This Irish Red Ale all-grain recipe is designed as a complete 23 L formulation at 75% brewhouse efficiency. Confirm every measured value on your own system and package only after fermentation is complete and gravity is stable.
Irish Red Ale all-grain recipe: Quick Facts
| Field | Value |
|---|---|
| Style | BJCP 2021, 15A Irish Red Ale |
| Strength | 4.3% ABV; OG 1.044; FG 1.011 |
| Colour | 24 EBC / 12 SRM |
| Bitterness | 24 IBU |
| Batch | 23 L finished beer / 6.1 US gal / 5.1 Imp gal; formulated at 75% brewhouse efficiency |
Historical and Technical Context
Ireland has an old ale-brewing culture, but the modern red ale category is best understood as a comparatively recent interpretation of familiar British and Irish draught practice. It places less emphasis on hop expression than an English bitter and uses a small dark-grain contribution to create its copper-red colour and dry closing note. The result became a recognisable pub style because it offered a clear alternative between pale ale and stout.
Technically, the beer is built on pale malt with measured amounts of toast and caramel rather than a large crystal-malt load. Roasted barley is used almost like a seasoning: enough to deepen colour and sharpen the finish, but not enough to taste like stout. Moderate attenuation, medium-low bitterness and a clean fermentation keep the profile smooth, while a small biscuit component reinforces the grainy centre.
Examples brewed in Ireland have often favoured modest strength, dryness and subtle flavour, whereas international interpretations can be sweeter, stronger and more caramel-forward. This formulation stays near the traditional sessionable balance and avoids decorative additions. Its identity comes from grist proportion, fermentation control and restrained earthy hops, not from association with any named commercial beer.
Technical Parameters
| Parameter | Target | Acceptable Range | Notes |
|---|---|---|---|
| Colour | 24 EBC / 12 SRM | 18-28 EBC / 9-14 SRM | Clear reddish copper rather than brown or black. |
| Bitterness | 24 IBU | 18-28 IBU | Firm enough for a dry finish but secondary to malt. |
| Body | Medium-light to medium | Medium-light to medium | Smooth rather than syrupy, with moderate carbonation. |
| Alcohol Strength | 4.3% ABV | 3.8-5.0% ABV | Calculated from OG 1.044 and FG 1.011. |
| Carbonation | 2.0 volumes CO2 | 1.8-2.2 volumes CO2 | Moderate sparkle lifts the grainy finish. |
| Original Gravity | 1.044 SG | 1.036-1.046 SG | The upper-middle target gives flavour without losing drinkability. |
| Final Gravity | 1.011 SG | 1.010-1.014 SG | A lower-middle finish keeps caramel under control. |
| Apparent Attenuation | 75% | 68-77% | Healthy pitching and a 67°C / 153°F mash should reach this range. |
| Final pH | 4.20 | 4.05-4.35 | A clean ale profile should not taste tart. |
| Serving Temperature | 10°C / 50°F | 8-12°C / 46-54°F | Cool service preserves refreshment while allowing malt aroma to open. |
Sensory Profile
Visual
Bright reddish copper with ruby glints, good clarity and an off-white to pale tan head of moderate height. The foam settles evenly and fine streams of carbonation remain visible through the clear body.
Aroma
Low-to-moderate grain, fresh toast and restrained caramel are cleanly presented. A faint floral-earthy hop note and light orchard-fruit ester are acceptable, but roast should register only as a distant dry suggestion rather than coffee or chocolate.
Taste
The first sip offers lightly sweet pale malt and biscuit, followed by understated toffee. Moderate bitterness and a minute roasted-barley edge create a clean, dry finish. Esters remain low, hop flavour is supportive and no one component dominates the easy-drinking balance.
Food Pairings
| Category | Suggested Dishes | Pairing Principle |
|---|---|---|
| Meat | Glazed ham, roast pork or corned beef with cabbage | Mild caramel complements browned and cured flavours while the dry finish cuts fat. |
| Seafood | Smoked haddock fishcakes, grilled salmon or mussels | Moderate carbonation refreshes and the beer’s toast supports savoury seafood. |
| Cheese | Red Leicester, mature cheddar or nutty alpine-style cheese | Copper-malt sweetness meets the cheese’s caramelised and nutty notes. |
| Vegetarian | Colcannon, mushroom tart or roast squash with sage | Grainy malt supplies depth and restrained roast balances earthy sweetness. |
| Dessert | Apple cake, bread pudding or hazelnut biscuits | Light toffee and toast mirror baked flavours without adding excessive sweetness. |
Malts and Fermentables
| Malt or Fermentable | Quantity | Percentage | Function | Notes |
|---|---|---|---|---|
| British pale ale malt | 3.90 kg / 8.60 lb | 85.7% | Base fermentables | Provides a grainy-biscuit foundation and enzyme reserve. |
| Light Munich malt | 250 g / 8.82 oz | 5.5% | Bread depth | Adds malt richness without making the beer sweet. |
| Medium crystal malt | 250 g / 8.82 oz | 5.5% | Toffee and colour | Keep within this proportion to preserve a dry finish. |
| Amber malt | 100 g / 3.53 oz | 2.2% | Biscuit accent | Supports toast and grain complexity. |
| Roasted barley | 50 g / 1.76 oz | 1.1% | Red hue and dryness | Use as a seasoning; it must not create a stout flavour. |
Malt notes: Total grist: 4.55 kg / 10.03 lb. Percentages total 100.0%. A dehusked dark malt can replace roasted barley gram-for-gram for a softer colour contribution, although the finish will be less traditional.
Hopping Schedule
| Hop | Quantity | Time | Alpha Acids | Function | Contribution |
|---|---|---|---|---|---|
| Target | 20 g / 0.71 oz | 60 minutes | 10.0% alpha acids | Clean primary bitterness | 20 IBU |
| East Kent Goldings | 18 g / 0.63 oz | 15 minutes | 5.0% alpha acids | Earthy-floral support | 4 IBU |
Yeast, Microbiology and Adjuncts
| Component | Quantity | Function | Technical Notes |
|---|---|---|---|
| Primary yeast | 1 fresh 11 g / 0.39 oz sachet, or an equivalent 0.75 million cells per mL per °Plato pitch | Clean Irish or British ale fermentation | Choose a medium-to-high attenuation culture with low ester production. |
| Alternative yeast | About 110 mL / 3.7 US fl oz / 3.9 Imp fl oz healthy dense slurry | Slightly fruitier pub-ale profile | A low-diacetyl British culture is suitable; confirm viability and provide a maturation rest. |
| Fining and salts | 2 g / 0.07 oz calcium sulphate, 1 g / 0.04 oz calcium chloride and 2 g / 0.07 oz kettle finings | Balanced water and bright beer | Account for source water first; target roughly equal chloride and sulphate near 70-100 mg/L each. |
Detailed Procedure
01 Preparation and Milling
Preparation and Milling — Prepare 34 L / 9.0 US gal / 7.5 Imp gal of chlorine-free liquor. Apply the listed salts only after calculating existing ions. Heat 14 L / 3.7 US gal / 3.1 Imp gal to about 72°C / 162°F and reserve 20 L / 5.3 US gal / 4.4 Imp gal for sparging. Mill the 4.55 kg / 10.03 lb grist so the kernels are opened but the husks are not pulverised; weigh the roasted barley accurately on a fine scale.
02 Mashing
Mashing — Dough in to stabilise at 67°C / 153°F and hold for 60 minutes. Adjust mash pH to 5.3-5.4 at room-temperature equivalent, allowing for the small dark-grain acid contribution. Raise the mash to 76°C / 169°F for 10 minutes, then proceed promptly so the wort remains fermentable enough to reach FG 1.011.
03 Lautering and Sparging
Lautering and Sparging — Recirculate the first runnings gently, return them without disturbing the bed and begin collection at a controlled rate. Sparge at 76°C / 169°F to collect about 29 L / 7.7 US gal / 6.4 Imp gal. Stop if the final runnings reach SG 1.010 or pH 5.8; extracting more volume is less desirable than protecting the beer’s smooth finish.
04 Boil and Hopping
Boil and Hopping — Boil vigorously but controllably for 60 minutes. Add 20 g / 0.71 oz Target at the start and 18 g / 0.63 oz East Kent Goldings with 15 minutes remaining, together with kettle finings. Chill after reaching about 25 L / 6.6 US gal / 5.5 Imp gal at OG 1.044; hop utilisation must be recalculated for the measured alpha acids and actual kettle gravity.
05 Cooling and Fermentation
Cooling and Fermentation — Chill to 17°C / 63°F, oxygenate once and pitch healthy yeast. Hold at 17-18°C / 63-64°F for four days, then allow the beer to reach 20°C / 68°F so attenuation and diacetyl reduction can finish. Confirm FG near 1.011 on readings unchanged for at least three days; then condition for another three to five days and cool to 3°C / 37°F for 48 hours if clarity is desired.
06 Packaging
Packaging — Transfer with minimal oxygen only after stable gravity. For 2.0 volumes CO2 in beer that reached about 20°C / 68°F, roughly 94 g / 3.32 oz sucrose for 23 L / 6.1 US gal / 5.1 Imp gal is an estimate; calculate the exact dose for actual temperature, beer volume and any residual pressure. Condition bottles at 18-20°C / 64-68°F for two weeks and discard any package showing damage or abnormal overpressure.
Variations
- For a leaner Irish interpretation, reduce medium crystal malt to 150 g / 5.29 oz and replace the difference with pale ale malt.
- For a softer colour contribution, add the roasted barley only for the final 15 minutes of the mash, accepting slightly less roasted dryness.
- For cask-style presentation, target 1.6-1.7 volumes CO2 and serve at 11-12°C / 52-54°F.
- Replace Target with an equivalent clean British bittering hop and recalculate the mass to retain 20 IBU from the first addition.
- For a slightly toastier version, exchange 150 g / 5.29 oz of pale malt for Vienna malt without changing total grist weight.
Irish Red Ale all-grain recipe: Frequently Asked Questions
Why is the beer brown instead of red?
Red colour depends on malt colour, concentration, clarity and illumination, not just the presence of roasted barley. Check supplier EBC values, avoid excess crystal or dark malt and assess a clear sample against transmitted light. Oxidation can also turn bright copper into dull brown.
Why does it taste like a weak stout?
Too much roasted barley, a very dark lot or an overly fine crush can dominate. Keep the addition close to 1% of the grist, weigh it accurately and consider adding it late in the mash. The desired effect is a brief dry finish, not coffee or ash.
How can diacetyl be prevented?
Pitch sufficient healthy yeast, oxygenate only at pitching and allow the temperature to rise to 20°C / 68°F near the end. Hold the beer warm until gravity is stable and the buttery aroma has disappeared; cooling or packaging early traps the problem.
What if measured bitterness is lower than expected?
Confirm hop age, alpha-acid value, boil vigour and wort volume. Higher pre-boil gravity and a covered or weak boil reduce effective utilisation. Recalculate additions for the specific system rather than adding post-fermentation bitterness, which can upset the clean profile.
Sources
Explore the complete 101-recipe index to compare beer families and discover more all-grain formulations.
