The recommended amount of coffee grounds per cup generally follows the "Golden Ratio," which is about 1 to 2 tablespoons of coffee grounds for every 6 ounces of water. For a standard 12-ounce coffee cup, this translates to approximately 2 to 4 tablespoons of coffee grounds

. If you prefer to measure by weight, the guideline is roughly 15 to 30 grams of coffee per 6 ounces of water, meaning about 30 to 60 grams for a 12-ounce cup

. Another approach is to use 1 tablespoon of coffee grounds for every 3 ounces of water, so a 9-ounce mug would use 3 tablespoons, and a 12-ounce mug would use 4 tablespoons

. In summary:

• For 6 ounces of water: 1 to 2 tablespoons (about 10-12 grams) of coffee grounds
• For 8 ounces of water: about 1.5 to 2 tablespoons (around 15-18 grams)
• For 12 ounces of water: 2 to 4 tablespoons (30 to 60 grams)

This ratio ensures balanced extraction, avoiding coffee that is too weak or too bitter, and can be adjusted to personal taste or brewing method