hist-brewing: Historical "non-sanitization"--any experience?

PBLoomis at aol.com PBLoomis at aol.com
Sat May 8 03:28:06 PDT 1999


In a message dated 5/7/99 5:36:43 AM EST, tcl at teleport.com writes:

<< From:  _Brewing Science: The Early Days_, London, 1846:
 
 BREWING UTENSILS, TO CLEAN AND PRESERVE
	<snip>
      Or, throw some quicklime into water in the vessel, and scrub over the
 bottom and sides with it; in each case well washing afterwards with clean
 water. Or, wash well first with oil of vitriol diluted with 8 times its
 weight of water, and afterwards with clean water.
  >>
	They used some tough stuff in those pre-EPA pre-OHSA days.
	Quicklime is CaO, or unslaked lime, just as it comes from the 
limekiln.  It's a moderately ferocious (oxymoron?) caustic which 
will eat holes in wool clothing or your skin.
	Oil of vitriol is pure H2SO4, or concentrated sulfuric acid, one 
of the nastiest chemicals known.  It is so violently hydrophilic that
if you pour it over a lump of sugar, it will yank the H20 out of 
chemical combination in the sugar molecule, leaving a black 
residue of almost pure steaming black carbon.
	Scotti

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