Slightly OT since it deals with heart disease but perhaps coffee oils affect IBD also.
After two years my gut has finally healed enough to drink coffee again. I recently bought a coffee maker and learned something new. Before 1975 when most home coffee was percolated there was a strong correlation with coffee drinking and heart disease. After 1975 when drip coffee became popular that correlation disappeared. But it still applies in Europe where most people drink 'French press' and Espresso which is brewed without filtering. No more mochas at Starbucks.
Apparently the paper filter in drip coffee screens out chemicals that cause heart disease. Metal filters don't work, the filters need to be made out of paper. And don't use paper with extra 'flavor enhancing' perforations. They hinder the filtering. The Mr. Coffee drip coffee maker was rated very highly by Consumer Reports.webhome.idirect.com/~wolfnowl/thyroid9.htmWhen boiled or percolated, consumed coffee can raise serum cholesterol levels. We think it is a result of hot water and coffee grounds combining to create oils called "terpenes."
Research shows that like some other oils, terpenes can raise blood cholesterol when ingested. And the longer the hot water and coffee grounds are in contact with each other -- as with boiled and percolated coffee -- the more terpenes are produced.
The increase in overall cholesterol levels from drinking boiled or percolated coffee varies from person to person, but it averages about 12 mg/dl. An overall reading of below 200 mg/dl is considered healthy..en.wikipedia.org/wiki/Drip_brewBrewing with a paper filter produces clear, light-bodied coffee, which is free of sediments, although lacking in some of coffee's oils and essences, which are trapped in the paper filter. Among these are certain diterpenes that appear to increase risk of coronary heart disease. Metal filters do not remove these components.
Post Edited (BabeintheWoods) : 12/4/2011 1:52:37 PM (GMT-7)