RL,
So you added the grape tannin in the beginning of fermentation and now want to add more tea? I missread and thought you wanted to add the tannin now right before bottling. That, I wouldn't do. Adding tea, sure, why not? If you need/want the flavor boost, I'd say fine. But check the flavor first with a sample of your mead and add a bit more tea. Also, then make sure to let it sit for a month or more so that if you kick up more fermentation or more settling occurs, it happens in the carboy and not the bottle.
Sometimes multiple rackings helps clear a stubborn haze. Have you tried that? How long have you been waiting for your mead to clear?
I see the addition of flavors in the final stages as an "infusion". I am a fan of infusion. I find you get a more clear true flavor. But in discussion with Oskaar, he likes the complexity of adding flavors, especially fruits in both first and second stages. The infusion of flavors is where the solvents water and alcohol disolve soluable componants that we percieve as flavor. Fermentation changes and evolves the flavor componants in unpredictable ways.
I keep going back to grape juice fermented evolves into flavors that we percieve as cassis, flint, butter, etc. None of which are added to the wine, but the fermention and age acts upon the grape juice to create those delicate flavors. Which are also a function of aging. And the terrior (spelling?), the land from which the grapes comes.
So back to you tea question: yes, I make 5 gallon batches, generally. BTW, I have added herbal tea to mead at various times and have had good effect. I added a strong water infusion to the mead in primary, secondary, and bulk aging. The herbal flavor doesn't seem to drift much, unlike fruit flavors, IMO.
Chai tea can make a fine mead. One way is a direct infusion of the spices in the secondary rather than a tea. Direct infusion in secondary will allow you to rack off the spices when the flavor is "just right plus a smidge". I also believe that the antifungal properties of spices can inhibit the vigourous initial fermentation.
I made chai mead where I used whole spices that I cracked and boiled (mostly roots and seeds) then added the tea to the mead in secondary. I also boosted the flavor with more tea and whole spices later on after my third rack and during the bulk aging.
Cinnamon can be tricky. Do a search on cinnamon and read up about it on the board. It really depends on what you are using what kind of flavor it imparts. Cinnamon also tends to take a while to blend back into the flavor profile. I have had it overpower the other spices for quite a while before finally stepping back in line.
I suggest getting the flavor balance right by brewing a lot of tea until you get a flavor profile you like. If you want to do a direct infusion into the mead, you can also do a tincture with the spices and vodka for a couple of weeks to get an even better idea of what flavors will be drawn out by both alcohol and water. While water and alcohol can mix together without any problems, there are certain things which are soluable in water and not alcohol and vice versa. So the flavors that will be extracted into mead will be different than a water infusion like tea.
Or you can solve that problem and add the water infusion to the mead. Done both for different effects.
Been too busy in the studio to brew and I have been thinking a lot.
Leonora