Herbal Tea is made from steeping herbs, spices, fresh or dried flowers, fruit, leaves, seeds or roots in boiling water for a few minutes. The tea is strained and sweetened if desired. Don’t have the time or patience for this approach?
Don’t worry…there’s always the simpler and convenient method – the tea bag! 
Warning: While most herbal teas are caffeine free (I didn’t find any that do contain caffeine.) there are some that can have toxic effects or cause allergic reactions:
*Comfrey – this herbal tea contains alkaloids which can harm the liver after chronic use. Alkaloids are a class of naturally occurring organic compounds that mostly contain basic nitrogen atoms. This group also includes some related compounds with neutral[2] and even weakly acidic properties. Morphine was the first alkaloid isolated in 1804 from the opium poppy. Pregnant women are warned to avoid this herb. If you’re taking prescription drugs, don’t drink comfrey.
*Lobelia – another herbal tea that contains alkaloids. It may cause nausea, vomiting, or dizziness if taken in high amounts. My source didn’t say how much is too much. If you start to exhibit any of these symptoms it would be time to stop drinking it.
*Foxglove – this one is deadly…it can be mistaken for comfrey so it’s best to get comfrey from a trusted source.
Herbal teas are considered a food crop in the U.S. and may contain pesticides or heavy metals. If you are unsure about what to buy, see if you can get organic herbal teas.
Here are a few that you might recognize…they are very popular and have widely known health benefits:
*Chamomile – this is a soothing and relaxing tea that has anti-inflammatory properties…it’s also good for upset stomachs…try it before bedtime instead of that sleeping pill!
*Rooibos (Red Bush) – this tea is grown in South America and is sometimes known in the U.S. as red tea. It has many of the antioxidant properties of green tea without the caffeine.
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Bottom Line: Herbal teas are a great source of hydration…almost a 100% water and no caffeine (well almost)…so many varieties to choose from…so…
Enjoy!
https://en.wikipedia.org/wiki/Herbal_tea
