Turns out the Malt Miller
Owd Rodger recipe is the same as one I'd already found on a forum online and put in Brewfather. I've found several types of recipe, the simple base malt with brown ale, plus variations of base malt with dark crystal, light chocolate, black and other speciality malts, and ones with dark treacle.
So what style is an Owd Rodger? Marston’s is currently calling it a Strong Ale, but I believe it has also been called An Old Ale, a Country Ale, and some old labels called it a Barley wine. The BJCP guidelines have changed in this category a little, and I think it best suits the 'Old Ale' category, so that's what I'm using as a target.
I'm tempted by the simplicity of just using Base & Brown malt, but also really want to add treacle, as I haven't used it before. We don't get Dark Treacle here in NZ but the Chelsea sugar website states:
"If you are using a UK recipe you might find they refer to treacle or dark treacle. Often they are referring to golden syrup when they say treacle, with our Chelsea Treacle being more in line with their dark treacle."
Combining recipes to meet the style, with input from the excellent 'Designing Great Beers' book (Ray Daniels) I came up with:
6500g Gladfield Ale malt (5.5 EBC)
500g Gladfield Brown malt (178 EBC)
450g Treacle (197 EBC)
230g Gladfield Med. Crystal (100 EBC)
This is a robust 7.23 kg of grains, so will likely get to use the boiler extension on my Brewzilla...
And I want to use my Fuggle hops so adding:
84g Fuggle 60 mins
20g Fuggle 20 mins
20g EKG 20 mins
(might tweak this yet as have all these hops in stock, and time to play with IBU).
Giving roughly:
7.2 % ABV, 40 EBC, 45 IBU
Which falls nicely within the guidelines:
Category 17B - Old Ale
5.5-9.0%, 19.7-43.5 EBC, 30-60 IBU
Yeast is another tricky one, consensus seems to be any London Ale type yeast, with 1318, 1028 and WLP023 (Burton) all being mentioned. All are a bit difficult to get here atm though, so I'm looking at an Australian yeast,
Bluestone London (BSY-029) that sounds promising
"Originating from a traditional London brewery, this yeast has a wonderful malt and hop profile. It is a true top cropping strain with a fruity, very light and softly balanced palate. This strain will finish slightly sweet."
Will still have to make a starter looking at the numbers however, so will also purchase a starter kit with my ingredients order, that comes with a 2000ml flask, light DME and nutrients (I already have a stir plate).
So that's the plan, will order gear in and read up on making a starter...