Does homemade medicinal liquor have an expiration date?
Generally speaking, homemade medicinal liquor has a shelf life that depends on the ingredients and storage conditions. It can be consumed within a short period if there are no abnormalities, but should be discarded if spoiled. If in doubt, it is advisable to consult a healthcare professional beforehand. The detailed analysis is as follows:

If fresh, unspoiled ingredients are used, steeped in high-proof baijiu (over 50% alcohol by volume), and stored sealed in a cool, dry, dark place, the shelf life of the medicinal liquor is typically 1–3 years. High alcohol content helps inhibit bacterial growth, while sealed storage reduces oxidation and contamination, thereby delaying spoilage and making consumption relatively safe during this period.
However, if the ingredients are of poor quality, the alcohol content is too low, or if the container is not properly sealed or stored in a damp, hot environment, the medicinal liquor may spoil prematurely. Spoiled liquor may develop an off odor, appear cloudy, have increased sediment, and some herbs may rot or develop mold—such liquor must not be consumed. Even if not visibly spoiled, long-term storage may lead to diminished medicinal potency, and chemical changes over time could produce harmful substances; such cases require prompt disposal.
It is recommended to use fresh, high-quality ingredients and high-proof baijiu when preparing homemade medicinal liquor, store it properly in a sealed container, and consume it within one year. Always inspect the appearance and smell before drinking; discard immediately if any signs of spoilage are present. Avoid blindly consuming aged medicinal liquor to prevent potential health risks.