Can you keep soaking goji berries in alcohol indefinitely?
Generally speaking, it is not recommended to steep goji berries in alcohol for an extended period. The detailed explanation is as follows:

The recommended duration for steeping goji berries in alcohol is typically between 1 to 2 months. During this time frame, the active ingredients from the goji berries can sufficiently dissolve into the alcohol, achieving a favorable balance between flavor and nutritional value.
Extended steeping may lead to bacterial growth in the alcohol, affecting its quality and taste. Moreover, long-term infusion might produce harmful substances, such as methanol, which can pose health risks. Additionally, excessively prolonged steeping can make the liquor overly strong and less palatable.
Once prepared, goji berry wine should be stored in a cool, well-ventilated, and dry place, away from direct sunlight and high temperatures. It is also important to protect it from moisture and insect infestation to maintain its quality. When consuming goji berry wine, moderation is advised—excessive consumption may have negative effects on health.