Coffee extraction: how do you make a good cup of coffee?

Speaking of “boiled” coffee, there are various kinds of coffee making equipment on the market. But if it’s from the principle of coffee extraction, it’s all the same.
The core process of the extraction principle:
1 grind coffee beans to increase the surface area of the coffee and water.
2 coffee powder is fully soaked in aqueous solution, and the coffee essence is hydrophilic.

3 separate coffee solution and coffee residue.

Coffee extraction is the process of dissolving soluble flavors from coffee grounds in water. Proper brewing of coffee requires using the quantity of coffee, ground precisely, extracted to the correct degree, controlled by the correct time and correct temperature.

All modern coffee extraction is the two core process of soaking and filtering, which belongs to the category of physics, and there is no chemical change in the process. The difference between the thickness of the coffee powder, the length of the soaking time, the method of separating and filtering, and so on, has made a rich brewing apparatus and technique for making coffee. Although the core process of coffee extraction is the same, but according to the significant difference between the pressure and the extraction time used in the extraction of coffee, the modern coffee extraction methods can be simply divided into three kinds.

1: Italy rapid espresso (Espresso)

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It takes 9 atmospheres, 88 degrees C-95 degrees C water temperature, and 22s-27s seconds to extract 30 millilitre of espresso coffee. There is a significant difference from other coffee extraction methods. Non natural conditions can be achieved, reflecting the involvement of technology. Espresso Espresso can usually be made by Italy semi-automatic coffee machine and automatic coffee machine. A good Espresso needs higher requirements for coffee and grinder in terms of price and quality.

2: Soaking extraction (Steep Extraction)

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It is a relatively traditional and natural extraction method of coffee; the extraction temperature is close to 85-92, and the pressure of the filter is around 1 atmospheres.

3: Stainless steel coffee extraction tank

The Coffee Extraction Tank be designed, manufactured and inspected in accordance with the pressure vessel standard(ASME Section VIII) and the steel welded atmospheric pressure vessel standard (NB/T 47003.1-2009) , strictly meet to GMP certificate requirements.

stainless steel coffee extraction tank - Coffee extraction: how do you make a good cup of coffee?

Coffee Extraction Tank usually uses vertical circular tank body, the top is an open structure, the bottom is standard conical head,inner wall of tank adopts circular arc transition, no dead corner, easy to clean; tank body and the bottom head is equipped with the jacket and insulation layer, tank inner wall are mirror polished, meet the sanitary standard.

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Tank Optional Configuration

The body of Coffee Extraction Tank can chose sterile air filter, thermometer (Digital display or Dial type), pressure gauge, sight glasses, sanitary manhole, liquid in-outlet, CIP Universal rotating cleaning ball, safety valve, also can configure as customers’ requirement.

Application 
• Used for extracting coffee

Feature
• Volume:500L~5000L and multiple specification, also can design and manufacture according to customers’ requirement.
• Pneumatic control self-locking type slag extraction valve not only required without leak, but also guarantee under the condition of suddenly without electricity or gas, slag discharge door won’t open automatically, safe and reliable operation.
• The connection adopts Tri-clamp, the tanks’ inner use 304 or 316L. The inner surface mirror polishing Ra≤0.28μm~0.6μm, outer surface can polishing, wire drawing and sandblasting according to customers’ requirement.

Design Parameter

Design pressure

0.02MPa~0.8MPa

Design Temp
temperature.

According to customers’ requirement(0℃~160℃)

Material

Insulation

Rock wool (keep warm)

Support lug

304

Normal Model And Main Technical Parameters

Parameter

Model

SECRKC—500

SECRKC—1000

SECRKC—1500

SECRKC—2000

SECRKC—3000

SECRKC—5000

Effective volume:L

500

1000

1500

2000

3000

5000

Barrel

Diameter:mm

Φ900

Φ1100

Φ1250

Φ1300

Φ1600

Φ1800

Height:mm

1100

1000

1200

1500

1500

1800

Agitator

Power:kW

1.5

1.5

1.5

2.2

2.2

4

RPM:r/min

60(The design can be adjusted according to the customer using condition)

The above-mentioned data is the standard, for reference only.  It can customize according to customer’s requirements.

Source: China Coffee Extraction Tank Manufacturer  www.secmachinery.com

www.secmachinery.com is one of the leading china filtration equipment & sanitary stainless steel pressure vessels manufacturer, with professional factory. We focus on the sanitary pressure vessels, filtration equipment research and development, manufacturing, sales and service since the company been established. Our products is widely used on bio-pharmaceutical, food and beverage, fine chemical industry. 

If you want to have more information about the article or you want to share your opinion with us, contact us at sales@secmachinery.com
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References:

  • https://en.wikipedia.org/wiki/Coffee_extraction

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