Coffee Facts and Trivia

Coffee typically contains 65-115 mg of caffeine per 8-ounce cup depending on the bean type and brewing method. Robusta beans have more caffeine (around 80-135 mg) than Arabica (around 65-115 mg). This range is accurate.

Coffee does have designated holidays - International Coffee Day (October 1) and National Coffee Day (September 29 in USA). These are celebrated globally to recognize coffee's cultural and economic importance in over 70 countries.

The term 'Cup of Joe' is believed to originate from American soldiers in World War I who were served coffee regularly, or from Secretary of the Navy Josephus Daniels who banned alcohol on Navy ships in 1914, making coffee the strongest drink available.

Coffee is one of the world's most traded commodities, second only to oil in some metrics. It ranks among the top commodities globally in terms of trade volume and economic importance, traded on major commodity exchanges like the New York and London exchanges.

Black coffee contains no calories - all calories come from added ingredients like milk, sugar, or sweeteners. Pure black coffee is essentially zero-calorie, making it naturally a no-calorie beverage in its basic form.

This estimate is plausible - the coffee industry employs approximately 25 million people globally across cultivation, processing, trading, and retail. Most employment is in coffee-producing countries in farming and processing. However, exact statistics vary by source and year.

Coffee grounds and coffee byproducts are indeed used in gardening and plant growth. They contain nitrogen, potassium, and other nutrients that can benefit soil. Coffee grounds can help improve soil structure and provide acidity for certain plants like blueberries and roses.