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Mayfly

Method: All Grain
Style: British Golden Ale
Boil Time: 60 min
Batch Size: 23 liters (fermentor volume)
Pre Boil Size: 27.25 liters
Post Boil Size: 23.9617 liters
Post Boil Gravity: 1.040 (recipe based estimate)
Efficiency: 78% (brew house)
Source: Slater
Calories: 189 calories (Per .5L)
Carbs: 17.6 g (Per .5L)

Created: Tuesday April 1st 2025

Original Gravity:

1.041

Final Gravity:

1.008

ABV (standard):

4.3%

IBU (tinseth):

41.0

SRM (morey):

2.9

Mash pH

4.3

Cost £

24.64

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Fermentables

Amount	Fermentable	Cost	PPG	°L	Bill %
3,300 g	United Kingdom - Maris Otter Pale3300 g Maris Otter Pale	£ 1.87 / kg £ 6.17	38	1.97	84.6154%
500 g	Flaked Oats500 g Flaked Oats	£ 3.60 / kg £ 1.80	33	1.39	12.8205%
100 g	Crisp Malting - Torrified Wheat100 g Torrified Wheat	£ 2.54 / Kilograms £ 0.25	36	2	2.5641%
3,900 g / £ 8.23

Hops

Amount	Variety	Cost	Type	AA	Use	Time	IBU	Bill %
20 g	Nelson Sauvin20 g Nelson Sauvin Hops	£ 0.07 / Grams £ 1.40	Pellet	12	First Wort at 100 °C	60 min	33.4036	33.3%
40 g	Amarillo40 g Amarillo Hops	£ 0.06 / g £ 2.40	Leaf/Whole	8.33	Boil	5 min	7.64061	66.7%
60 g / £ 3.80

Show Summary View

Amount	Variety	Cost	IBU	Bill %
20 g	Nelson Sauvin (Pellet) 20 g Nelson Sauvin (Pellet) Hops	£ 0.07 / Grams £ 1.40	33.4036	33.3%
40 g	Amarillo (Leaf/Whole) 40 g Amarillo (Leaf/Whole) Hops	£ 0.06 / g £ 2.40	7.64061	66.7%
60 g / £ 3.80

Mash Guidelines

Amount	Description	Type	Start Temp	Target Temp	Time
44 l		Infusion	19.4 °C	18.3 °C	60 min
Starting Mash Thickness: 14.6 L/kg Starting Grain Temp: 22.2 °C

Other Ingredients

Amount	Name	Cost	Type	Use	Time
6.50 g	Calcium Chloride (dihydrate)	£ 0.04 / g £ 0.26	Water Agt	Mash	1 hr.
3.20 g	Epsom Salt	£ 0.02 / g £ 0.06	Water Agt	Mash	1 hr.
2 g	Gypsum	£ 0.01 / g £ 0.02	Water Agt	Mash	1 hr.
4.20 g	Canning Salt	£ 0.01 / g £ 0.04	Water Agt	Mash	1 hr.
5 g	Ascorbic Acid	£ 0.00 / g £ 0.00	Water Agt	Mash	1 hr.
1 g	Brewtan B	£ 0.23 / g £ 0.23	Water Agt	Bottling	14 days
18 ml	Lactic acid	£ 0.00 / g £ 0.00	Water Agt	Mash	1 hr.
£ 0.62

Yeast

Fermentis - LALBREW® NOTTINGHAM HIGH PERFORMANCE ALE YEAST

Amount:	3 Each	Cost:	£ 4.00 / Each £ 12.00
Attenuation (avg):	80%	Flocculation:	High
Optimum Temp:	10 - 22 °C	Starter:	No
Fermentation Temp:	18 °C	Pitch Rate:	0.35 (M cells / ml / ° P) 83 B cells required

£ 12.00 Yeast Pitch Rate and Starter Calculator

Priming

Method: sucrose Temp: 20 °C

Last Updated and Sharing

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Public: Yup, Shared
Last Updated: 2025-04-01 19:44 UTC

Recipe costs can be adjusted by changing the batch size. They won't be saved but will give you an idea of costs if your final yield was different.

Cost for

Gallons

Cost by

Final Yield

	Cost £	Cost %
Fermentables	£
Steeping Grains (Extract Only)	£
Hops	£
Yeast	£
Other	£
Cost Per Barrel	£ 0.00
Cost Per Pint	£ 0.00
Total Cost	£ 0.00

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