20 Facts you probably don't know about Tea. 1. All tea comes from one plant, Camellia sinensis 2. Tea can absorb smells easily 3. There’s a tea older than your grandparents 4. Tea bags were an accident 5. The British once used tea as money 6. Tea can explode 7. There’s a world record for biggest tea bag 8. Tea was once illegal in some places 9. Tea can stain and protect your teet 10. Some people eat tea leaves 11. Tea fueled addiction and war 12. Workers on tea plantations have faced harsh conditions 13. Tea was once heavily smuggled 14. You might be drinking pesticide residue 15. Tea caused one of the biggest protests in history 16. Boiling tea the wrong way can be dangerous 17. Tea can block iron absorption 18. Some herbal teas aren’t safe 19. Tea pickers have suffered health issues 20. There’s fake tea on the market