Heineken (Rotterdam) output in 1941

It's taking me rather longer than expected to note down every brew Heineken brew in Rotterdam 1939 to 1943. Literally as much fun as it sounds. That is, none at all. Pretty sure it will be worth it.Pretty sure, but not totally.

In 1941, they brewed quite a lot of beer still - over 300,000 hl.I assume that they brewed a similar amount in Amsterdam. At an average OG of 8.1º Plato, isn't too bad. Bit look at the trend: downwards, finishing at under 6º Plato at the end of the year. To put that onto context, average UK OG in 1941 was 1038.5º - that's about 9.6º Plato. In just a few months, Heineken's beer had gone from being about as strong as that in the UK to being watery piss.

It's more beer than they manged to brew more than the previous year's 306,919 hl.* Not that bad a result, I suppose, 324,849 hl. in 1941. The trend did look to be downwards, with December output the lowest for the whole year.

Heineken (Rotterdam) output in 1941
Month	Year	hl.	gravity points	Average OG Plato
Jan	1941	42,347	390,432	9.2
Feb	1941	29,032	259,061	8.9
Mar	1941	37,632	347,112	9.2
Apr	1941	18,974	187,464	9.9
May	1941	20,572	203,422	9.9
Jun	1941	27,629	267,291	9.7
Jul	1941	39,629	297,548	7.5
Aug	1941	29,863	195,022	6.5
Sep	1941	23,010	157,429	6.8
Oct	1941	20,524	127,905	6.2
Nov	1941	19,916	114,759	5.8
Dec	1941	15,721	92,089	5.9
total		324,849	2,639,534	8.1
Source:
Heineken brewing record held at the Amsterdamse Stadsarchief, document number 834 - 1760.

* Heineken brewing record held at the Amsterdamse Stadsarchief, document number 834 - 1759.