Tetley Stout 1858 - 1896

Yes, you guessed it. I'm continuing to be lazy. Putting Tetley's Stout under the microscope is even less effort than looking at their Porter.

Why's that? Because I'm struggling to find London Stout to compare it with. The Tetley's Stout is just too weak. It was rare for a London Stout to dip below 1070º. After a bit of searching I managed to find a set of Truman Stouts that aren't too different in gravity.

The hopping is the first thing to jump out. It's clear that Tetley dropped the hopping rate considerably after 1858. And that after this date is was much less heavily hopped than Truman's Stout. Both started at over 13 lbs per quarter, but Tetley dropped to 7.5 lbs. There was a reduction in the hopping rate at Truman, but to a much lesser degree, still being 11 lbs per quarter in the 1890's.

The degree of attenuation was mostly lower at Tetley, often below 60%. 65-70%, as at Truman, was more typical in London.

As most of the boil times are missing for Truman, I can't really say much about that. The one that there is, shows a generally similar pattern to the boils at Tetley.

I think there can be little doubt that Tetley's Stout would have tasted quite different to Truman's. We'll discover just how different next time when we look at the grists of these beers.

Tetley Stout 1858 - 1896
Year	Beer	Style	OG	FG	ABV	App. Atten-uation	lbs hops/ qtr	hops lb/brl	boil time (hours)	boil time (hours)	boil time (hours)	Pitch temp	max. fermen-tation temp	length of fermen-tation (days)
1858	SP	Stout	1071.7	1024.4	6.27	66.02%	13.89	4.08	1.5	2		º	68º	8
1858	X2P	Stout	1066.2	1021.6	5.90	67.36%	13.89	3.77	1.5	2		º	68º	7
1868	X3 P	Stout	1068.4	1030.2	5.06	55.87%	8.00	2.16	1.5	2	2	65º	66º	6
1868	X3 P	Stout	1067.0	1033.5	4.43	50.00%	7.47	2.19	2	2		66º	66º	6
1878	S	Stout	1065.9				7.43	2.05	2	2		70º	70º	6
1878	S	Stout	1066.5	1027.1	5.20	59.17%	7.43	2.12	2	2		70º	69º	6
1878	S	Stout	1065.9				6.86	2.05	2	2		69º	69.5º	6
1888	S	Stout	1067.0	1028.3	5.13	57.85%	7.47	2.07	2			64º	67º	7
1888	S	Stout	1068.7	1029.1	5.24	57.66%	7.47	2.24	2			65º	68º	7
1896	S	Stout	1064.8	1020.5	5.86	68.38%	6.62	1.75	2			62º	66.5º	6
1896	S	Stout	1066.5	1018.3	6.38	72.50%	5.62	1.59	2	2		61º	68.5º	6
Sources:
Tetley brewing records held at the West Yorkshire Archive Service document numbers WYL756/11/ACC1903, WYL756/16/ACC1903, WYL756/25/ACC1903, WYL756/44/ACC1903 and WYL756/49/ACC1903.

Truman Stout 1855 - 1894
Year	Beer	Style	OG	FG	ABV	App. Atten-uation	lbs hops/ qtr	hops lb/brl	boil time (hours)	boil time (hours)	boil time (hours)	Pitch temp	max. fermen-tation temp	length of fermen-tation (days)
1855	Stout	Stout	1071.7	1025.2	6.16	64.86%	13.6	4.41				63º	78º	9
1860	Stout	Stout	1069.5	1019.9	6.56	71.31%	14.1	4.70				63º	º
1870	Running Stout	Stout	1069.8	1016.6	7.04	76.19%	12.2	4.40				59º	º
1880	Running Stout	Stout	1074.8	1024.9	6.60	66.67%	12.8	4.48				58º	º
1894	SS	Stout	1075.9				11.0	4.10	2	2	3	60º	º
Sources:
Truman brewing records held at the London Metropolitan Archives document numbers B/THB/C/057, B/THB/C/062, B/THB/C/072, B/THB/C/082 and B/THB/C/096.