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Corona Extra is one of the most straightforward adjunct lager clones to attempt because the commercial beer is deliberately simple, the challenge is achieving that specific neutrality and lightness rather than adding character. Having brewed this recipe multiple times, I can tell you what actually matters versus what doesn’t in hitting the Corona profile.
Corona Extra clone recipe (5 gallon / 19L batch)
Target stats: OG 1.046, FG 1.008, ABV ~4.9%, IBU 12, SRM 2, extremely pale straw. Grain bill: 5 lbs (2.27 kg) Pilsner malt (German or North American). 2 lbs (907g) flaked corn (maize), Corona uses corn adjunct for lightness and a slight sweetness that differs from rice adjunct. Flaked corn is pre-gelatinized and can be added directly to the mash without pre-cooking. 0.5 lb (227g) rice hulls, added for lautering efficiency with the corn-heavy grain bill; corn creates a sticky, slow-sparging mash without hull assistance. Hops: 0.35 oz Galena or Nugget (60 min), bittering only, 10–12 IBU. No late hops. Hop presence in Corona is essentially imperceptible, the commercial beer is among the least hop-forward lagers in the world. Adjunct addition: Some brewers add 0.25 lb (113g) dextrose (corn sugar) to the boil to lighten body and boost fermentability, this is optional but helps achieve Corona’s extremely light, dry finish if your efficiency is on the lower end. Yeast: Fermentis Saflager W-34/70 (dry lager yeast, widely available) or White Labs WLP940 Mexican Lager Yeast. WLP940 is specifically derived from Mexican lager tradition and produces the cleanest, most accurate result for Corona cloning. Ferment at 10°C (50°F) if using lager yeast. Water: RO or very soft water. Corona’s original source water in Nava, Coahuila is very soft. Keep sulfate under 15 ppm, calcium at 30–40 ppm, chloride at 50–60 ppm. Any mineral character will be perceptible in a beer this neutral. Process: Single infusion mash at 62°C (144°F) for 75 minutes, very low temperature maximizes fermentability for the dry finish. Alternatively, step mash: 50°C (122°F) protein rest for 15 minutes, then 62°C (144°F) for 60 minutes. 90-minute boil. Ferment 2 weeks at 10°C (50°F), lager at 1–2°C (34–35°F) for 4–6 weeks. Fine with gelatin or isinglass for brilliant clarity. Carbonate to 2.7–2.8 volumes CO2. Serve cold in a clear bottle or keg, the skunk risk from clear bottles is real (Corona’s light-struck character is part of the commercial product identity, but homebrewed Corona served fresh is better without it).
Common Questions
Why does Corona taste different than this clone recipe when served with lime?
The lime in Corona is both a flavoring addition and a partial mask for the light-struck (skunky) character that develops when Corona’s clear bottles are exposed to light. The commercial Corona you buy at a store has almost certainly developed some degree of light-struck mercaptan compounds from UV exposure through the clear glass, this has a subtle skunky note that blends with the lime to create the distinctive “Corona with lime” flavor profile that many drinkers associate with the brand. Your homebrewed clone in a dark or brown bottle, or on draft from a keg, will taste noticeably cleaner and fresher than commercial Corona. Adding a squeeze of lime to your clone brings it closer to the commercial experience, but the light-struck note will still be absent. This is actually an improvement, the fresh corn lager character of this clone without light-struck compounds is a genuinely better drinking experience than most commercial Corona. The lime is still a good addition because it brightens the very neutral profile, add a fresh wedge to your glass regardless of whether you’re trying to match the commercial product exactly.
