What is the correct dosage of ground coffee in group handle for one espresso?

There's no single "correct" dosage for ground coffee in a group handle for one espresso. The ideal amount varies based on several factors:

1. Coffee Bean Type:

* Dark Roast: These beans have a higher caffeine content, so you'll need less coffee for a strong espresso. Around 16-18 grams is typical.

* Medium Roast: Requires a slightly higher dosage, around 18-20 grams.

* Light Roast: These beans have a lower caffeine content, so you'll need more for a good extraction. Expect to use 20-22 grams.

2. Grind Size:

* Finer Grind: A finer grind allows water to pass through more slowly, requiring less coffee.

* Coarser Grind: A coarser grind allows water to pass through faster, requiring more coffee.

3. Espresso Machine:

* Higher Pressure: Machines with higher pressure require less coffee for a good extraction.

* Lower Pressure: Machines with lower pressure may need more coffee.

4. Personal Preference:

* Stronger Espresso: Use a higher dose for a bolder flavor and more caffeine.

* Milder Espresso: Use a lower dose for a lighter, less intense flavor.

General Guidelines:

* Single Espresso (1oz): 18-20 grams of ground coffee

* Double Espresso (2oz): 36-40 grams of ground coffee

Tips:

* Start with 18 grams: This is a good starting point for most espresso machines and coffee beans.

* Adjust based on taste: If your espresso is too weak, increase the dosage by 1-2 grams at a time. If it's too strong, decrease the dosage.

* Weigh your coffee: Using a scale is crucial for consistent espresso extraction.

Important Note: The dosage is only one aspect of making good espresso. You also need to consider grind size, tamp pressure, and water temperature for optimal results.