Why Does My Matcha Have a Lead Warning?
                                
                                
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                                    4 min read                                
                            
                                According to Consumer Labs, some green tea leaves can accumulate higher levels of lead from the environment. A lead warning on your matcha, often seen as a California Proposition 65 label, doesn't always mean your tea is unsafe but is a result of the tea plant's natural absorption of heavy metals from its environment and the unique way matcha is prepared.