3.5 pound Big Train Spice Chai Latte Bag for $17

If you are making spiced chai lattes by the gallon [literally, not figuratively] and want a volume buy, at the moment, Amazon actual is offering a Big Train 3.5 pound bag of it for $18~ as a one time purchase or $17~ with the Subscribe-and-Save discount. It averages 4.6 out of 5 based on 15 customer reviews.

Note that this is a lot, so if you are not making it like crazy, you are better off buying in smaller quantities (fresher).