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BYOB - Brew Your Own Beer
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This is a work in progress on the newest savvy survivor project. I can't say so far that this is the "correct' way to brew beer, but it is an illustration of how the process works and I will put in more details as this project moves along.
Here is a more
accurate picture of what you will need to make beer. I started out with
what I was told was a "complete" beer making kit, but soon realized
that it required another $80 worth of stuff. At that, I ended up getting a
few more items after taking this picture. What you see here is basically
what would be used to make a five gallon batch of beer. I later learned
that perfectly good beer can be made by cutting back to one can of malt extract
and putting in more corn sugar for the five gallon batch.
The beer making kit included a five gallon pail that could be used as the fermenter, but that still requires moving the beer between the pot and the fermenter more than once. I was able to find a five gallon water jug in storage and cleaned it out with a special brush from the brewing supply place. Adding a handle helps a lot when moving it around. Beer makers will call such a jug a "carboy". I don't trust the tap water where I am at, so I went with bottled water. This is not a necessary step in the beer making. The beer making kit came with a siphon hose, hydrometer, airlock and rubber plug that works for the glass jug, but not the hole in the bucket. Ingredients that came with the kit include two cans of malt extract syrup, a bag of corn sugar, and two bags of dried yeast. I ended up having to buy the large pot and strainer, then later on got measuring cups, a funnel with a filter and tube and a few other odds and ends. The book came with the beer making kit but better books can be found at your local library.
I get the
impression that beer making is not an exact science, but the various recipes on
the book and on the can (none of which were very clear) all seem to point out
that you don't really "brew" all of the beer in a pot. Hence,
you don't absolutely need the six gallon pot, but it will help with larger
batches of beer or other drinks. The malt extract syrup is
very thick and sticky, like molasses. I poured it into 1.5 gallons
of water and then filled and emptied the can with the brew several times in
order to melt the rest of the stuff out of the can. The book said to boil
the brew 15 to 30 minutes. I noticed that the concentrated stuff did
not really fully mix into the water until about ten minutes after it was boiling
so I went the full 30 minutes.
Once the water was
just starting to boil, I put in some of the corn sugar. The different recipes
had listed different amounts, so I put in what I figure would be a good
amount. In alcohol making in general, more sugar content in the brew or
mash will translate to more alcohol content in your drink. So on
that thought, a healthy dose of extra sugar can be a good thing. I
boiled the brew for a while after this to make certain the sugar would be fully
suspended in the brew.
The directions were
to boil the water for a while then pour it into three gallons of cold water in
the fermenter. Normally, if you have added any grain or hops to
flavor the beer, you will strain it at this point. I did not want the mess
of trying to pour the brew into the jug through a funnel, so I put the water in
the clean bucket and poured the hot brew into it. Once that was
done, I used the siphon hose to put the brew into the jig with almost no
spillage and minimal effort. Siphoning is the safest way to move
liquids between large containers like this. Just make sure the
destination container is below the source container and suck start the
siphon. Gravity takes care of the rest. 
Another thing that needs to happen at this point is that the brew needs to cool down. Beer making is generally a "cold" process unlike distilling. The long skinny hose helps to reduce the thermal mass of liquids running through it so they get more cooling in the air. You can also use a longer hose and run a length of it through a pail of icewater before it reaches the glass jug.
Cleanliness is stressed
in beer making for a few reasons. First, there are lots of contaminates
that can come in contact with the beer and alter the taste. Then there are
various fungus and nasties that can make the beer unpalatable.
Minimizing exposure to these things is important to the brewer. Good
news is that known deadly pathogens can't live in beer - especially the home
brew types with higher alcohol content than commercial beers. The glass
jugs can be tricky to clean so extra steps taken to keep sediment and other
stuff out can help. The picture to the left shows what was in the
bottom of the bucket after the siphon reached the bottom. Better to throw
the sediment away at this point than put it in with the brew. Clean
the hose immediately by siphoning clean water through it. I did this
fairly easily by just siphoning some hot bleach water from the sink into the
bucket and then I cleaned the bucket for later use.
The jug will
probably not be full all the way to the top, which is fine. It will not
hurt to put in a little more water to replace spillage if you had any up to this
point but don't fill it all the way to the top. At this point,
it becomes important to keep the brew out of sunlight. It will
probably still be warm and may look like it might be beginning to ferment, but
you will need to ad brewer's yeast for the real fermenting process.
The brew can take several hours to cool and it must be down to around 70 degrees
before you ad the yeast.
Mix the yeast with
a small amount of water as per the instructions on the packet. In the case
of this yeast, that means 3/4 cup of lukewarm water. They specify to use
water that had been recently boiled to kill off any other possible
bacteria. Let the yeast water sit for at least 15 minutes before
doing anything else with it. Once that is done, stir the stuff to dissolve
any remaining yeast granules.
Check the specific gravity of the beer after it has cooled to see if you have a good sugar content. If the specific gravity is too low (meaning it is too close to water which is 1.000 on the scale) then you will want to mix in some sugar. You can ad this from the top of the bottle and then agitate the bottle to mix it in. Optimum readings should be between 1.035 to 1.042. I had to put some more sugar in at this point.
I used an
improvised funnel to make sure that no yeast made got spilled on the outside of
the jug. Absolutely positively wait until the brew has fully cooled before
adding yeast. The first yeast to go into this brew was DOA because the
brew was still too warm. You should get some bubbling within a few
minutes. If you do not get any bubbling (fermentation) there might be a
problem with your yeast culture. Note that does not mean you should
expect it to be like dropping Alka-seltzer in a glass of
water.
Sunlight can also kill the yeast, so this step is best done in a low light environment. Yeast thrives in cool, damp places like a cellar.
Here is the way
the beer should look after a few hours. This is day 2 on my batch
with some suds showing stuff floating to the top. A bubble of
expanding gas pops through the fermentation lock about once every three
seconds.
Detail of
the fermentation lock shows its fairly simple operation. Expanding air
escapes from the jug by forcing bubbles through the water but air from the
outside of the jug cannot compress the plastic float far enough into the water
to enter the bottle. Thus the device is a one way airlock and crucial to
any fermenting process. The same size fermentation lock is used on
many sizes of bottles and jugs.
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