ArkeFest

This is the sweet spot. By leaning on roughly 3% Victory malt, you are effectively "cheating" the Maillard reactions of a traditional German decoction mash. You get that beautiful, warm, toasty bread-crust complexity without adding the extra three hours of labor to your brew day.

Here is a comprehensive 5-gallon all-grain recipe designed to hit those tight Festbier parameters, built around a foundational German lager water profile and mash schedule.

Target Stats (5 Gallons @ 75% Efficiency)

| Metric | Target | Notes |
| --- | --- | --- |
| OG | 1.056 | Firm malt backbone. |
| FG | 1.011 | Highly attenuated and crisp. |
| ABV | 5.9% | Right in the traditional pocket. |
| IBUs | 22 | Balanced to let the malt shine. |
| SRM | ~5.5 | Brilliant, deep gold. |

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The Water Profile: Soft and Malt-Forward

Water chemistry makes or breaks a pale German lager. You want a profile that is relatively soft, with the chloride slightly outweighing the sulfate to accentuate the round, bready malt character while keeping the hop bitterness incredibly smooth.

For the best results, start with 100% Reverse Osmosis (RO) or distilled water and build your profile using Calcium Chloride and Calcium Sulfate (Gypsum).

• Calcium (Ca): 50 - 60 ppm (Crucial for yeast health and dropping the beer clear).
  
• Magnesium (Mg): 0 - 5 ppm (Keep this low; the malt provides enough for yeast health).
  
• Sodium (Na): 0 - 10 ppm (Keep minimal so it doesn't clash).
  
• Chloride (Cl): 60 - 75 ppm (Drives the soft, doughy malt flavor).
  
• Sulfate (SO4): 30 - 40 ppm (Keeps the noble hops crisp but prevents harsh, lingering bitterness).
  
• Bicarbonate (HCO3): 0 - 20 ppm (Because this is a very pale grain bill, you need low alkalinity to hit your target mash pH of 5.2 to 5.4. You may need a splash of lactic acid to drop the pH into this range).
  
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  The Grist (10.9 lbs Total)
  

  
  This blend keeps the beer decidedly golden while the Victory malt does the heavy lifting for the "decoction" character.
  
  

• 6.5 lbs (60%) German Pilsner Malt: The clean, grassy, grainy canvas.
  
• 2.5 lbs (23%) German Vienna Malt: Adds a lighter, elegant toastiness.
  
• 1.5 lbs (14%) German Light Munich Malt: Brings the deeper bready, doughy depth.
  
• 0.4 lbs (3%) Victory Malt: The secret weapon. It imparts a distinctly nutty, baked-biscuit flavor that mimics a decocted malt.
  
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  The Mash Timeline: The "Hochkurz" Method
  

  
  While you can do a single-infusion mash at 150°F for 60 minutes, the ultimate way to brew a Festbier (without decocting) is a German "Hochkurz" step mash. This method separates the saccharification process to give you a highly fermentable wort (for that crisp 1.011 FG) while retaining excellent head retention and mouthfeel.
  
  

  1. Maltose Rest (144°F - 146°F): Mash in and hold for 40 minutes. This beta-amylase rest creates highly fermentable sugars, ensuring the beer doesn't finish heavy or sweet.
     
  2. Dextrinification Rest (158°F - 160°F): Raise the temperature (via direct heat, an infusion of boiling water, or a HERMS/RIMS system) and hold for 20 minutes. This alpha-amylase rest builds body, mouthfeel, and foam stability.
     
  3. Mash Out (168°F): Raise the temperature and hold for 10 minutes to halt enzymatic activity and fluidize the sugar for easier sparging.
     
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     The Boil and Hops (90 Minutes)
     

     
     Because you are using 60% Pilsner malt, a 90-minute, vigorous, rolling boil is mandatory to drive off DMS (the compound that tastes like cooked corn).
     
     

• @ 60 Minutes: 1 oz Hallertau Mittelfrüh (approx. 4.5% AA) for ~18 IBUs.
  
• @ 15 Minutes: 0.5 oz Hallertau Mittelfrüh for ~4 IBUs.
  
• @ 15 Minutes: Add 1 tablet of Whirlfloc or Irish Moss (crucial for brilliant clarity).
  
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  Fermentation and Lagering
  

  
  

• Yeast: 2 sachets of Fermentis SafLager W-34/70 (or a massive starter of White Labs WLP830).
  
• The Pitch: Chill the wort down to 48°F before pitching the yeast.
  
• Primary: Let it ferment at 50°F for about 7 to 10 days.
  
• Diacetyl Rest: When the gravity drops to roughly 1.020 (about 75% of the way to your target FG), turn off the cooling and let the beer free-rise to 65°F to 68°F. Hold it there for 3 to 5 days to let the yeast clean up any buttery off-flavors.
  
• Cold Crash & Lager: Drop the temperature by 2°F to 3°F per day until you hit 33°F. Lager the beer at this temperature for 4 to 6 weeks.
  
  Would you like me to detail the exact salt additions (gypsum and calcium chloride) needed to build that water profile starting from pure distilled water?