Is It Bad to Drink Oxidized Matcha? The Complete Health and Flavor Guide
                                
                                
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                                    4 min read                                
                            
                                Matcha's vibrant green color and fresh flavor begin to deteriorate almost immediately upon exposure to air and light. This oxidation process raises a common question for tea drinkers: is it bad to drink oxidized matcha? For most, the answer relates to a disappointing flavor and lost health benefits, not a serious safety risk.