At first many thanks to Hugh and Phil for getting me hooked.
Due to lot of work and no PC at home I cannot post my comments on their samples yet, nor on the way my first roasts tasted.
To make it short, roasting was a success in itself.
But, there is always a but, having read only the german part of the manual for my air popper I managed to melt the shell and lid of that apparatus.
Whe reading the original english manual I found out that this particular machine must not run longer than six minutes at a time!
I will return it to the shop and look for a better one. which will prove to be very difficult, because this was the only one available in town! Air poppers being not much in demand in this country.
Back to square one, then.