COFFEE ROASTER l Mode own 2K Sh 28PKN-88 Owner’s Manual This manual covers models KN-8828B-2K and KN-8828P-2K REV. BP-2K v.1.4 June 2012 Manufactured by Chang Yue Industrial Corp.® No. 170, Chung Lun, Chung Sha Tsun, An Ding Shian Tainan, Taiwan Tel: 886-6-593-2311 Fax: 886-6-593-4834 Hottop USA 25 Katelan Court Cranston, Rhode Island 02921 Fax: (401) 946-0268 Email: hottop@ms12.hinet.net Email: hottop@hottopusa.com www.hottop.com.tw www.hottopusa.
READ THIS ENTIRE MANUAL before using this appliance. WARNING! This device is capable of high temperatures. If used without due caution it can constitute a safety hazard. The outer surface will become hot enough to cause very serious burns and the bean roaster has the potential to ignite flammable materials on, in, or near the roaster. The Hottop Coffee Roaster can be operated in such a way as to create a fire hazard by igniting the beans being roasted and/or the chaff (a by-product of the roasting process).
Table of Contents I - Important Safety Precautions ---------------------- 4 Selecting a Program ----------------------------------- 28 How To Install The Heat-guard Grills ------------------ 6 Roasting with a Program ------------------------------ 29 II - Emergency Bean Ejection -------------------------- 8 III - Coffee Roasting- A Brief History ----------------- 9 Copying a Program -------------------------------------- 31 Deleting a Program -------------------------------------- 31 You Are On Your W
I - IMPORTANT SAFETY PRECAUTIONS When using this electrical appliance, these safety precautions must always be followed: SAVE THESE INSTRUCTIONS in a safe place and REFER TO THEM OFTEN WARNING: Read and Understand All Instructions, Precautions, Labels and Warnings BEFORE Using This Coffee Roaster! Keep these instructions for future reference and be sure anyone operating the machine reads and understands them before allowing them to use the Coffee Roaster.
• Always leave at least eight inches of space around the Coffee Roaster on all sides for proper ventilation when operating and until it has cooled. Keep the machine away from flammable materials such as curtains, towels, walls, furniture, or any other materials Place on a heat-resistant surface when in use. Do not operate near combustible materials or liquids, nor near any pressurized spray cans. • Avoid touching moving parts. Never reach into the machine while it is plugged in.
Identifying a “2K” Hottop Coffee Roaster Model This manual is written for the KN-8828P-2K and the KN-8828B-2K. These can be easily identified by looking through the roasting chamber Viewing Window. On the rear wall of the roasting chamber, in approximately the three o’clock position, you will see the K-style sensor shown here.
This diagram represents most of the parts that are designed to be removed by the consumer for basic maintenance with the exception of the Heat-Guard Grills. 1 (see bottom of page 6 for heat-guard grill instructions) WARNING: Do not attempt further disassembly beyond what is shown here, or as required in Section VII.
II - EMERGENCY MANUAL BEAN EJECT SYSTEM IMPORTANT: The Emergency Eject mechanism is designed to be used in emergency situations only as described below. In normal operation the user should press the “EJECT” button on the control panel to get the beans out of the roasting drum and into the cooling tray. In certain emergency situations it may become necessary to manually eject the coffee beans from the roasting chamber.
III - Coffee Roasting- A Brief History It wasn’t that long ago that it was common for people to buy raw coffee beans from local stores and then roast these at home for fresh coffee. That was particularly true in rural areas that were removed from the small roasters found in larger city neighborhoods. At that time, roasting coffee was considered a normal part of everyday life and a part of many peoples’ cultural heritage.
IV - Introduction to the Roasting Process The changes that the coffee bean goes through during the roasting process are amazing. Those small, hard beans, when properly exposed to controlled heat, grow in size and change in color, becoming the source of one of the world’s most cherished beverages. The Hottop Coffee Roaster makes it easy to get the best from the coffee.
breaking toothpicks. Generally, once second crack really gets going the individual cracks occur with much greater frequency than the sounds during first crack. The beginning of second crack is an indicator that the coffee is nearly done and you should be ready to end the roast very soon. When second crack begins to diminish, most coffees are near the end of their preferred-flavor profile, and when second crack ceases the beans are on the edge of being ruined and are approaching the ignition point.
For your first batch select a variety that is easy to roast. Most any of the varieties from Central or South America will do fine. Guatemalan, Colombian, Brazilian, Bolivian, or Costa Rican are all good choices. These coffees have very loud cracks that are easy to recognize, and they are relatively inexpensive, so if anything goes wrong, you don’t have to feel too bad about discarding the beans.
VI - Coffee Roasting Color Samples 1 -These are “green,” raw coffee beans before adding them to the roaster. When looking at green beans you can get an idea as to their quality by the consistency of size and color of the beans. If at all, there should be very few beans that look dark, mottled, or have other defects like insect damage. Some varieties have more defects than others. 2 - These beans are at around 285 F. degrees (display temperature of 335 F.).
VII - Model KN-8828B-2K Color LCD Display Auto Coffee Roaster with Manual Control The KN-8828B-2K allows easy roasting of the coffee for new users, yet supplies complete manual control for those who become advanced in their roasting knowledge and are looking for a specific taste or roast level. Roast Profiles can be saved for later use as well. Physically, it is the same as our other model. The only difference is the user interface of the control panel.
CONTROL FUNCTIONS To the right of the display are five buttons that control KN-8828B-2K (buttons do not illuminate). POWER - START The largest button at the top of the display controls both “POWER” and “START.” Only one of these two choices will be illuminated in the LCD display at any given time so the button is used for this dual function. EJECT - This is always available during a roast. Use it to immediately stop the roasting process and send the beans into the cooling tray.
RANGE OF CONTROL ADJUSTMENTS Target Time Target Temperature 10:00 to 25:00 167 to 428 F. Main Fan Speed Five speeds. Each of the four bars represent 25%. When no bars are showing the fan is off. Heating Element Power Eleven selectable heating levels. Each bar represents 10% of the heating element’s power. When no bars are selected the heating element is off. TARGET TIME and REMAINING TIME During the actual roasting process the time display will countdown the remaining time in the roast.
Model KN-8828B-2K AUTO Mode WARNING: Read and understand this owner’s manual and all the safety precautions before following these step-by-step instructions! WARNING: Never leave the roaster unattended during a roast! The KN-8828B-2K gives the user the option to easily and quickly roast using an automatic mode. The “Auto” mode supplies a roasting curve that can begin with as few as three presses of a single button.
4 Target Temperature, Target Time, Fan Speed, and Heating Element Power can all be adjusted at any time during the roast. Use the SELECT arrow to choose a parameter, then use the CHEVRON arrows to change that parameter. CAUTION: When adding time or increasing the roasting temperature, care must be taken not to burn the beans.
Getting the Most From Your KN-8828B-2K The KN-8828B-2K allows the user to adjust the power of the heating element as well as the speed of the fan throughout the roast. This section is designed to show you how to use this control to more precisely tailor the roast. The information contained in this section will also interest the users of the KN-8828P-2K. Over the years, roasting theories concerning profiles have changed.
The roast used for the graph was done by programming the KN-8828B-2K for maximum time (25:00) and maximum temperature (428 F.). Using these parameters, start the roast as instructed on page 17. Many users have experimented with the temperature at which they add the beans to the roaster. In this roast the beans were dropped in at an the “Beep” signal at a temperature of approximately 167 F. on the display (1), as the red line indicates. You might try waiting until the display shows 200 to 225 F.
Just as you are entering first crack there is a chemical reaction going on in the beans called the Maillard Reaction. Chemical changes in the beans are actually creating heat- the beans are becoming exothermic. The sounds of first crack begins with a sound reminiscent of breaking small wooden sticks. It begins with a few clicks and then increases in frequency. As first crack becomes more active, the heating element should have already been turned down to around 50% (13).
VIII - Model KN-8828P-2K Programmable Roaster with LCD Display The KN-8828P-2K is a programmable roaster with many advanced features giving the user a lot of control over the roasting profile. It allows an easy, automatic mode that takes little user input to start. In addition to the Automatic mode, the KN-8828P-2K also gives the user the ability to create their own roasting profiles, thus modifying the roasting process to suit their tastes.
ACTIVE BUTTONS ILLUMINATED You will notice that in any given state of operation some of the buttons on the Control Panel are not illuminated. The advanced programming of the KN-8828P-2K assists the user by illuminating only those buttons which are currently active. For example, when you have added six “Pluses” during the roast you have reached the maximum number available and at that point the “+” button is no longer illuminated.
Hottop Coffee Roaster KN-8828P-2K AUTO Mode Read and understand this owner’s manual WARNING: and all the safety precautions before following these step-by-step instructions! WARNING: Never leave the roaster unattended during a roast! The KN-8828P-2K gives the user the option to roast using an automatic mode that operates much like the earlier versions of our roaster.
10 In the display’s Message Center you will now see “Preheat.” The roaster is coming up to temperature. The amount of time this process takes varies. 11 When it is time to add the beans, the machine will beep and the Message Center will show the “Add Beans” animation. Add the beans and the roast will progress automatically. 12 13 25 After the “Add Beans” animation ends the roaster goes into the “Roasting” mode and progresses through it’s roast.
Hottop Coffee Roaster KN-8828P-2K MANUAL Mode Roasting with Programs Read and understand the owner’s manual and WARNING: all the safety precautions, before using the manual Mode of the KN-8828P-2K! “Manual Mode” allows the user to control the roaster to create a roasting profile that they prefer. This mode offers a lot of flexibility and offers a powerful, yet easy-to-use interface. The following pages document the various ways to create, modify, and use the Manual Programs.
SEGMENT TEMPERATURE The temperature range for each segment which is available for programming varies, from lowest in the early segments to highest in later segments. This is reflected in the “stair step” appearance of the temperature bars in the LCD display.
SELECTING A KN-8828P-2K PROGRAM Before you can begin roasting with a Program you must select which Program to use. For your first roast we suggest trying “Program 0” which is the factory default Program. This will help you understand how Programs operate before attempting to create your own roasting profiles. Follow these directions to select a Program: Plug the machine into an appropriate outlet and the “POWER/START” button will become illuminated.
ROASTING WITH A PROGRAM - KN-8828P-2K WARNING: Never leave the roaster unattended during a roast! 1 Select a Program with which to roast as described on the previous page. If you have not yet created any additional Programs use “Program 0” which is the default Program when entering Program mode. After Selecting a program, begin the roasting process by pressing the green POWER-START button. 2 In the display’s Message Center you will now see “Preheat.
6 It is possible to adjust the temperature of an active segment during the roast. Use the + and - buttons to adjust the temperature. Either button can be held down to move through the adjustment range more quickly. If you reach either extreme in the temperature range for that segment, that particular button will no longer be available.
COPYING AN EXISTING PROGRAM - KN-8828P-2K If you would like to create a new Program it can be easier and a bit quicker to begin with one that is already created. Here is how to copy a Program and paste it into another Program slot: 1 Select the Program you wish to duplicate (see Page 24 for instructions on “Selecting a Program”) 2 Press SET/SAVE 3 Press SET/SAVE again. The LCD screen is now illuminated in green and the Program has been copied to memory, and is now ready to be Saved (pasted) .
Understanding Programs and Segments - KN-8828P-2K Now that you have a basic understanding of how a Program roasts coffee, you can begin to create and modify your own Programs. This section will help you understand the parameters of programming the KN-8828P-2K. This chart visually shows the eight Program Segments and the temperature range of each available for programming. You will notice that the chart resembles a staircase, with the steps rising in temperature as you progress along the roasting process.
A Sample KN-8828P-2K Program and It’s Roast For a better understanding on how a Program affects the roasting process we present this graph of an actual sample roast and the program that created it. Beans Used - - - - - Brazil Sierra Negra Amount of Beans - - - - - - 250 grams The red line represents the temperature readout as shown on the LCD display during the roast. The blue line indicates the programmed time.
Modifying a KN-8828P-2K Program Any Program (except Program 0) can be modified. Modification can be anything from changing a single entry (such as “Temperature” for “Segment 3”) to creating an entirely new program by modifying every parameter. The programming process described below is illustrated in this flow chart: Enter the “Program” mode and select the Program to be modified as described earlier. Press “SET/ SAVE.
PROGRAM NAME This next adjust allows you to change the Program’s name (indicated as *3 in the flow chart on page 34). This can be a three-character, alpha-numeric name you choose from these available characters: Capital letters from A to Z Numerals from 0 to 9 “_” to signify a blank To aid in understanding the Naming Procedure, refer to this flow chart: The first character in the Program’s Name is now blinking. Use the “+” and “-” to scroll forwards and backwards through the available list of characters.
Advanced Manual Control For those looking for a more precise control over their roasts there are methods that can be used to modify the roast profile while the coffee is roasting. You can use the program outlined below to learn how to manually control a roast. This procedure will take a bit of practice and experience because you will need to predict the end of first crack, but with time and practice this method can help achieve superior results.
IX - Cleaning and Care Roasting coffee can be a bit messy. The chaff that comes off the beans, bits and pieces of coffee beans, and stray beans themselves can get strewn about, in and out of the roaster. To create the best coffee possible, to ensure safe operation, and to extend the life of your Hottop Coffee Roaster, it is very important to do some regular maintenance and cleaning.
B. AFTER 5 TO 10 ROASTS 1- Drum Removal (Refer to diagram on page 7) NOTE: For all tasks related to disassembly or repair of the Hottop Bean Roaster, we urge you to refer to the Repair section of our website at www.hottopusa.com. There you will find photographic illustrations and detailed, step-by-step instructions to guide you. Chaff and other small particles will accumulate in the roasting chamber after roasting. Large amounts of this dry material can ignite and start a fire inside the roaster.
holes in the front plate and that the drum shaft goes into the hole in the center of the front plate. Hold the Bearing Plate (8) in place and verify that it is fully seated on the front of the machine and that the alignment pins (11) are in their locating holes. c. While holding the Bearing Plate (8) aligned on the locating pins, replace the four screws (7) by hand and screw them in by hand until seated.
X - Roasting styles overview This section contains a brief explanation of the various roasts you can achieve with the Hottop Coffee Roaster, and will give you a general idea of how roast level affects taste. There are numerous factors that affect the roast level at a given time or Program setting on the machine. These can include bean age, moisture level, bean size, line voltage fluctuations, and many more. At some roast levels as little as thirty seconds or even less can have a big effect on taste.
will see large drops of oil appear on the surface of nearly all the beans. The smoke produced now is quite dense, and has a sharp, pungent smell. The coffee usually acquires a similar sharp taste, with the flavor being predominantly “roast” and less that of “coffee.” Some people do enjoy this “French” style but if you are purchasing quality beans this level of roast removes a lot of the taste for which you have paid.
roast” listed? No. That is because there is no such thing– espresso is a beverage, not a roast. With your Hottop Coffee Roaster you can now roast coffee any way you like. Be bold! Be daring! Experiment! There are tastes in coffee that are amazing, but many are lost if the coffee is roasted too dark. For drip coffee, try roasting some quality Colombian and stopping the roast about fifteen to thirty seconds after first crack ends, and well before second starts.
As you learn the coffees you are using and how they roast, you can adjust the roast settings and adjustments so that you can get the roast you want. Day to day, roast times and temperature adjustments will vary even if you use the same exact amount of beans, from the same batch of green coffee, and roast at the same exact level. For that reason, to achieve the taste you want, you always need to carefully monitor your roasts to avoid incorrectly roasted coffee.
XI - Tips and Hints Storing Coffee There has long been a debate as to the best way to store coffee. Green coffee is easy to store. Left in a cloth bag in a cool, dark, dry place, green coffee will keep for as long as a year with little difficulty. Placed in the back of a kitchen cabinet away from the dishwasher or stove will probably be just fine for quite some time. Cloth bags are best as they let the coffee breathe and they eliminate the possibility of condensation.
Roasting decaffeinated coffee is more difficult than roasting “regular” coffee. The decaffeination process makes the color of the beans more difficult to discern and the cracks occur in much reduced numbers. For this reason, we highly recommend learning to roast with “regular” coffee before attempting to roast decaf. CAUTION: Be very careful when trying to do very dark roasts. Second crack marks a time when you have to be especially attentive.
You may wish to practice with some plain, cool water first, and please be careful not to burn yourself with the hot coffee! It is sort of like a powerful kiss, but take care to avoid drawing coffee into your throat. When tasting coffee this way pay attention to how it tastes at the very first, immediately after it coats your mouth, and how it tastes after it is swallowed. Repeat this a few times until you get an idea of how it tastes.
XII - Resources Hottopusa.com For specific information not contained in this manual visit our website: www.hottopusa.com There you will find a lot of information including a troubleshooting guide, and an FAQ filled with lots of hints and tips. There is also a complete repair guide should you decide to undertake repairs on your own. Be aware that you should always consult with us before attempting repair on any machine still under warranty.
PROGRAM NAME: Segment # 1 PROGRAM #: 2 3 4 DATE: 5 TOTAL TIME: 6 7 8 Temperature Time Fan PROGRAM NAME: Segment # 1 PROGRAM #: 2 3 4 DATE: 5 TOTAL TIME: 6 7 8 Temperature Time Fan PROGRAM NAME: Segment # Temperature Time Fan 48 1 PROGRAM #: 2 3 4 DATE: 5 TOTAL TIME: 6 7 8
Roast Number:________________ Coffee Used: Date:____________________ Time:_______________ First Crack Begin: First Crack End: Program Name Temp/Time Second Crack Begin: Ambient Temperature Roast Style Roasting Notes: Total Roast Time: manual / auto eject (circle one) Cupping Notes: Roast Number:________________ Coffee Used: Date:____________________ Time:_______________ First Crack Begin: First Crack End: Program Name Temp/Time Second Crack Begin: Ambient Temperature Roast Style Roasting N
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Hottop Coffee Roaster Owner’s Manual This manual covers the following models: KN-8828B-2K and KN-8828P-2K Manufactured by Chang Yue Industrial Corp.® No. 170, Chung Lun, Chung Sha Tsun, An Ding Shian Tainan, Taiwan Tel: 886-6-593-2311 Fax: 886-6-593-4834 Hottop USA 25 Katelan Court Cranston, Rhode Island 02921 Fax: (401) 946-0268 Email: hottop@ms12.hinet.net Email: hottop@hottopusa.com www.hottop.com.tw 52 www.hottopusa.
