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BELKAFILTER

BELKAFILTER™

Potafilter with built-in sensor. Until now, there has never been a way to see real-time concentration, real-time coffee ingredient extraction during brewing: - Compatible with most machines, baskets: - Open and close bottom cap for sensor management - battery rechargeable

Belka App™

This is Belka Filter's Data Logger SW: - Bluetooth connection - Scales can be connected - Extraction detection, automatic recording - Log analysis guide - User profile management - User calibration

"Brew Log?"

Belka was started by a group of people who thought, "Espresso brewing, like roasting, needs log data analysis, but technology limitations are holding it back.


The team developed technology to measure real-time concentration, temperature, and pressure without interrupting the brew. Our brew logs reveal small changes in the brewing process that were previously unknown, and are proving invaluable in practice.


Even if the result looks similar, a different process results in a different flavor.

Like roasting logs, brew logs reduce human trial and error and help you make good judgments.

Mesurement

EC ●

It shows real-time concentration changes through electrical conductivity.

The information provided by the EC log is exactly what baristas want to get from observing the bottomless bottom (channeling, extraction aspect, extraction stability and uniformity);

While a refractometer cannot measure the concentration of flowing coffee, an electrical conductivity meter can.

Since the ratio of ion concentration to TDS concentration in coffee is generally constant, electrical conductivity can be used to determine concentration changes during brewing.

Flow ●

Differentiate the Weight log to show the change in extraction flow per second;

When you see a change in extraction in the EC log, you will usually see a change in Flow, allowing you to analyze the extraction log more clearly;

This is displayed when you connect a Bluetooth scale. (ACAIA, Felicita, Hiroia, Difluid)

EC×Flow ●

A metric that estimates the weight of coffee components being brewed at any given moment.

The information provided by the EC×Flow log is exactly what a barista imagines when and how much coffee component to pull from the bean to accentuate a particular flavor.

Although the area of the EC×Flow log does not equal the weight of the total extracted coffee components, you can estimate the process of yield.

EC

The information provided by the 'EC' is exactly what a barista would want to get from observing a bottomless...The information provided by the 'EC' is exactly what a barista would want to get from observing a bottomless.

Stability

Consistency

Quickly understand if your extraction is stable and consistent without having to taste it. You can spot brewing issues that are difficult for humans to observe. Fixing stability issues can often improve flavor as well.

'"A tangible espresso brew log ensures the stability and flavor of the brew, as well as the maintenance of the machine. A lot of guesswork and uncertainty about the coffee I just served to that customer has been replaced with confidence." 
_Hong Dae-gyu, Goro Coffee Roasters

'"The settings that I write every day, and the brew settings that I set by taste, may not be stable brews, but brews that give me peace of mind. We now need to build more transparent settings and recipes with the right understanding and approach to our coffee. If you can create your own logs through the Velka program, you can be confident in your coffee for a reason." 

_Hongseok Kim, Keep That Coffee

EC×Flow

The information provided by 'EC×Flow' is exactly what baristas used to plan when and how to brew coffee ingredients to maximize coffee flavor.

Designing recipes that include brewing processes

Even if the time, weight, TDS, and yield are similar, different processes will result in different flavors. Now, you can actually see how much of each coffee ingredient will be brewed and when, and design your recipes;

'"Just like you need a roasting log program, you need a Velka extraction log program." 

_Mungyu Jang, Signature Roasters

'"Even with the same amount of dosing and extraction and the same brewing time, the flavor evaluation can vary depending on the degree of extraction of the ingredients in each section. Therefore, we need to make the perfect cup of coffee by delicately controlling the amount of in, out, and grind through sectional design in espresso brewing." 

_Seungkyu Park, Bunker Company

Now you also need extraction log data.

Log data from a green coffee farm

Real-time temperature, humidity, PH, EC... during drying, fermentation...

Log data from roasters

Real-time temperature, agitation speed, exhaust air velocity, ROR, and DTR during the roasting process...

Extractivity log data now includes

Real-time concentration (EC), pressure, temperature, flow, and EC×Flow for the extraction process...

❊ Measurement indicators: 1. Velcafilter (concentration (EC) and temperature of the brewed coffee flowing through it.) 2. filter basket sensor module (pressure inside the filter basket, temperature of the filter basket) 3. Bluetooth scale (flow rate, weight, puck resistance (pressure/flow rate), coffee component extraction trend (ECxflow rate).

DESIGN

STRUCTURE

Compatibility

Espresso machine

The Belka filter is compatible with most commercial 58mm espresso machines((Check out our list of compatible machines)

Display

The Velcafilter does not have its own display device, so you need to connect your smartphone or tablet to use it. You can download the app for free on IOS and Android;

Bluetooth Scales

You can connect the Bluetooth scales of 'ACAIA', 'FELICITA' to the Belka app.

Model

1. Belkafilter

This is the basic type of Velcafilter, which measures the concentration (EC) and temperature of the coffee flowing into the spout.

2. Belkafilter 

+ Filterbasket sensor module

Models with additional filter basket pressure and temperature sensors. The filter basket is fixed to the portafilter and cannot be removed. You can order with either the IMS 20g or VST 20g basket.

센서




The Spout Concentration (EC) Sensor  is located in the inductive outlet of the lower cap. To measure real-time concentration changes without blocking the extraction flow, the Belka team developed a completely new method. The Belka filter is the world's first to use inductive electrical conductivity measurements to show real-time concentration changes in the coffee being brewed.


Spout temperature sensor is located in the same place as the concentration (EC) sensor, and shows the real-time temperature of the coffee flowing through the spout.

The filter pressure sensor is located on the outside side of the basket. To measure the pressure without blocking the extraction flow, the Belka team developed a completely new method. Velka filters are the first in the world to measure real-time extraction pressure (pressure inside the filter basket) through the expansion of the basket. 

The filter temperature sensor  is located on the outside side of the basket. The BELKA team devised a new method to get meaningful information from the temperature of the coffee puck without blocking the brew flow. For the first time, the BELKAFILTER estimates the state of the brew water flow through the center and periphery of the puck by looking at the temperature at the periphery of the puck.

Connect your bluetooth scale  to the BELKA APP to measure and record flow and weight together. 

❊ ACAIA, FELICITA compatible.


특징

Compatible with many machines
IMS, VST basket
Waterproofing the sensor area
Shock resistance
Stainless steel
Food Grade Silicone
Light weight (570g)
KC Authorization
Bluetooth Scale Integration
Cradle for scales