Mexican Lager 2018

Search for a Corona clone recipe and you’ll find snark.

I’ve searched for Corona clones and found a few, however I’ve mostly found craft beer snobs.  Previous attempts were with an ale yeast and resulted in a cream ale. This is an attempt to use those notes and the notes of others who have tried before and make changes where appropriate to make a delicious, light, slightly hoppy Mexican Lager.

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Grain Bill / Fermentables

  • 10 lbs 2-Row Pale Malt
  • 1 lbs Caramel 20
  • 4 lbs Flaked Maize

Hops

  • 1 oz Cascade (6.3 AA)
  • 1 oz Motueka
  • 1 oz Citra

Yeast

  • WLP 940 Mexican Lager
  • Danstar Nottingham

Target Stats

  • OG 1.042
  • FG 1.010
  • ABV 4.20%
  • IBU 21.56
  • SRM 3.62

Ale Final Stats

  • OG 1.042
  • FG 1.010
  • ABV 4.20%

Lager Stats

  • OG 1.042
  • FG 1.012
  • ABV 3.94%

Prior to Brew Day

Prepare yeast starter for the lager.

Brew Day (2018-03-17)

Heat 12 gallons of water to 157°.

Gently dough in grains until all grain is covered by water.

Mash grains at 152° for 1 hour.

Remove “grain bag” and allow grains to drain.

Bring wort to a boil for 15 minutes.

Add 1 oz Cascade hops and continue boil for another 20 minutes.

Add yeast nutrient and whilfloc tablet and continue boil for 10 minutes. (This is a good time to drop in the wort chiller.)

Reduce wort temperature to 150° and add 1 oz Motueka & 1 oz Citra hops and continue dropping wort temperature.

Once wort temperature reaches 68°, take OG reading and continue to reduce wort temperature to 50°.

Sufficiently aerate and transfer to primary fermenters.

Pitch yeast starter into one fermenter and dry yeast into the other.

 

Lager, rest and enjoy!

Notes:

  • Brew Day (2018-03-17)
    • Checked mash pH after 15 minutes and it was 6.39, added 3/4 tsp citric acid and dropped the pH to 5.1
    • Final mash temp wash 150 after stirring the mash twice over the duration of the mash.
    • Total mash time was just over one hour.
Ale Yeast
  • Pitched Nottingham yeast into 5 gallons of 68° wort. Did not rehydrate yeast.
    • Fermentation chamber is currently 63°.
  • 18 hours, minor amount of pressure in the airlock. No visible signs of activity, which is not uncommon for Nottingham.
  • 24 hours, a small krausen has formed. 🙂
  • 40 hours, the krausen is now ~1/2 inch thick and pea green in color.
  • 3 days
  • 4 days, krausen has completely dropped out. Removed carboy for heat sink and raised fermentation chamber temperature to 72° to complete attenuation.
  • 1 week, we’ve reached 1.010 FG! Has a delicious, light flowery hop flavor with a hint of ale esters compared to the lager. More taste comparisons will be required. 🙂
  • 11 days, transferred into brew pot with 2.5 gallons of 34.5° water. Added gelatin finings once the temperature stabilized at 48° and dropped the temperature to 40° overnight.
  • 13 days (2018-03-30), bottled brew. ?
Lager Yeast
  • Pitched Mexican Lager yeast into 5 gallons of 53° wort. The temperature would not drop any further, even after pre-chilling the water entering the immersion chiller.
    • Carboy was put into heat sink water bath that was cooled to 50°.
    • Fermentation chamber is set to 52° with acceptable range of 50° to 53°. (hd 2°, cd 1°)
  • 18 hours, lots of airlock activity and small 1/8″ krausen has formed. Heat sink temperature has increased from 50° to 52.1° overnight from yeast activity.
  • 48 hours
  • 5 days, krausen has started dropping out. Raised fermentation chamber temperature 5° to 57° and will continue to raise temperature by 5° every 12 hours until reaching 68° for a diacetyl rest.  (With an OG this low, I would raise the temperature at day 4 on the next brew.)
  • 1 week, FG is 1.012 and has a delicious, clean, light flowery hop flavor.
  • 8 days, started dropping temperature to 50° and will fine with gelatin once desired temperature is achieved.
  • 9 days, added gelatin finings at 46.5° and set fermentation chamber temperature to 33°.
  • 11 days, transferred to keg to lager after beer cleared for two days at 34.5°.
  • 25 days (2018-04-11), bottled the lager.