to 14%). Pine, passion fruit and earthy notes. Expensive, but one variety can carry a whole IPA.
• Citra (around 11 to 13%). Tropical fruit and lime. Often bought for aroma, yet it bitters well.
• Challenger (around 6.5 to 8.5%). English, spicy and fruity. Useful for bitters and porters.
• Northern Brewer (around 8 to 10%). Woody and minty. Fine in lagers, steam beers and stouts.

Building a short hop list

Start from your tap list, not from the catalogue. Write down every beer you brew regularly and the character each needs. You will usually find three groups: clean or noble character for lagers and wheat beers, citrus and pine for pale ales and IPAs, then earthy or fruity English character for darker ales.

Then pick one hop per group, with a high-alpha dual purpose variety doing as much of the bittering as possible. A workable brewpub list might be Hallertau Tradition for the lagers, Centennial and Citra for the American beers and Challenger for the English ones. Four varieties instead of nine.

Our guide to hop varieties for beginners has more options for each group.

Getting more out of each kilo

Bitterness is cheapest with high-alpha hops early in the boil. Aroma is where money goes, so make it count.

• Use a hop stand. Adding late hops in the whirlpool at around 80 °C for 20 to 30 minutes extracts oil with less loss than a flameout addition into near-boiling wort.
• Split dry hop charges. Two smaller additions often give more aroma than one large one. Smaller charges also lose less beer to hop absorption.
• Cost per IBU. Divide the price per kilo by the alpha acid percentage. A cheap low-alpha hop is often dearer per unit of bitterness than an expensive high-alpha one.

For a full method, see our guide to costing a recipe before you brew.

A worked example for one brewpub

Take a brewpub with a lager, a wheat beer, a pale ale, an IPA and a stout on tap. A typical first instinct is to stock Saaz, Hallertau Mittelfrüh, Cascade, Citra, Mosaic, Magnum, Fuggle and East Kent Goldings. That is eight open packs, several of which move slowly.

A tighter plan: Hallertau Tradition bitters and flavours the lager and the wheat beer. Centennial bitters the pale ale and IPA and goes in the whirlpool. Citra carries the late and dry hop additions in both. Challenger bitters the stout and adds a little English spice. Four varieties, each opened and finished within a few weeks.

Will the IPA be less complex? Slightly. Most drinkers will not notice. The money saved on stale hops can buy fresher hops for the beers that sell.

Keeping the stock fresh

Buy for a few months, not a year, unless the variety is a flagship. Store sealed packs in a freezer at around minus 18 °C. Once opened, squeeze out air, reseal tightly or vacuum pack in smaller portions and use within weeks.

The floor detail many brewpubs miss: check alpha acid and smell when you open each pack, not just when it arrives. A hop that smells cheesy or flat has oxidised. Use it for bittering only, where aroma matters less.

When to add a new variety

Add a variety when a beer genuinely needs it, not because a new hop is fashionable. Brew it in one beer first, then decide whether it earns a place. Knowing which hop does which job (and why) is the kind of judgement that comes from understanding hop chemistry and recipe design together.

Common questions

What is a dual purpose hop?

A hop with enough alpha acid to bitter efficiently and enough pleasant aroma oil to use late in the boil or for dry hopping.

Can I brew an IPA with one hop variety?

Yes. Varieties like Simcoe, Citra, Centennial or Chinook can handle bittering, whirlpool and dry hop additions in a single-hop IPA.

How long do opened hop packs last?

If resealed tightly and frozen, a few weeks to a couple of months. Smell each pack before use and keep stale hops for bittering only.