Can I drink cold water while drinking alcohol?

Generally speaking, it is not recommended to drink ice water while consuming alcohol. The detailed explanation is as follows:

To avoid adverse effects of ice water on the taste buds, it is advisable not to consume ice water while drinking alcohol. Ice water may lower the temperature of the tongue, thereby affecting the sensitivity of the taste buds. At lower temperatures, the taste buds' ability to perceive flavors may weaken, which could make it difficult to fully appreciate the taste and flavor of the alcohol. The optimal temperature range for tasting flavors is approximately 10–40°C; within this range, the sensitivity of the tongue to taste generally increases as the temperature rises.

Ice water is too cold and may irritate the gastrointestinal tract after consumption, especially following alcohol intake, potentially causing discomfort or digestive issues. Alcohol is highly irritating and, upon consumption, can stimulate the gastrointestinal mucosa, leading to dilation of gastrointestinal blood vessels and increased blood circulation. Cold beverages, being at a much lower temperature, can cause sudden cooling and contraction of the gastrointestinal mucosa upon ingestion. This abrupt contrast between hot and cold may disrupt the normal peristaltic rhythm and digestive function of the gastrointestinal tract.

Alcohol consumption should be moderate to avoid excessive intake and potential harm to the body. If a beverage is desired alongside alcohol, it is recommended to choose water or drinks at room temperature, avoiding excessively cold or hot beverages that may adversely affect the taste buds and gastrointestinal system.