Roasting produces CO ?

[MKSwing]

Hi there,
I roasted yesterday on my Imex 162g of greens. After a few minutes I began to feel strange and after the roast I started to have a little headache, which never occurs to me. My girlfriend who is a nurse, said it could be symptoms of CO (carbon monoxide) presence... This does not sound good to me
So is that possible ?

Edit.....

Ok, I googled a little and yes, it produces CO, so be careful when you roast and use good ventilation, or better, roast out of home.

[simonp]

After a few minutes I began to feel strange and after the roast I started to have a little headache

I get this effect sometimes when I roast with the popper, and lean over the open top a lot, I wondered if it was caffeine.

[tisri]

Curious - I just sat my CO sensor next to the Hottop while I roasted some beans well into second crack. I even turned off the fan to make sure it wasn't blowing everything around. For the entire duration of the roast my meter read 0 ppm of CO. When second crack was popping furiously I held the sensor right over the machine to catch as much smoke as possible and it still read 0 ppm.

[MKSwing]

Curious - I just sat my CO sensor next to the Hottop while I roasted some beans well into second crack. I even turned off the fan to make sure it wasn't blowing everything around. For the entire duration of the roast my meter read 0 ppm of CO. When second crack was popping furiously I held the sensor right over the machine to catch as much smoke as possible and it still read 0 ppm.

Maybe it depends on the greens you're using. I never had this feeling before that roast. Could that be the robusta beans ?

[tisri]

Could be, although I think to experience meaningful symptoms from CO you need to be looking at 150+ ppm.

Whether it's the beans or the roaster, or indeed something else entirely, it's hard to say.