I was gently prodded by another blogger last night that I hadn't blogged in a while. I knew that, and one of these days I'll explain why (hint: long hours). I do have a backlog of exciting and provocative topics in the queue. This is one of them.
Having ready access to firkins in their beautiful simplicity, seeing as I'm the guy that washes and fills them, I recently conducted raw science on levels of dry hopping in aforementioned vessels. As you all know but I'll say it anyway, dry hopping is a way of increasing the hop aromas in that pint that you are feverishly clutching. Here at the The Brewery I use Type 90 Hop Pellets, for reasons that for the time being will remain in my queue of unposted topics. These (hint: convenient and space-saving) objects are measured out and dumped into the cask prior to hammering home the shive. The last two batches of "This Time For Sure" (BJCP style designation: Hoppy Pale Liquid Refreshment) employed 50g of Cascade/firkin. Batch 3 was the victim of true science, for I bunged 100g in one of the eight casks, and another received 150g.
Take Home Lesson: Don't do it; unless you want to annoy the publican attempting to draw the first few pints. It clogs up the hop filter at the end of the tap, and seems to get stuck in other things as well. After a couple water rinses through the line and a few pints dispensed in the time-honored gravity method out of the cask, a normal state of dispense was achieved. The gravity pints, albeit delicious, were left with a thick green sludge at the bottom.
I'm brewing another batch today, since somebody drank the last eight casks. I think I'll try 75g/firkin this time, across the board.