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29-04-2010, 13:54
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Guess what I've got for you now? That's right, another example of parti-gyling. How did you guess?

This is also from the 1930's, but from another brewery: Courage. In this example there's a wider range of gravities in the beers and they aren't all of the same style. KKK is a Strong Ale, the other two are Milds.

Let's start with KKK:


http://1.bp.blogspot.com/_CHrKKDU9290/S9be34bFxyI/AAAAAAAAG4Q/mbWfUwvXemw/s640/Courage_1930_KKK_gyle.JPG (http://1.bp.blogspot.com/_CHrKKDU9290/S9be34bFxyI/AAAAAAAAG4Q/mbWfUwvXemw/s1600/Courage_1930_KKK_gyle.JPG)

Here's that same information in table form:


Courage 22nd Sept 1930 KKK barrels gravity SG grav points 102 30.4 1084.2 3,101 15 12 1033.2 180 0 2 1005.5 0 3 0 1000.0 0 120 27.34 1075.7 3,281 Source: Courage brewing records
You'll not that the beer used almost all first wort. Not surprising, as it's gravity was only just lower than that of the first wort.

Now MC:


http://4.bp.blogspot.com/_CHrKKDU9290/S9be_XQyIMI/AAAAAAAAG4Y/6O_Rr02PR50/s640/Courage_1930_MC_gyle.JPG (http://4.bp.blogspot.com/_CHrKKDU9290/S9be_XQyIMI/AAAAAAAAG4Y/6O_Rr02PR50/s1600/Courage_1930_MC_gyle.JPG)

In table form:


Courage 22nd Sept 1930 MC barrels gravity SG grav points in FV 5 119 30.4 1084.2 3,618 148 12 1033.2 1,776 91 2 1005.5 182 5 0 1000.0 0 363 15.36 1042.5 5,576 in FV 6 70 30.4 1084.2 2,128 98 12 1033.2 1,176 52 2 1005.5 104 220 15.49 1042.9 3,408 Source: Courage brewing records




The MC was blended in two separate fermenters, FV 5 and FV 6. The blends were slightly different in their composition, but had the same gravity.


And finally, X:


http://4.bp.blogspot.com/_CHrKKDU9290/S9bfHXbKq9I/AAAAAAAAG4g/QnChVXL_oKQ/s640/Courage_1930_X_gyle.JPG (http://4.bp.blogspot.com/_CHrKKDU9290/S9bfHXbKq9I/AAAAAAAAG4g/QnChVXL_oKQ/s1600/Courage_1930_X_gyle.JPG)

Courage 22nd Sept 1930 X barrels gravity SG grav points in FV 13 88 30.4 1084.2 2,675 109 12 1033.2 1,308 161 2 1005.5 322 4 0 1000.0 0 362 11.89 1032.9 4,305 in FV 16 88 30.4 1084.2 2,675 109 12 1033.2 1,308 159 2 1005.5 318 8 0 1000.0 0 362 11.89 1032.9 4,301 Source: Courage brewing records
This was also blended in two different fermenters, FV 13 and FV 16. And again the blends were slightly different.


http://1.bp.blogspot.com/_CHrKKDU9290/S9bttWy7W8I/AAAAAAAAG4o/edVymJho8hQ/s320/Courage_Double_Courage_Old_Ale.jpg (http://1.bp.blogspot.com/_CHrKKDU9290/S9bttWy7W8I/AAAAAAAAG4o/edVymJho8hQ/s1600/Courage_Double_Courage_Old_Ale.jpg)
The worts were generated by a typical mashing scheme: mash, underlet and sparge. I would go into it in more detail, but I don't have the space here. (Or rather it would make this post even longer and duller than it already is.)

Someone asked why they bothered with all the trouble of party-gyling. Having to fiddle with different worts and that. But, the way breweries were set up and the way they brewed, it wasn't as awkward as you might think. The first wort was moved to the coppers and already boiling by the time the sparge had begun. Rather than leave the wort lying around until the whole mashing process was complete, which could cause problems later on, boiling started immediately. The second wort would have been drawn off by the time the first wort had been boiled. Often the same copper would be used to boil all three worts in succession. They had a long brew day. For this brew, the mash started at 10 PM and the last wort was drawn off at 8 AM the next morning.

Let me know if you've had enough parti-gyling. I've a couple of thousand more examples I'm just aching to pester you with.https://blogger.googleusercontent.com/tracker/5445569787371915337-3260887243495939313?l=barclayperkins.blogspot.com


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