What is the maximum amount of distilled (hard) liquor any one drink may contain?

There is no universally agreed-upon "maximum amount of distilled liquor" that a single drink can contain. Here's why:

* Drink definitions vary: What constitutes a "drink" differs depending on the context (e.g., a standard drink, a cocktail, a shot).

* Alcohol content varies: Distilled liquors have different alcohol by volume (ABV) percentages, ranging from around 30% to 80% or higher.

* Individual tolerance and guidelines: There are recommendations for moderate alcohol consumption, but the "maximum" for any one drink is highly individual and subject to personal health and safety considerations.

Instead of focusing on a specific "maximum", it's more helpful to consider:

* Standard drink equivalents: One standard drink typically contains about 0.6 fluid ounces of pure alcohol, regardless of the type of beverage.

* Moderation: For adults, the recommended limit is up to one drink per day for women and up to two drinks per day for men.

* Safety and awareness: It's crucial to be mindful of your own tolerance, the context, and the potential risks of excessive alcohol consumption.

If you're unsure about how much is safe for you, it's always best to consult a healthcare professional.