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- Xref: sparky alt.beer:7983 rec.crafts.brewing:7857
- Path: sparky!uunet!uunet.ca!geac!zooid!silver.e
- From: silver.e@zooid.guild.org (Eric Silver)
- Newsgroups: alt.beer,rec.crafts.brewing
- Subject: Re: Black and Tan
- Message-ID: <725522731.9001@zooid.guild.org>
- Date: 28 Dec 92 06:05:31 GMT
- Lines: 52
-
- From: butterwo@holst.cs.unc.edu (Jeff Butterworth)
- >I hope this isn't a frequently asked question. I checked the FAQs and didn't
- >see it.
- >
- >My friends and I would like to know how to make a "black and tan." (B&T)
- >For those of you who don't know, a B&T is Guinness extra stout on top of
- >something lighter like Bass pale ale. Legend has it that one can actually
- >keep these two layers from mixing while making the drink.
- >
- >We've tried everything we can think of to carefully prepare this drink
- >but every time we try, the two beers mix immediately. We were always
- >using Guinness and Bass from bottles. We've tried all kinds of physical
- >setups to slowly spread the Guinness on top and to force the Bass to the
- >bottom. We've even tried heating one beer while chilling the other.
- >
- >My fluid dynamics professor said that a chemistry grad student that
- >he knows has discovered the secret. He was at a bar having a B&T when
- >he noticed that the compressed gas for the Guinness on tap was helium while
- >the gas for the Bass was carbon dioxide. He is quite confident that the
- >helium does something to the Guinness (makes it lighter?
- >changes its viscosity?) that keeps it on top and keeps it from mixing.
- >He says that a B&T can not be made using bottled beer because the bottles
- >all use carbon dioxide.
- >
- >I was thrilled to hear this story and it sounds ok to me. However, none
- >of my friends buy it. Is there anyone out there who knows the truth?
- >Jeff Butterworth
-
- This sounds similar to the multilayered Pouscafe (sp?). The multiple layers
- in the Pouscafe are created by CAREFULLY pouring liqueurs of different
- specific gravities (S.G.) and thus different densities, atop one another.
- Often, the layers are different colours as well. For example; Creme de
- Cocao is heavier than Anisette which in turn is heavier than Countreau.
- A three layer Pouscafe could be created by first pouring the Creme de
- Cocao followed by the Anisette followed by the Countreau. The Second and
- third layers are poured against the side of the glass to minimize the
- disturbance to the layers below. (I hope I got those liqueurs in the
- right order :-) ). I better test it :-)
- Presumably, the B&T you speak of, uses a very heavy stout, such as Guiness
- along with a very light (with regard to its S.G.) ale such as Smithwick's,
- I GUESS the He gas is (noble) stable (ie; no free radicals) to physically
- compensate or offset the closeness in S.G.'s of the two beers the professor
- was using. The only problem I see is that, everyone would sound like Donald
- Duck after drinking this concoction :-) :-) (Lighten up will ya, this isn't
- supposed to be all serious :-) ) (Lighten up ... I kill myself :-) )
- I bet it was a lot of fun 'disposing' of the mistakes made trying. :-)
- Regards,
-
- Eric Silver - York, Upper Canada.
- "Legitimize dissent in Canada!"
-
-
-