ESBrewer
Well-Known Member
Thanks, some great information again. I have another bottle of 1981 waiting in the fridge, need to try it some day together with the new one when the yeast has settled appropriately. It's bottle conditioned & exported.
I'd not heard before that one reason for using flaked maize was to help finings to work, and he thought it "opened out" the flavour a bit.
Many British ale breweries seem to be quite pedant about the procedure of dropping the yeast, often very soon post-fermentation or even few gravity points before the fermenetation has finished, indicating that the exact amount of yeast is probably important for the development of taste. I have also noticed (in my very limited nr of brews) that dropping excess yeast by not only cold crashing but using gelatin can lead to good results, although this time when brewing the ESB clone, I think I'm going to make a small test by adding some fresh yeast to some bottles at the time of bottling.They centrifuge out all the yeast, then add back 0.5m cells/ml for conditioning where appropriate, it is the production strain in the bottles.
Interesting and valuable information that it is probably not just a single strain.modern single strain (which latest research suggests is a double strain)
I've read from some sources, that the original idea behind maize would have been to dilute not only the body (and cut costs), but also to dilute the high amount of protein in the barley, that would cause haze. So the beers with maize were considered visually more appealing (low protein wort could also mean that less finings are needed to produce clear wort). Never really heard that maize could directly affect the finings but who knows? Today, especially the top quality British/German malting barley is so low in protein that this type of protein dilution is probably useless.
I think it's more that the British tend to think more about conditioning than other brewers since most of their output (traditionally at least) was in cask. You get very rapid feedback from your own tied pubs if the conditioning is "wrong"! And then that's followed through with their approach to bottling - there's a fair bit of pressure from CAMRA to at least have "premium" bottles as bottle-conditioned even though it's a complete nightmare since so much can happen once bottles leave the brewery. So you try to control as much as possible what happens in the brewery.Many British ale breweries seem to be quite pedant about the procedure of dropping the yeast, often very soon post-fermentation or even few gravity points before the fermenetation has finished, indicating that the exact amount of yeast is probably important for the development of taste.
Interesting and valuable information that it is probably not just a single strain.
I always read your posts when i see there is a reply to some thread I've been on add they rarely disappointAlso mentioned that. Although CAMRA focussed on adjuncts as a cost-cutting measure, when you look into it the costs don't look so different - certainly for sugars, there were good brewing reasons for doing it that way.
I think it's more that the British tend to think more about conditioning than other brewers since most of their output (traditionally at least) was in cask. You get very rapid feedback from your own tied pubs if the conditioning is "wrong"! And then that's followed through with their approach to bottling - there's a fair bit of pressure from CAMRA to at least have "premium" bottles as bottle-conditioned even though it's a complete nightmare since so much can happen once bottles leave the brewery. So you try to control as much as possible what happens in the brewery.
Meh - I suspect it's like a lot of these yeasts, you'll get something that looks like 3 strains using standard microbiology and 10 strains with DNA analysis. Whether that makes a material difference to the beer, I wouldn't be so sure. From Fuller's point of view, the big change was in 1976 when they went to conicals and went from three ("microbiology") strains down to one.
I always read your posts when i see there is a reply to some thread I've been on add they rarely disappoint
You got a book or a blog going on? Plenty of good geekery in my humble opinion.
yesterday at BrewCon with John Keeling
Although i do take umbrage with you claiming Northern.. being a Scottish Finn, to me youre a southern nancyToo kind. Nope, this is all I've got...
Just read that Fuller’s have sold their brewing business to Japan’s Asahi. Sad day...
Ok, I can brew it! The hops could still be fine tuned slightly, but I think I will declare this one cloned because I think most people wouldn't notice the difference between this one and the original.
A generic recipe is
OG 1.057
FG 1.010-11
93.8% Crisp Best Ale Malt (Pale ale malt made of Flagon barley)
6% Fawcett Crystal malt (EBC150-175)
0.2% Crisp chocolate malt
1.3g gypsum per 1 kg of grain (powder added to the mash tun, leads to about max 300ppm sulphate in the wort)
base water is this (kloridi = chloride, alkaliteetti = alkalinity, kokonaiskovuus = total hardness)
MASH & SPARGE
65°C / 90min in an infusion mash tun
drain, then sparge only once with base water (no salts) adjusted to ~pH 6 with phosphoric acid
adjust volume / pre boil gravity with base water so that post boil the wort would have OG 1.057
Boil time 60 min
HOP SCHEDULE (all hops were whole cones inside hop bags):
60 min Target so that Beersmith estimates 26.2 IBUs
2.5 min Northdown BS estimate 4.1 IBUs (=almost 3x the amount of target)
2.5 min EKG BS estimate 1.1 IBUs
2.5 min Challenger BS estimate 4.4 IBUs (=same amount as northdown)
10 min Protafloc according to instructions
Removed bittering hop bag(target) at the end of boil. Cooled in ~15 mins to room temperature (so no whirlpool/stand but the late copper hops were still there during the rapid cooling process). Continued cooling until 15 °C using copper coil. Then removed late copper hops. Let the wort stand covered in a fridge for an hour or so. Carefully transferred the clear top phase to fermenter (5 liter glass carboy, 4+ liters of wort) and added just a little bit of boiled water to get it exactly to OG 1.057 (for me post-boil it was 1.059). Let it warm up to 17-18°C in a water bath. Then pitched the yeast slurry from a 0.4 liter starter of wyeast 1968. Fermentation took place submerged in a water bath. Temperature was controlled with some ice elements. Water temperature 17-->21°C gradient, time to reach FG was approximately 4-5 days. Then 2 more days at 21°C ('diacetyl rest'). Then cooled the primary down to 0.5°C in the fridge. 2 days there. Then transferred to two secondary vessels (2 liters each) with virtually no head space and added dry hops (cones in a weighted bag). Target ~1g/liter. Also tried 2g/l but that was probably a bit too much. I kept secondaries at 20°C for 2 days, then 3+ days at 0.5°C. Then removed the hop bags and added a little bit of NBS silica gel finings adjunct and after a while 0.15g/liter of dissolved gelatin. 3+ days again at 0.5°C. Bottled in Fuller's bottles and carbonated to 2.1 vols with boiled glucose solution. 25 days in a dark place at 21°C, then chilled down to serving temperature. On the left, my bottle carbonated version, on the right Fuller's bottled, exported ESB. The Target aroma is still more pungent in Fuller's beer compared to my 1g/l and the hops may express citrus a little bit more. But they are very close now, it is not easy to distinguish these two beers.
View attachment 567285
It has been a fascinating project (my first beer as a homebrewer) and I need to thank everybody for guidance and especially the Fuller's people who have kindly revealed how they do it. I think I will brew some bottles for the summer with minor modifications in hop amounts and process. I'll now turn to Bavarian wheats and some yeast work at home, although it would be nice to brew some mild bitters, too...
Batch volume seems to be 39000 liters so 8.1 kgs(?) probably means about 0.2 grams KCl per one liter of beer. A moderate addition to add a bit of chloride. KCl is probably anhydrous so they add 95 mg chloride per liter of beer. Base water is probably London (Chiswick) municipal water. That would mean 140-150mg/liter chloride altogether if we assume all the chloride ends up in the beer. But I wonder why they prefer potassium over calcium here ?