I'm planning on brewing a cider this weekend to be consumed around thanksgiving. I am planning on aging it over some wood chips and cinnamon sticks. The question is, for a 5 gallon bulk age for 3-4 months, how many cinnamon sticks should I use?
Flavors are subjective and each of us have differing tastes and preferences. I would encourage you to experiment a bit as it really depends upon what flavor profile you prefer.
With that said - I do one stick per gallon and leave them in for 2 weeks. The cinnamon flavor tends to mellow and be less prominent after aging a few to 6 months. As a result it will be a bit over flavored with cinnamon for my taste early on and about right after being aged for 6 months or so.
If you leave it in too long, it gets hot - like Atomic Fireball candy or those little Red Hots. We did 1 or 2 weeks before. I didn't really care for that batch of cider. You might consider using allspice (whole berries) with the cinnamon, because it gives a hint of several spices.