Guinness 411

Found a really cool Guinness FAQ:
http://www.textfiles.com/drugs/guiness-faq

Q: What types of Guinness are there?

A: MJ states 5 or 6 main types in 19 variations. So far, we've
been able to identify (Detailed specifications are listed in
the last section of this FAQ):

Draught Guinness (Ireland, NA), is smooth full-bodied and
creamy. Despite its body, it is a rather mild beer (OG
1039, 3.4% abw, 4.2% abv). This beer is pasteurized.
There are many local variations of this product. The
canned "Pub Draught Guinness" using the draught-flow
(tm) system is a packaged version of this beer.

Bottle Conditioned Guinness (Ireland) had similar
specifications to the Draught Guinness, but the
presence of the yeast provides for a "...spicier,
fruitier, drier, more complex and lively, fresh
character." (MJBC, 182)

Bottled Guinness (Britain) has similar specifications to the
above two beers, but it is pasteurized.

All Malt Guinness (Continental Europe) is available both
draught and bottled. It is slightly stronger and also
has a little more of the characteristic stout bite.

Guinness Extra Stout/Guinness Original (bottled, available
widely) is stronger with even more stout bite. MJ
reports this to be 4.8% abw, 6.0% abv, but one poster
says that in advertising from Guinness Imports, the
strength is listed as 5.6%. This product is licensed
for production widely around the world.

There is a strong bottled version (Belgium and others) that
is somewhat sweeter and stronger (7.5% abv)

Foreign Extra Stout (primarily tropical countries) is also
about 7.5% abv. However, this is blend of Guinnesses,
included one aged for three months.

In Nigeria, which bans barley, Guinness is made from
sorghum.