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Cloning Guinness Draught is one of the most technically interesting homebrewing projects because the beer itself is relatively simple, it’s the nitrogen dispensing system that creates the characteristic cascade, creamy head, and mouthfeel that define the commercial product. I’ve brewed this clone numerous times and can walk you through both the recipe and the nitrogen serving options that make or break the result.
Guinness Draught clone recipe (5 gallon / 19L batch)
Target stats: OG 1.044, FG 1.010, ABV ~4.2%, IBU 38, SRM 35–40, opaque dark brown/black. Grain bill: 6.5 lbs (2.95 kg) Maris Otter pale malt, the British base malt gives a slightly fuller, biscuity character appropriate for Irish stout. 1.5 lbs (680g) flaked barley, essential for Guinness character; unmalted barley is what creates the distinctive dry, grainy body and contributes to head retention in nitrogen-dispensed stout. 1 lb (454g) roasted barley (unmalted, 500–550°L), the single most important flavoring grain. Roasted barley (not roasted malt/black patent) is the source of Guinness’s coffee and dark chocolate bitterness, red-tinged color, and extremely dry finish. 0.5 lb (227g) black patent malt, additional color contribution and depth. Hops: 1.5 oz East Kent Goldings (60 min), 35–38 IBU target. Guinness’s hop bitterness is assertive but not aromatic, all bittering addition, no late hopping. Yeast: White Labs WLP004 Irish Ale Yeast or Wyeast 1084 Irish Ale. These produce the characteristic slight fruitiness and dry attenuation that defines Irish stout character. Ferment at 18–20°C (64–68°F). Process: Single infusion mash at 67°C (153°F) for 60 minutes, slightly higher temperature than a session beer to build enough body to survive the drying effect of roasted barley. 60-minute boil. Ferment 10–14 days. Target FG 1.010–1.012. Nitrogen serving, the critical variable: Option 1 (best result): Use a nitrogen mixed-gas cylinder (75% N₂ / 25% CO₂, “beer gas” or “stout gas”) with a stout faucet (creamer faucet with restrictor plate). Serve at 12–14°C (54–57°F) at 30–38 psi serving pressure. This replicates pub Guinness most closely. Option 2 (homebrew approximation): Use nitrogen-charged “Nitro” cans or bottles, seal the beer in canning with a small nitrogen charge. Option 3 (simplest): Carbonate normally (2.0 volumes CO2) and use a stout faucet for partial nitrogenation effect, not the same as true nitrogen, but produces more cascading effect than a standard tap.
Common Questions
Do I need nitrogen equipment to make a Guinness clone at home?
You don’t need nitrogen to brew an excellent dry Irish stout that tastes like Guinness, but you do need nitrogen or nitro-serving equipment to replicate the cascade, creamy head, and ultra-smooth mouthfeel that are the Guinness drinking experience. The beer itself, roasted barley dryness, hop bitterness, modest alcohol, can be brewed very accurately without any special equipment. Served on CO2 through a standard tap, this recipe produces an excellent dry Irish stout. It won’t look or feel like Guinness Draught, the head will be thinner and more CO2-bubbly, and there’s no cascade effect, but the flavor profile is accurate. For the full experience: a nitrogen mixed-gas setup with a stout faucet and a kegging system is the most practical nitrogen option for homebrewers. Nitrogen cylinders are available from homebrew suppliers and gas companies, and a stout faucet is approximately $40–$60 USD. If you’re brewing this recipe specifically for the Guinness experience rather than just dry Irish stout flavor, the nitrogen setup is worth acquiring. It also serves any other nitrogen-appropriate beers (pastry stouts, creamy porters) that you may brew in future.
