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Unread 03-29-2008, 08:47 PM   #9
watertowerbbq
is One Chatty Farker
 
Join Date: 11-07-07
Location: Ankeny, IA
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You need three things to achieve a smoke ring..........

1. a moist surface
2. humidity
3. a flame to produce nitrous oxide (NO2)

I learned this at a class I took last year.
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Matt
Head Cook Water Tower BBQ
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