How long do coffee seeds require to germinate?

Question

I bought some seeds of coffee to grow a plant in my living-room. I put them between a couple of paper towels and I wet them. Then I covered them with a dish, so that light cannot affect them, and I keep them in my living-room, at about 20°C. After some days, I cannot see any improvement, yet (the seeds absorbed some water, but they haven't germinated, yet).

So, I wander how long should I wait, before giving up and throw them away...

(I checked https://gardening.stackexchange.com/a/8871/7262, but it doesn't say anything about time)

Thanks!

Answer 1

The potential for germination will continue for almost four months, but after this time the germination rate is several fold less and germination time is significantly longer. Fresh seeds should germinate in 2.5 months, but old seeds can take as long as 6 months. Coffee in pergamino is even better. If this is available plant the coffee face down in the pergamino.

It is advisable to pre-germinate the seeds. First soak the coffee seeds in water for 24 hours. Then sow the seeds in damp sand or wet vermiculite in which the excess water has been drained. Otherwise, you can place the seeds between moist coffee sacks, which should be watered twice a day and drained well.

http://www.coffeeresearch.org/coffee/homegrowing.htm

So looks like it takes a long time to germinate a seed.