Assam Black Loose Leaf Tea Ingredients: Black Tea from the Assam region of India. Caffeine- Yes, lots. It grows out of the ground that way. Non GMO Fair Trade Compliant Sustainably Sourced Gluten Free PREPARATION: Place 1 heaping teaspoon of loose leaf tea per 6 oz of hot to boiling water into an infuser or filter. Allow tea to steep for 3 to 5 minutes, remove infuser/filter with leaves and enjoy. Find disposable tea filters in our accessories section.