I don't think the temperance movement really took here either. At the same time the Kaffeeklappen started to serve meals with no alcohol for dock workers, the hiring of dock day labor (i.e. those not in regular work gangs) was often organized through the pubs, in which naturally the innkeepers placed laborers based on how much alcohol they consumed. (Eventually labor laws changed that, but in the 1890s that was still common in Hamburg.) That was good for the ship owners on several levels, because they only had to deal with the innkeeper instead of individual workers, plus obviously the innkeepers only leased the pubs from property owners, i.e. the rich shipowners and merchants who also invested in houses and such, so since the day labor had to drink a lot to get work again a lot of the wages paid went back into their pockets, or rather never left it when they deducted the rent owed from the wages paid through the innkeepers.