Piwo Grodziskie/Gratzer - Beer Recipe - Brewer's Friend

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Piwo Grodziskie/Gratzer

Created: Wednesday July 19th 2023
101 calories 9.2 g 12 oz
Beer Stats
Method: All Grain
Style: Piwo Grodziskie
Boil Time: 60 min
Batch Size: 5.5 gallons (fermentor volume)
Pre Boil Size: 6.4 gallons
Post Boil Size: 5.62 gallons
Pre Boil Gravity: 1.028 (recipe based estimate)
Post Boil Gravity: 1.031 (recipe based estimate)
Efficiency: 75% (brew house)
Source: John Rosnow
Calories: 101 calories (Per 12oz)
Carbs: 9.2 g (Per 12oz)
1.031
1.006
3.4%
19.1
3.5
5.7
9.28
 
Fermentables
Amount Fermentable Cost PPG °L Bill %
6.24 lb Smoked Malt6.24 lb Smoked Malt 37 3 100%
6.24 lbs / 0.00
 
Hops
Amount Variety Cost Type AA Use Time IBU Bill %
1 oz Homegrown1 oz Homegrown Hops 0.00 / oz
0.00
Leaf/Whole 4.5 Boil 60 min 17.28 66.7%
0.25 oz Saaz0.25 oz Saaz Hops Pellet 3.2 Boil 15 min 1.68 16.7%
0.25 oz Saaz0.25 oz Saaz Hops Pellet 3.2 Boil 1 min 0.15 16.7%
1.50 oz / 0.00
 
Other Ingredients
Amount Name Cost Type Use Time
1 tsp Irish Moss Fining Boil 15 min.
1.50 lb Rice Hulls 2.99 / lb
4.49
Water Agt Mash 0 min.
4.49
 
Yeast
Fermentis - Safale - German Ale Yeast K-97
Amount:
1 Each
Cost:
4.79 / each
4.79
Attenuation (avg):
81%
Flocculation:
High
Optimum Temp:
54 - 77 °F
Starter:
Yes
Fermentation Temp:
66.9 °F
Pitch Rate:
1.0 (M cells / ml / ° P) 162 B cells required
4.79 Yeast Pitch Rate and Starter Calculator
Priming
CO2 Level: 2.35 Volumes
 
Target Water Profile
Balanced Profile
Ca+2 Mg+2 Na+ Cl- SO4-2 HCO3-
80 5 25 75 80 100
Use oak-smoked wheat instead of beechwood smoked.

Rice Hulls:
Add 1lb for every 5 lbs of malt to help with heat distribution.
Mash Chemistry and Brewing Water Calculator
 
Mash Guidelines
Amount Description Type Start Temp Target Temp Time
13 qt Strike 156 °F 153 °F 60 min
13.79 qt Sparge 169 °F 169 °F 15 min
Starting Mash Thickness: 1.44 qt/lb
Starting Grain Temp: 70 °F
Quick Water Requirements
Water Gallons  Quarts
Strike water volume at mash thickness of 1.44 qt/lb 2.25 9  
Mash volume with grains 2.75 11  
Grain absorption losses -0.78 -3.1  
Remaining sparge water volume (equipment estimates 5.84 g | 23.4 qt) 5.18 20.7  
Mash Lauter Tun losses -0.25 -1  
Pre boil volume (equipment estimates 7.06 g | 28.2 qt) 6.4 25.6  
Boil off losses -1.5 -6  
Hops absorption losses (first wort, boil, aroma) -0.06 -0.2  
Post boil Volume (equipment estimates 5.5 g | 22 qt) 5.62 22.5  
WARNING: Exceeded batch size - reduce boil size    
Going into fermentor (equipment estimates 5.62 g | 22.5 qt) 5.5 22  
Total: 7.43 29.7
Equipment Profile Used: System Default

Batch Performance
Efficiency:
Conversion: 51.8%
Pre-Boil: 66% 24.3 ppg
Ending Kettle: 65% 23.9 ppg
Brew House: 59% 22 ppg
Wort Volume:
20 Liters
  • Expected 20.8 Liters of fermentable wort.
  • Adjust your equipment profile and calibrate your equipment to dial this in.
  • Expected OG: 1.031
  • Actual OG: 1.026
Alcohol and Attenuation:
ABV: 2.36%
  • Apparent Attenuation: 69.2%
  • Actual FG: 1.008
  • Calories per 12oz 101 calories
  • Carbohydrates per 12oz 9.2 g
Amount Packaged:
20 Liters
Great job! You get to enjoy the equivalent of:
  • 12oz bottles: 56
  • 1/2L bottles: 40
  • Pints: 42
Latest Brew Log
Date Days Event Gravity Volume pH Temp Updated Comment
7/19/2023 10:15 PM
about 1 year ago
-1 Mash Complete 1.023 19 Liters 70 °F 7/20/2023 5:13 AM
about 1 year ago
7/19/2023 11:00 PM
about 1 year ago
-1 Pre-Boil Gravity 1.023 25 Liters 70 °F 7/20/2023 5:15 AM
about 1 year ago
7/20/2023 2:40 AM
about 1 year ago
+0 Boil Complete 1.026 21.75 Liters 70 °F 7/20/2023 5:15 AM
about 1 year ago
7/20/2023 5:19 AM
about 1 year ago
+0 Brew Day Complete 1.026 20 Liters 70 °F 7/20/2023 5:19 AM
about 1 year ago
Looked like 20.75 liters in the Fast Ferment. That may be a bit generous based on the amount of liquid left in the RoboBrew. I had 62 ounces which means I should have had about 20 liters. 21.75 - 62 ounces/1.8 liters.
7/25/2023 1:30 AM
about 1 year ago
+5 Fermentation Complete 1.008 20 Liters 70 °F 8/2/2023 2:59 AM
about 1 year ago
Checking the RAPT Pill, it looks like this is done fermenting.
8/4/2023 11:20 PM
about 1 year ago
+15 Packaged 1.008 20 Liters 70 °F 8/5/2023 1:28 AM
about 1 year ago
4 August 2023, 1800 – kegged from the primary and put in refrigerator to cold crash. I emptied the yeast ball which looked only half full of yeast so I did not draw anything else out before transfer. I hit the keg with some CO2 to bleed off the air on the top. It is light yellow and cloudy. Final gravity is 1.008 at 70 degrees according to the new hydrometer. The RAPT Pill was 1.007.680. Using 1.008 this gives it a potential alcohol of 0.7. Taste is good, slight smokiness and the color is light yellow and a bit cloudy.
8/8/2023 2:23 AM
about 1 year ago
+19 Tasting Note   8/8/2023 2:23 AM
about 1 year ago
7 August 2023, 1955 – took off 30 PSI and set back down to 8. Poured a beer and is great light yellow color and still a bit cloudy. Carbonation is good. Very light, but very flavorful. Smoke and wheat are subtle. No banana and clove like a hefeweizen. Very clean.
 
Notes

I found this recipe on Brewer's Friend and the notes are from that recipe. I could not get Magnesium Chloride at Midwest Supplies, so I am opting not to use any water modifications rather than just leaving one out. The malt I got was a smoked wheat malt from Weyermann and according to the label at Midwest, is designed for this beer. I am also using Safale K97 German Ale yeast and 1.5 pounds of rice hulls. I could have got by with less as it was like sparging through pea gravel. I used 1 ounce of homegrown hops at around 4.5 AA rather than 1.5 ounce at 3.75 AA. IBUs went from 22.17 to 19.27. Saaz were 3.2 AA vs 3.5 and that dropped the IBUs from 19.27 to 19.1.

Overall Impression:
A low-gravity, highly-carbonated, light-bodied ale combining an oak-smoked flavor with a clean hop bitterness. Highly sessionable.

Aroma:
Low to moderate oak wood smoke is the most prominent aroma component, but can be subtle and hard to detect. A low spicy, herbal, or floral hop aroma is typically present, and should be lower than or equal to the smoke in intensity. Hints of grainy wheat are also detected in the best examples. The aroma is otherwise clean, although light pome fruit esters (especially ripe red apple or pear) are welcome. No acidity. Slight water-derived sulfury notes may be present.

Appearance:
Pale yellow to medium gold in color with excellent clarity. A tall, billowy, white, tightly-knit head with excellent retention is distinctive. Murkiness is a fault.

Flavor:
Moderately-low to medium oak smoke flavor up front which carries into the finish; the smoke can be stronger in flavor than in aroma. The smoke character is gentle, should not be acrid, and can lend an impression of sweetness. A moderate to strong bitterness is readily evident which lingers through the finish. The overall balance is toward bitterness. Low but perceptible spicy, herbal, or floral hop flavor. Low grainy wheat character in the background. Light pome fruit esters (red apple or pear) may be present. Dry, crisp finish. No sourness.

Mouthfeel:
Light in body, with a crisp and dry finish. Carbonation is quite high and can add a slight carbonic bite or prickly sensation. No noticeable alcohol warmth.

Comments:
Pronounced in English as “pivo grow-JEES-kee-uh” (meaning: Grodzisk beer). Known as Grätzer (pronounced “GRATE-sir”) in German-speaking countries, and in some beer literature. Traditionally made using a multi-step mash, a long boil (~2 hours), and multiple strains of ale yeast. The beer is never filtered but Isinglass is used to clarify before bottle conditioning. Traditionally served in tall conical glassware to accommodate the vigorous foam stand.

History:
Developed as a unique style centuries ago in the Polish city of Grodzisk (known as Grätz when ruled by Prussia and Germany). Its fame and popularity rapidly extended to other parts of the world in the late 19th and early 20th century. Regular commercial production declined after WWII and ceased altogether in the early-mid 1990s. This style description describes the traditional version during its period of greatest popularity.

Characteristic Ingredients:
Grain bill usually consists entirely of oak-smoked wheat malt. Oak-smoked wheat malt has a different (and less intense) smoke character than German beechwood-smoked barley malt; it has a drier, crisper, leaner quality – a bacon/ham smoke flavor is inappropriate. Saazer-type hops (Polish, Czech or German), moderate hardness sulfate water, and a relatively clean and attenuative continental ale yeast fermented at moderate ale temperatures are traditional. German hefeweizen yeast or other strains with a phenol or strong ester character are inappropriate.

Style Comparison:
Similar in strength to a Berliner Weisse, but never sour. Has a smoked character but that character is less intense than in a Rauchbier.

Vital Statistics:
OG: 1.028 – 1.032
FG: 1.006 – 1.012
IBUs: 20 – 35
SRM: 3 – 6
ABV: 2.5 – 3.3%

Tags:
session-strength, pale-color, top-fermented, central-Europe, historical-style, wheat-beer-family, bitter, smoke

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  • Last Updated: 2025-04-25 15:49 UTC
  • Snapshot Created: 2023-07-19 17:18 UTC