Progress hops in English bitters and dark milds

A Fuggle stand-in with its own accent

Progress was bred at Wye College in Kent and released in the mid 1960s. English growers needed a hop that tolerated verticillium wilt, which was destroying Fuggle gardens. Progress was meant to give brewers a Fuggle-style hop that farmers could keep growing.

It came out a little different. Alpha acid is usually 5 to 7.5%, slightly higher than Fuggle. The aroma is softer and sweeter, with grass, mint and a light floral earthiness. Most brewers who use both say Progress is the gentler of the two.

Why low bitterness beers need a gentle hop

Dark mild is one of the lowest bitterness styles in British brewing. A typical one sits at OG 1.030 to 1.038, around 3 to 3.8% ABV and only about 10 to 25 IBU. Ordinary bitter runs a little higher, often 25 to 35 IBU at 3.2 to 3.8% ABV.

At those levels every hop note is exposed. There is little alcohol and modest malt to hide behind. A pungent hop like Target can make a mild taste harsh. Progress keeps the bitterness rounded and lets the malt, caramel and gentle roast do the talking.

Dosing it for a 20 litre batch

For a 20 litre dark mild at 18 IBU, with one 60 minute addition at about 25% utilisation and Progress at 6% alpha:

grams = 18 x 20 / (0.06 x 0.25 x 1,000) = 24 g.

Add another 10 to 15 g at 10 minutes if you want a hint of aroma. Many traditional milds skip the late hop entirely. For an ordinary bitter at 30 IBU, the bittering charge rises to about 40 g, with 20 to 30 g at flameout for a soft grassy aroma.

A dark mild recipe that lets it speak

Here is a 20 litre dark mild at about OG 1.036:

• Mild or pale ale malt 2.7 kg (84%).
• Crystal malt around 150 EBC 0.26 kg (8%).
• Chocolate malt 0.16 kg (5%).
• Black malt 0.10 kg (3%).
• Progress 24 g at 60 minutes for about 18 IBU.

Mash at 67 to 68 °C for more body, since a low gravity beer can taste watery. Ferment with an English ale yeast at 18 to 20 °C. Serve with low carbonation. A mild that fizzes like a lager loses its charm.

The floor detail: mash temperature does more than the hop

In a beer this small, a two degree change in mash temperature changes the result more than swapping Progress for Fuggle. Mash at 64 °C and the yeast eats more sugar, leaving a thin, dry mild. Mash at 68 °C and you keep more unfermentable dextrins, which give body. Get that right first. Then the hop choice becomes the finishing touch it should be.

The same goes for water. A pale bitter wants low carbonate water. A dark mild handles some carbonate hardness, which balances the acidity of the roasted malts.

Swaps and pairings

Fuggle is the obvious swap, with a slightly earthier, woodier result. Goldings work too and lean more floral. In a bitter, Progress pairs well with Challenger for bittering and Goldings late, giving a classic English profile. For a Belgian-leaning twist, Bobek offers a similar gentle character from Slovenia.

Progress is a small crop and not always stocked by Indian homebrew shops. Keep whatever you buy sealed in the freezer and use it within a year.

Serving a mild or bitter at home

English session beers were built for cask service at cellar temperature, around 11 to 13 °C, with gentle carbonation. Bottled at home, aim for about 1.5 to 2.0 volumes of CO2. For a 20 litre batch that usually means roughly 50 to 90 g of table sugar as priming, depending on how warm the beer was at the end of fermentation. Use a priming calculator rather than guessing.

Serve it cool, not ice cold. Straight from a fridge at 4 °C, a dark mild tastes thin and Progress's soft aroma disappears. Let the glass sit for ten minutes. In an Indian summer that happens fast, which for once works in your favour.

Why low gravity beers are the hardest to brew well

Brewers often say a mild or an ordinary bitter is harder than a big IPA. There is nowhere to hide a fault. A slightly high fermentation temperature gives fruity esters that a 3.5% beer cannot mask. A little oxygen pickup goes stale fast. Getting these beers right means understanding yeast, mash chemistry and staling as well as hops.

Common questions

What is the difference between Progress and Fuggle?

Progress was bred as a wilt tolerant alternative to Fuggle. It has slightly higher alpha acid and a softer, sweeter, more minty aroma.

How many IBUs should a dark mild have?

Most dark milds sit between about 10 and 25 IBU. The aim is gentle bitterness that lets the malt lead.

Can I use Progress for aroma?

Yes. Late additions give a soft grassy and minty note. It is subtle, so it suits low gravity English beers rather than hop-forward pale ales.