Is it safe to consume alcohol that has been soaked with Rehmannia glutinosa for two years?
Sh熟地黄泡酒2年 if well-preserved and without signs of deterioration can be consumed in moderation. However, it is not recommended if improperly stored or if your physical condition is unsuitable. If in doubt, it is advisable to consult a medical professional in advance. Detailed explanation is as follows:

After prolonged soaking, the efficacy of Rehmannia glutinosa wine in nourishing yin and blood and enriching essence and marrow may be better released. It is suitable for regulating conditions of liver and kidney deficiency or qi and blood insufficiency. If the wine was well sealed during the soaking process and there are no signs of cloudiness, odor, or mold, Rehmannia glutinosa wine can be used as a mild tonic beverage.
If the Rehmannia glutinosa wine has been improperly stored or the consumer has internal damp-heat symptoms, it is not recommended for consumption. If the wine stored for a long time shows abnormal color, odor changes, or impurity sedimentation, there may be risks of deterioration. Consumption may lead to gastrointestinal discomfort such as diarrhea and abdominal pain, or other health issues.
To ensure the quality and safety of medicinal wine, it is recommended to use high-proof alcohol when preparing the wine, and store it in a cool, dry, dark place with good sealing properties.