Saturday, 24 June 2017

Light blue touchpaper....

Dry hopping is, in general, a pleasurable experience and one of the nicer jobs in the brewery.  For one, you get to smell lots of lovely hop pellets, and even sneak the odd one to rub between your fingers to release the oils and get to the true soul of the hop, and for another it's not (generally) a dirty or strenuous job unless the CT decides to spray you with yeast and/or beer.

This dousing is a very rare occurrence but sometimes, generally if the hop pellets are powdery or loose, the many bits entering the beer will create "nucleation points" which draw the CO2 out of the beer and creates a sudden, sometimes violent, gushing of froth which can catch you unawares if you're gazing reverently into the tank and not watching out for it.... not that I ever do that you understand.

But what are "nucleation points"?  Well, you could always do the usual thing and Google it, but the best example is to imagine a dirty glass into which you pour beer (or any carbonated drink)... the sides of the glass suddenly become covered with bubbles which the dirt is bringing out of suspension.  The other commonly seen manifestation are the new-fangled lager glasses which create a stream of bubbles from the bottom of the glass; this serves no purpose except to look pretty and make the beer go flat extra-quickly, but it's caused by a dimpled bottom (fnarr) which, as you've probably guessed, brings the CO2 out of solution and creates the stream of bubbles.

So, here's what happened tonight when I dry-hopped Waen Pamplemousse in CT7.... it wasn't a particularly violent emission but kept going for a while!  And remember kids, never return to a CT if it goes out, it might go off in your face.  Fnarr.

Thursday, 22 June 2017

Too hot to brew!

I'm sure you've noticed that it's been really hot the last week or so.  

Now this might be a minor inconvenience at work normally, but in a brewery it causes many more problems... chillers are working overtime and frequently pack in, beer is at the wrong temperature and acts differently than usual, and the whole place is like a giant oven when the gas burners under our copper are on.... 40c+ isn't unusual upstairs.

So, this week, we decided to drop one of the brews planned as it was just too hot.... but, mitigatingly, we also had a massive amount of other stuff to do as well, so much that it filled the day completely so I've no idea how we'd have brewed even if we'd wanted to!!!

So, tomorrow (as it's a lot cooler) we're back on track and will be reprising an old favourite which hasn't been seen for a good few years....

Then next week, to catch up, we might have to brew 3 times!