The Gleaner has an article about the new ban on powders over 12 ounces in a single container.
http://jamaica-gleaner.com/article/l...port-merchants
From what the new regulations are, it seems that this will possibly affect ground coffee purchases. Restrict purchases to half a pound per single container. Beans are another great option!
Spices are also singled out in the article, but 12 ounces of a spice is quite a lot. Two ounces of ganja is a lot, and that has already been decriminalized!
This can be avoided if you put your powdered items in your checked luggage.
Please note, this new regulation currently only applies to flights going into the USA