Our “Traditional Mate” is now called Traditional Tereré (pronounced tey-dey-rey), meaning "cold mate" in Spanish. Lightly sweetened with organic cane sugar for those who love a subtle touch of sweet with their mate. 16 oz glass bottle. Guayakí Bottled Yerba Mate - Finally, an invigorating mate blend that tastes great! Each Guayakí Organic Yerba Mate bottle contains caffeine levels comparable to a cup of coffee, however, the stimulation is balanced by mate's natural theobromines and theophyllines as well as other restorative nutritional content. As a result, drinkers feel a sustained energy, clarity of mind, and the general well being characteristic of mate. Grab a bottle before any physical activity or going back to the office, and experience the good energy.