Coffee can recommendations

make a hole at the bottom of the can and put it in a bucket so the roots have space, it's all about the roots in your grow, if you dont manage them dilligently the plant will become root-bound and it may wilt and die. another way to fix the roots is to use a lot of chelation agent / additive : try humic and fluvic acid . Hope this helps ! 🚀

Folgers coffee cans work well, the large plastic red ones. Organoman is right, and I'm sure you're aware the root system will be small as a result of your small container. I would say just hit a few supermarkets and stroll down the coffee aisle looking at containers to see what would suit you best. There are training techniques to help with your yield despite the small root system you'll have so I'm sure you'll have a nice harvest small can or not.

Top it at 4-6 nodes and flower early would be my suggestion. But, for what reason - miniature plants ?? Don't expect much yield, a plant can only grow as big as the root system can support it and in a coffee can, that is one small area for a root system. I wish you luck and congratulate you on your sense of adventure! Cheers, Organoman.