Only one, No. 2 invert, appears in more than one, Greene King and Fullers. But only in tiny quantities, the largest amount is less than 2.5%. You'll note that it's far less than before the war, when it was just shy of 10%. Doubtless the reduction was due to difficulties in sugar supply.
CWA, the other sugar, I found was described as a starch conversion syrup, that is an enzymatic syrup. I assume it must have been added in the mash tun rather than the kettle.
Intense was a caramel of some sort. Pretty obvious from both the name and the minute amount employed. Its use will have been for colour correction rather than flavour of fermentable material.
The malt extract used by Shepherd Neame was EDME, a type of diastatic malt syrup. I suppose it's technically a type of sugar, despite being derived from malt. The candy sugar used in one example was presumably employed as primings..
| AK sugars during WW II | |||||||||
| Date | Year | Brewer | Beer | malt extract | no. 2 sugar | glucose | CWA | Intense | candy |
| 23rd Jan | 1940 | Greene King | AK | 2.35% | 2.35% | ||||
| 8th May | 1940 | Fullers | AK | 0.63% | 0.63% | 0.09% | |||
| 20th May | 1940 | Shepherd Neame | AK | ||||||
| 25th May | 1941 | Fullers | AK | 1.39% | 1.39% | 0.09% | |||
| 4th Feb | 1943 | Shepherd Neame | AK | 0.69% | |||||
| 18th Dec | 1943 | Shepherd Neame | AK | 0.66% | |||||
| 21st Feb | 1944 | Shepherd Neame | AK | 0.64% | 0.64% | ||||
| 27th Nov | 1944 | Shepherd Neame | AK | 0.66% | |||||
| 22nd Feb | 1945 | Shepherd Neame | AK | 0.66% | |||||
| 7th May | 1945 | Shepherd Neame | AK | 1.32% | |||||
| Sources: | |||||||||
| Fullers brewing records held at the brewery. | |||||||||
| Greene King brewing record held at the brewery, document number AC93/1/14 . | |||||||||
| Shepherd Neame brewing record held at the brewery. | |||||||||
Hops next time.
I used EDME malt extract occasionally when home brewing. East (Anglian) Diastatic Malt Extract.
ReplyDeleteEDME stands for English Diastatic Malt Extract, the company founded in 1881 and producing "condensed wort" and other products.
ReplyDeleteAs a home brewer in the UK in the 1970s I used a lot of EDME kits and yeasts, and they are still going strong in cereals and extracts.
https://www.edme.com/about/history/
A snip from Homebrewtalk
[Edme Limited was established in the early 1880s as the English Diastatic Malt Extract Company. So respected were its brewing syrups that in breweries throughout the UK Edme became a generic term for malt extract. In many breweries, the pipe running from the sugar room to the mash tuns is still known as the "Edme pipe." As the 1994 recipient of the Queen's Award for Export Achievement, Edme has built a reputation for quality English malts available the world over.]
There is still a range of EDME home brew products as well, but I believe they sold these brands to Muntons.
http://www.leylandhomebrew.com/cat27_1.htm
Interesting that Shepherd Neame used small quantities of diastatic malt extract. I suppose that was also added to the mash rather than the kettle to aid in conversion? I wonder if the malt they were using was highly kilned and thus low in diastatic activity/enzymes and needed that DME to help out on attenuation.
ReplyDeleteRegarding CWA being a starch conversion/enzymatic syrup: This would have been a syrup made by the enzymatic conversion of starch, i.e. a so called high DE (dextrose equivalent) glucose syrup. These were invented in the late 1930's and were known as "wort syrups" in breweries. Essentially it's a malt substitute/wort extender in terms of sugar composition, probably with a higher level of glucose, thus giving it some of the qualities of invert sugar. Before WW2 starch syrups were made by acid conversion, such as dextro-maltose syrup, and were largely unfermentable.
ReplyDelete