Coffee Bean Oils: An Important Indicator for Espresso - Which Coffee Beans Produce More Oil When Brewing

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Crema is an Important Indicator of Espresso Success or Failure

A standard Espresso is only about one ounce, covered with a layer of fine foam called "Crema." The finer the Crema foam, the better—it should resemble a layer of colored cream with a deep reddish-brown color close to ocher. If you see a layer of golden fine foam after successful extraction, it might mean the coffee beans are not fresh enough, and this Espresso will lack richness. Additionally, the thickness of Crema should account for at least 1/10 of the coffee, and it should maintain for more than 3 minutes without appearing cracked.

Those who enjoy drinking Espresso regard Crema as an indicator of quality. In fact, it consists of a large group of tiny bubbles, each with a structure of carbon dioxide enclosed by a thin aqueous film. Of course, fresh coffee contains more carbon dioxide internally, so the Espresso made from it will also contain more Crema, providing a "velvet-like smooth and delicate" sensation when drinking. The aqueous film contains large amounts of water and will release quickly, causing the film to lose support and break, making the Crema disappear as well. No wonder Italians always like to wait at the bar and finish their cup of Espresso within thirty seconds.

Key Essentials for Successfully Brewing Espresso:

◎ Coffee beans must be fresh

◎ Coffee grounds must be properly tamped

◎ Must use Espresso Grind fineness

◎ Use Espresso Blend coffee beans

◎ Use moderately roasted coffee beans (Chinese people generally prefer heavily roasted, non-acidic coffee beans)

A good Italian Espresso has a compact, well-textured, long-lasting crema that is several centimeters thick.

Crema is not only a characteristic of Italian Espresso but also preserves the aroma of the coffee in the cup, preventing the aroma from dissipating into the air and being lost. Therefore, this layer of crema acts as a protective layer. The color of crema ranges from dark brown to light brown, sometimes even with reddish tones. The so-called "tiger stripes" — the dark streaks on the crema — are caused by fine coffee particles in the coffee and indicate that this Italian Espresso has been brewed perfectly.

This is not just proof of quality; it's crucial for retaining the directional flavors of the coffee for subsequent olfactory and taste perception, allowing the aromatic flavors to persist until the coffee is completely consumed.

Recommended Coffee Bean Brands with Rich Crema

FrontStreet Coffee, a coffee roasting brand located at Dongshankou, Yuexiu District, Guangzhou, offers freshly roasted Italian blend coffee beans with full guarantees in both brand and quality, with excellent crema production suitable for making specialty coffees and latte art with beautiful results. More importantly, the cost-effectiveness is extremely high. Taking the commercial-grade recommended product — commercial blend coffee beans — as an example, one package weighs one pound (454 grams) and costs only around 60 yuan. Calculating based on 10 grams of coffee powder per cup of Espresso, one package can make 45 cups of coffee, with each cup costing less than 1.5 yuan. Even when using double shots for commercial Espresso production at 20 grams per serving, a double Espresso costs no more than 3 yuan. Compared to certain well-known brands that sell packages for hundreds of yuan, this is truly a conscientious recommendation.

FrontStreet Coffee: A roastery in Guangzhou with a small shop but diverse bean varieties, where you can find both famous and lesser-known beans. They also provide online shop services. https://shop104210103.taobao.com

Important Notice :

前街咖啡 FrontStreet Coffee has moved to new addredd:

FrontStreet Coffee Address: 315,Donghua East Road,GuangZhou

Tel:020 38364473