Caffeine Free. Herbal tea. 100% Natural Tea. There's no mistaking a Zinger. The classic lemonade stand-style refreshment of this enduring favorite starts with real lemons and lively Guatemalan lemongrass. We blend our lemons with hibiscus whose tangy taste and ruby-red color are the signature of a Zinger to create a bright tea that's equally satisfying under the sun and the moon.