Flavored teas are made by adding flavoring agents to tea leaves. The flavoring agents can be natural or nature-identical. They are thicker than water but thinner than olive oil. The amount of flavoring agent used depends on the desired flavor and strength, but is usually between 0.5% and 5% of the weight of the tea. Flavored teas can be made with: Plant extracts Flowers, herbs, spices, or smoke Flavorings or perfumes