Jcm, what cute little coffee cuttings..
Congrats, on your success.
I was just reading about germinating coffee beans...they mention to speed up germination, a heating pad set at 80F degrees, helps a lot.
The author who grows his own plants, also says heat and humidity are very important.
He feeds his coffees during non-growing season once a month..during growing season he feeds every 2 wks.

I believe Coffee plants require acidic soil. Correct me if I'm wrong, but isn't orchid fertilizer alkaline? What I mean is, I was under the impression orchids needed alkline/neutral soil..If this is the case, would orchid fertilizer do?
Whichever fertilizer you use, will you dilute?
For the time being, I'd keep the little guys warm and in good light. (not direct sun)
I don't know where you're located, but coffee plants love humidity. If you're in an area where humidity drops in winter, adding a humidifer will help a lot.
Good luck and again, your plants are so cute..Toni

I am so happy to see your coffee beans on a stem. I have 2 (out of 15) that have sprouted. I kept trying to cover the bean up and eventually gave up. They look like yours (now I know I'm not doing too much wrong). One of the beans looks like it is splitting. It has been for quite a while though. Waiting for more to happen.

Jcm,
Think you have lucked out and found the key to germinating coffee beans on your first go. The KEY IS FRESH BEANS! Well done!
Jgee