The amount of coffee needed for a single cup depends on the method of brewing, the strength of the coffee, and personal preference.
For drip brewing, most sources recommend using 18 grams of coffee per 320ml of water.
For espresso, the general rule of thumb is to use 18 grams of coffee for every 36-40ml of water. Of course, these are just guidelines, and ultimately it is up to the individual to experiment and find the perfect ratio for their taste buds.
Keep in mind that the brewing method, grind size, and water temperature can all affect the final result, so it is important to be precise and consistent when brewing coffee. With a little trial and error, you will be able to find the perfect cup of coffee for you!
I would also recommend you have a look at our blog Coffee Brew Ratios What You Need To Know: https://www.eraofwe.com/coffee-lab/en/articles/coffee-brew-ratios-what-you-need-to-know
Also, if you want to have more guideliness, find the recipe accordingly with your favorite brew method: https://www.eraofwe.com/coffee-lab/en/coffee-recipes
I hope that you enjoy it, and share with our community your favorite coffee method!