On Sat, Oct 25, 2003 at 02:06:15PM +0200, Christian F. Behrens wrote:
> From: "Christian F. Behrens" <[EMAIL PROTECTED]>
> 
> Mit første bryg skal være en ?all-grain? IPA, selvom jeg (måske) vil 
> knække nakken på dette, så finder jeg det mere tiltalende end ekstrakt. 

There is nothing scary about all-grain brewing. It takes a little bit
more time and work, which means you can spend more time with an
interesting hobby. All-grain brewing gives you much more control over
various variables in the process, so you can get just the beer you want.
On the other hand, as a beginner, you may not know how to control these
things, and end up with more variability in your beer. As I have said
before, it will be beer anyway, and probably damn good beer at that!


> Stort set al den litteratur, jeg har læst, anbefaler, at man tilføjer 
> lidt (varierende mængde [http://haandbryg.dk/eftergaering.html]), opløst 
> sukker, inden man hælder bryggen på flaske.

There are various ways to get that carbonation, from adding pure CO2
with a counter-pressure filler, to saving some of your wort for that
purpose, to adding sugar, to...

> Ideen er, at man under mæskningen holder temperaturen på omkring 68 
> grader i en periode, hvilket skulle sikre, at noget af stivelsen i 
> malten bliver til ?sukker?, der kun fermenteres langsomt. Denne proces 
> vil så finde sted i flasken og dermed karbonere øllet tilpas. Prisen er, 
> at brygget skal lageres betydeligt længere, end ens 
> tålmodighed/nysgerrighed vil tolerer. Til gengæld slipper man for at 
> tilkalde forstærkninger fra Dansico.

In theory this sounds like a good plan. I can see a few practical
problems with it. Most of all, no good way to control if the mashing has
produced enough of the "non"-fermentable sugars (and in which
proportions), and therefore no idea of how much CO2 will be produced in
the bottles during the lagering period. 

You sound like you are afraid of flat beer. Of course that is a boring
outcome, but it can be helped by opening the bottles, adding priming
sugar, and waiting a week or three. Boring, perhaps, but not dangerous.

The thing you should fear is overcarbonating them bottles. If there is
too much of fermentable sugars left in the brew (as sometimes happens to
impatient beginners who bottle too early) and/or if too much priming
sugar is added, the fermentation keeps producing CO2 well over and
beyond what is proper. In small quantities this means that when you open
your bottle, the beer gushes out in foam. Once you have cleaned up the
mess and let the foam settle in your glass, you get maybe a deciliter of
beer out of a bottle. But it can get *much* worse than that, for there
is a natural limit on how much pressure a bottle can hold. The caps are
surprisingly strong, they will not pop out. Once the bottles have
reached the critical pressure, a small disturbance can trigger an
explosion, sending splinters everywhere in the room, some of them at
surprisingly high velocity. And Murphy's Law guarantees that at least
one of them will hit you, sharp edge first, and draw a lot of blood. Of
course the flying schrapnell will hit other bottles in the box, and if
they are at sufficient pressure, trigger the same reaction in them too.
Such a chain reaction of bottle explosions can be outright deadly, and
even in the best case, leaves a hell of a mess behind.

This is not to say that your slow-fermenting technique wouldn't work,
only to caution you that it is indeed an advanced technology, and might
not be suitable in your first brew. If adding sugar is so much against
your philosophy, then save some of your wort, cool it down (freeze it?),
and use it for priming. Remember to boil it the bottling day, to be
sure it is clean. Measure the sugar content with your hydrometer, and
you should be able to get just the same amount of control over the
carbonation as by adding sugar.


What ever you do, please report back how it went, so we can increase the
amount of knowlege on this list!

Best regards

  Heikki
-- 
Heikki Levanto  LSD - Levanto Software Development   <[EMAIL PROTECTED]>



Besvar via email