A shot of espresso is created by forcing hot water through finely-ground coffee under high pressure.
When you make espresso, you're forcing extremely hot water through finely-ground coffee beans at high pressure. The two most significant distinctions between espresso and coffee are the brewing process and the grind used in the preparation.
If your coffee is ground too coarsely, it will be under-extracted (weak) and flavorless, and it will taste bitter. If you grind your coffee too finely, the result can be bitter coffee if you drink it immediately after grinding.
Dark roast coffee beans should be used for the best results, with a medium to dark roast being preferred. The oils contained within them contribute to a richer crema. They produce an espresso shot that is consistently consistent in terms of body and flavor.
Espresso grinds are typically finer in texture than other types of coffee grinds. This is due to the fact that espresso is made by forcing hot water through densely packed grounds to extract the flavor. Because the coffee grounds come into contact with the water for a shorter period of time, they should be as fine as sand in texture.
The grind must be sufficiently coarse in order to initiate the flow. The espresso will quickly dissipate and become part of the crema.
The basket of the espresso machine becomes clogged when the grind is too fine, preventing water from flowing through. As a result, some of the cups can turn bitter and sour, while others have turned strong in flavor. The flavor of the final brew will vary depending on the size of the grinds used.
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Learn Latte Art - for more related resources.
Other Questions about Coffee :
Where can I rent a coffee machine?
OCM (OnCoffeeMakers.com) was started in 2007 with the first webpage about coffee machines. And for a number of years, we focused on helping people find their desired coffee machine (we still are helping folks with that! So, if you are looking for coffee machines for office or restaurants - check out the link).
In 2010, we started getting enquiries on restaurant marketing and we start to help food and beverage brands with their marketing. Below are campaigns and events that we have done over the years:
OCM's campaigns: F&B Marketing Ideas by OCM
OCM's Events: F&B Industry events by or with OCM
Check out this restaurant marketing guide to learn more about the many campaigns and companies we have worked with.
Since then, we have also created many marketing workshops and classes for the F&B industry. Many of these modules are still running in tertiary institutions such as Temasek Polytechnic Skillsfuture Academy and also ITE College East COC classes, below are some snippets of our lectures and workshops:
OCM’s F&B workshops: Food and Beverage Marketing Lectures | Workshops - click to watch classes on customer journey map, JTBD and more.
So, if you are looking for industry practitioners to help you scale your coffee or F&B businesses, do drop us a message or book an appointment. Do also check out our various social media platforms on regular F&B and coffee market updates:
For regular coffee (F&B) related videos: OCM Youtube
For Daily Coffee Inspiration (fun coffee content): OCM IG
For insights into the coffee (F&B) industry: OCM LinkedIN
PS: For the coffee lovers, we continue to share coffee articles (and videos) and have also started a free coffee class section (with free online coffee training supported by coffee partners).