FWIW... Get a hot-air popcorn popper. A $3 one from Goodwill (thrift shop / flea market) will do, so long as the heating chamber is metal. Pour about 3/4 cup o

FWIW... Get a hot-air popcorn popper. A $3 one from Goodwill (thrift shop / flea market) will do, so long as the heating chamber is metal. Pour about 3/4 cup of green coffee beans in (you'll learn to adjust this to the popper). Turn it on. Wait until you hear the beans crack (you'll know) ... keep going just until you start to hear the beans crack again. Turn off, pour beans into cool steel pans, swirl them around until pan warms, repeat until beans are cool. Home-roasted coffee, cheap, fresh. Your pour-over/Aeropress/etc process will have a foamy head much taller than you've ever seen. Flavor will be wonderful & rich. Oh, and do the roasting outside. You'll stink up the kitchen good.