"Paulo Eduardo Neves" <pauloneves@gmail.com> wrote in message
news:cgop6u$h91@odak26.prod.google.com...

[color=blue]
> After some reading, I've come with the following recipe.
>
> o 4Kg of pilsener malt[/color]

Is this malt extract or malted grain? If it's extract that's going to make
a beer around 4.5-5.5 % ABV, if it's malted grain the quantity depends on
how efficinet your mashing and sparging is.
[color=blue]
> o 2oz (56g) of Hallertauer for bittering[/color]

There are two things that determine how much bitterness your hops imparts to
your wort, the Alpha Acid (AA) content of the hops and how long you boil it
for. Typically Hallertau pellets will have an AA of around 4.2% (this can
vary greatly though), a boil for 60 minutes in a 23 litre (5 gal) batch will
give you around 33 IBU's, this doesn't mean you have to boil all 23 litres
though. If you can't find out the AA content of your hops then just use an
average, after all homebrewing is all about variety :)

[color=blue]
> o 1.5oz (42g) of Saaz for aroma[/color]

42g might be a bit much, try using about 20g about 5 minutes before the end
of the boil for flavour and the other 20g at the end of the boil for aroma.
[color=blue]
> o 5 gallons (19L) of water
> o 1 pack of S-04 yeast[/color]

As Denny said, S-04 is an ale yeast, you want to get your hands on some
lager yeast, there are plenty of onsline shops that you can use.
[color=blue]
>
> Is this good? Do you have any good idead about how to enhance the
> recipe?
>Should I try to find other type of yeast?[/color]

Yes!
[color=blue]
>How much time should I boil the hops?[/color]

I hope that helps.