Home › Search › rate of change

“rate of change” search results (2000)

The coffee doesn't taste right. Could it be the color of the cup?

The coffee doesn't taste right. Could it be the color of the cup?

A recent study in Australia found that the color of coffee cups may change the taste of coffee! This study investigated the effects of white, blue and transparent glass on taste differences in three different colors of coffee cups. The researchers offered 18 participants the same coffee in cups of similar shapes but different colors, and then asked them to mark the sweetness and aroma of the coffee.

2015-07-31
New findings in the industry: changes in the response of boys and girls to caffeine

New findings in the industry: changes in the response of boys and girls to caffeine

Coffee has become a well-known word, and coffee has many functions. Coffee can reduce the incidence of heart disease and keep blood pressure stable, but only if there is a difference between men and women. According to a recent report on a foreign website, well-known scientists have found that caffeine has a greater impact on men. Let's witness the magic of coffee and understand how caffeine responds to gender.

2015-08-18
General knowledge of making Italian Coffee with ESPRESSO Checklist

General knowledge of making Italian Coffee with ESPRESSO Checklist

ESPRESSO problem check list 1. Observe whether the flow rate of coffee from the handle of the filter is between 25 and 30 seconds Q. The possible reason for the excessive flow rate is: 2, 4, 4, 5 Q. The possible reasons for the slow flow rate are as follows: 32. Observe the shape of the CREMA of coffee flowing out of the handle of the filter, whether it is a thick and smooth flow of Q.CREMA with too much water content, not a smooth flow, but a spatter from the handle.

2015-08-12
Detailed analysis of low molecular weight sugars in coffee beans

Detailed analysis of low molecular weight sugars in coffee beans

Moisture: the water content of coffee beans varies greatly with different processing stages and products. The moisture content of wet coffee beans with film is about 50%, while that of dried raw coffee beans is about 10%-13%. The water content of roasted coffee beans is only less than 5%. The existence of water in coffee beans is the same as other kinds of food and beverages, because it contains a considerable amount of hydration colloid macromolecules.

2015-09-16
ESPRESSO problem Checklist-as a good barista must know

ESPRESSO problem Checklist-as a good barista must know

Summary: ESPRESSO problem checklist 1. Observe whether the flow rate of coffee from the handle of the filter is between 25 and 30 seconds Q. The possible reason for the excessive flow rate is: 2, 4, 4, 5 Q. The possible reasons for the slow flow rate are as follows: 32. Observe the shape of the CREMA of the coffee flowing out of the handle of the filter, whether it is a thick and smooth flow of Q.CREMA with too much water content, not a smooth flow, but a splash out of the handle.

2015-11-21
Detailed Analysis of Coffee Bean ingredients basic knowledge of Fine Coffee

Detailed Analysis of Coffee Bean ingredients basic knowledge of Fine Coffee

Moisture: the water content of coffee beans varies greatly with different processing stages and products. The moisture content of wet coffee beans with film is about 50%, while that of dried raw coffee beans is about 10%-13%. The water content of roasted coffee beans is only less than 5%. The existence of water in coffee beans is the same as other kinds of food and beverages, because it contains a considerable amount of hydration colloid macromolecules.

2015-07-24
The relationship between the Flavor of Coffee and its growth altitude

The relationship between the Flavor of Coffee and its growth altitude

We should all understand that raw coffee beans are generally graded according to their size, defect rate and altitude. The size and defect rate of raw beans are easy to understand, and many people do not quite understand why some producing areas use the altitude of coffee beans as the basis for grading. Many coffee sellers also boast that their coffee is high-altitude coffee and sell it at a high price. This is also the most encountered when telling students about grading.

2015-10-20
The basic knowledge of coffee machine for making problem checklist by ESPRESSO

The basic knowledge of coffee machine for making problem checklist by ESPRESSO

There are always some problems when we use coffee machines to extract espresso, so let's see what the problems will be. And how to find the reason: one. Observe whether the flow rate of coffee from the handle of the filter is between 25 and 30 seconds Q. The possible reason for the excessive flow rate is: 2, 4, 4, 5 Q. The possible reasons for the slow flow rate are as follows: 32. Watch the coffee flow out of the filter handle (CR)

2015-11-11
Detailed analysis of the ingredients of coffee beans general knowledge of fine coffee

Detailed analysis of the ingredients of coffee beans general knowledge of fine coffee

Moisture: the water content of coffee beans varies greatly with different processing stages and products. The moisture content of wet coffee beans with film is about 50%, while that of dried raw coffee beans is about 10%-13%. The water content of roasted coffee beans is only less than 5%. The existence of water in coffee beans is the same as other kinds of food and beverages, because it contains a considerable amount of hydration colloid macromolecules.

2015-02-25
The extraction rate of fine coffee is related to the concentration and the amount of water extracted from coffee?

The extraction rate of fine coffee is related to the concentration and the amount of water extracted from coffee?

However, due to the different tastes of different populations, the requirements for intensity are different, and the theory cannot point out that the specific flavor or the miscellaneous flavor originally caused by the problem of beans is the so-called extraction rate, that is, how much coffee powder will be dissolved in water when it is placed in water. According to SCAA theory, up to 30% of the material will be dissolved in water. In general, if the substance dissolved in water occupies the coffee

2016-06-04
The importance of filter cup in follicular brewing coffee

The importance of filter cup in follicular brewing coffee

In follicular coffee, water injection in the hand pot plays an active role in interacting with coffee powder. The filter cup provides the stage-the flow rate of downward extraction during coffee brewing and the heat dissipation efficiency of the filter cup material itself. How will this stage affect us in making coffee?

2014-09-10
Hand coffee maker

Hand coffee maker

Hand coffee pot introduction: hand coffee is a way that individuals can fully control all aspects of coffee, through the changes of water temperature, steaming time, flow rate, grinding thickness and other aspects to adjust the taste of coffee. Hand coffee can be made casually in the office, or seriously as a fever, friendly and fun, which can be said to be the starting point.

2014-09-11
How to get the perfect taste of coffee know what is good coffee

How to get the perfect taste of coffee know what is good coffee

To really understand what is good coffee, we must start by understanding the taste of coffee. The history of measuring the taste of coffee can be traced back to the 1850s, when Professor Lockhart (E. E. Lockhart), a chemistry professor at the Massachusetts Institute of Technology, conducted a series of surveys on coffee taste preferences, and Professor Lockhart published his

2015-03-13
The way to make coffee how to get the perfect taste of coffee

The way to make coffee how to get the perfect taste of coffee

To really understand what is good coffee, we must start by understanding the taste of coffee. The history of measuring the taste of coffee can be traced back to the 1850s, when Professor Lockhart (E. E. Lockhart), a chemistry professor at the Massachusetts Institute of Technology, conducted a series of surveys on coffee taste preferences, and Professor Lockhart published his

2015-01-05
The factors affecting the quality of espresso by the Common sense of Fine Coffee

The factors affecting the quality of espresso by the Common sense of Fine Coffee

The addition of prepreg can improve the success rate of extraction to a certain extent, so some high-end machines have the function of adding free control of prepreg time. As for the comparison between prepreg and non-prepreg production methods, they are more inclined to the difference of product style, not the difference between good and bad. 1. The addition of prepreg time can improve the success rate of extraction to a certain extent, so some high-end machines have been added.

2014-11-25
How to get the perfect taste of coffee starts with understanding the taste of coffee.

How to get the perfect taste of coffee starts with understanding the taste of coffee.

To really understand what is good coffee, we must start by understanding the taste of coffee. The history of measuring the taste of coffee can be traced back to the 1850s, when Professor Lockhart (E. E. Lockhart), a chemistry professor at the Massachusetts Institute of Technology, conducted a series of surveys on coffee taste preferences, and Professor Lockhart published his

2015-10-16
Effect of Powder content on Coffee in Coffee production

Effect of Powder content on Coffee in Coffee production

1. The concentration determines the richness of the coffee. It is the soluble matter that determines the concentration. (it is worth mentioning that XLW007 in the common sense group mentioned that insoluble substances can also increase the thickness of caffeine. I totally agree, but this time I only focus on the main cause of soluble matter.) generally, the calculation can be measured by the concentration photorefractometer: TDS%= TDS/Coffee Weight.

2014-07-18
Proportion parameters of hand-brewed coffee powder recommended brewing ratio of hand-brewed coffee standard

Proportion parameters of hand-brewed coffee powder recommended brewing ratio of hand-brewed coffee standard

In the field of coffee, SCAE and SCAA are the most thorough and authoritative. Therefore, for a layman like me who lacks the spirit, ability and conditions to delve into it, borrowlism is the simplest solution. Standard brewing ratio (StandardBrewingRa)

2023-01-12
The latest coffee news ready-to-drink coffee this summer the beverage giant is still adding size to the strategic partnership between Nestl é and Alibaba.

The latest coffee news ready-to-drink coffee this summer the beverage giant is still adding size to the strategic partnership between Nestl é and Alibaba.

The data show that China's coffee market is growing at an annual rate of 15% and 20%. Among them, the compound growth rate of instant coffee is as high as 34.2%. From Coca-Cola's high-profile launch of Qiaoya, Yibao teamed up with Japanese Kirin Hot Cafe, Starbucks chose to meet with Master Kang's petty bourgeoisie, and uniformly launched the new ready-to-drink coffee strategy Yaha hey series, Wa also launched Maoyuan Coffee.

2016-04-18
Detailed Analysis of Coffee Bean ingredients basic knowledge of Fine Coffee

Detailed Analysis of Coffee Bean ingredients basic knowledge of Fine Coffee

Moisture: the water content of coffee beans varies greatly with different processing stages and products. The moisture content of wet coffee beans with film is about 50%, while that of dried raw coffee beans is about 10%-13%. The water content of roasted coffee beans is only less than 5%. The existence of water in coffee beans is the same as other kinds of food and beverages, because it contains a considerable amount of hydration colloid macromolecules.

2015-06-06
↑