Jura Giga W3

The Jura Giga W3 Professional is a super-automatic espresso machine designed to handle a high volume of drink production.

Jura Giga W3 Professional
Manufacturer: Jura-Capresso
Model Name: Giga W3 Professional
Type: Super-Automatic

Machine Description

Designed with state-of-the-art coffee technology, Jura’s Giga W3 is an office coffee system with the style and elegance that are the hallmarks of the Jura brand. With a massive 169oz. water tank and 2.2lb bean hopper, the Giga W3 can safely brew up to 120 beverages per day and is pre-loaded with 43 customizable specialty drink options. Dual pumps and thermoblock heaters allow the Giga W3 to produce two specialty milk drinks with the push of a button. Automated rinse and descaling programs keep maintenance hassle free and the full color TFT (Thin Film Transistor) display makes navigating and programming your preferred specifications simple and intuitive.

With 31 one-touch drinks and 12 barista specialties, the menu on the Giga W3 offers a massive selection of beverage options to accommodate even the most particular coffee drinker. Each drink can be further customized with variable coffee dosage, length, and temperature; milk volume can also be adjusted when brewing one-touch specialties. Your favorite 8 choices can be assigned to the programmable buttons on the front panel while the remaining options can be selected from the easy to navigate menu on the TFT display. The main menu screen and customized beverage settings can be assigned to specific users and the drink specialties can be assigned unique names on a per-user basis.

Coffee is ground fresh for each beverage you prepare by a professional high performance grinder. The cutting angle inside the grinding chamber has been perfected and in conjunction with the wear-resistant ceramic disc burrs helps to ensure precise and consistent grounds for years. Adjustment of the grind fineness is handled electronically through the menu on the TFT display. Pre-ground coffee can be loaded directly into the brew group on a per-drink basis via the bypass doser. This feature is particularly useful for decaf drinkers given the massive capacity of the bean hopper.

Both the coffee/milk spout and the hot water spout can be programmed with soft white or amber illumination while brewing. Hot water is dispensed through its own dedicated spout and can be programmed to one of three temperature settings. Each spout can also be adjusted to accommodate cups of varying sizes. Rapid brewing and steaming are made possible by a pair of thermoblock heating systems. The milk frothing system uses an electronically controlled, geared stepper motor to heat and froth milk. The stepper motor allows for variable air intake in order to produce milk foam of varying texture that ranges from dry dense foam for Flat Whites to rich cream foam for Lattes.

The high volume water reservoir holds up to 5 liters (169oz.) and can be fitted with an over-sized CLARIS Pro Blue water filter. Up to 1kg (2.2lbs) of beans can be stored in the bean hopper while the freshness of your coffee is protected by the aroma preservation cover. You can prepare up to 40 drinks before having to empty the internal dregs drawer located behind the drip tray.

Cleaning & Maintenance

Cleaning Coffee System

The coffee brewing system can be rinsed at any time through the maintenance menu of the machine. This does not need to be done on a particular schedule, because the machine should automatically prompt you when to complete the cleaning cycle. It is, however, necessary to run the cycle when the machine prompts you and should not be neglected. If this maintenance cycle is neglected unpleasant flavors can develop in the brewed drinks. The recommended cleaning product for this cycle is Jura-Capresso 2-Phase Cleaning Tablets.

Rinsing Milk System

A rinse of the milk system should be completed any day that the machine is used to make a milk based drink. The dual spout milk dispensing system must be cleaned regularly with Jura Milk System Cleaner in order to maintain proper function. Depending on how the machine is programmed, the machine may not automatically prompt you to complete this cycle.

Dual Spout Cleaning

The dual spout assembly must be taken apart for cleaning any day that the machine was used to make milk based drinks to maintain machine function and keep the parts sanitary. Instructions for cleaning the dual spout can be found in the document below.

Dual Spout Cleaning Instructions

Changing Water Filter

This machine uses a CLARIS Pro Blue water filter which should be changed every 100 liters of water, or every two months; whichever comes first. Instructions for activating and installing this filter can be found on pp.45-46 of the machine manual. Use of this filter means that you do not have to descale the machine.

Descaling

The machine will automatically prompt you to descale. Descaling is not required if the Clearyl Blue filter is installed in the machine. The only descaling product that should be used is Jura-Capresso Descaling Tablets. The frequency of descaling will depend on the hardness of the water in the machine. Instructions for descaling the machine can be found on pp.48-50 of the machine.

Troubleshooting

No Crema or Bad Tasting Shots

Typically, issues with crema or the flavor of the shot do not indicate a malfunction of the machine. Instead, this indicates that an adjustment needs to be made in the brewing process or that different beans need to be used.

The type of bean that is being used is particularly important for super-automatic machines, because the built in burr grinders only accept certain types of beans. Another consideration is the roast of the bean, which greatly influences how much crema can be produced, as well as the flavor of the shot. Super-automatic machines are not compatible with oily, caramelized, or flavored beans. Properly stored and recently roasted beans are best. You can find more information on why bean selection and storage is important for super-automatic machines by watching the video below.

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5 Things New Super Automatic Espresso Machine Owners Should Know

Appropriately adjusting the grinder is also important. Poor shots can also be the result of incorrect grind settings.

1. If the shot is too bitter:
   1. The grind is set too fine. Try adjusting the grind to a coarser setting, typically indicated by a large dot symbol or higher number.
   2. If applicable, the aroma setting is set too high. Lower the aroma setting so that less coffee is ground per shot.
   3. The beans being used are over-roasted, and a lighter roast is needed.
2. If the shot is too sour or weak tasting:
   1. The grind is set too coarse. Try adjusting the grind to a finer setting, indicated by a lower number. Whenever moving the grind to a finer setting it is important to make minor adjustments, and to only adjust the grinder while in operation.
3. If there is little crema:
   1. The beans are probably stale and fresher beans need to be used.
   2. The grind setting does not match the drink that is being made. Smaller drinks such as an espresso require finer grind size; larger drinks such as a longo require a coarser grind.
   3. Oily or dark roasted beans are being used. These beans are not compatible with the unit, and are not suitable for espresso brewing. The oils and chemicals that are needed to produce a rich crema have been roasted out of the bean. Switch to a drier/lighter roast.
4. Keep the machine properly cleaned and maintained for good tasting shots. Your grinder may need to be cleaned or calibrated, or you may need to descale your machine to remove any unwanted residues or flavors.

Flow Issues

Milk Flows Poorly/Spits

If the milk spout in flowing incorrectly or milk is spraying out then the dual spout is dirty and needs to be cleaned. Run a milk circuit cleaning cycle and disassemble the spout for cleaning.

Poor Coffee Flow

There are a couple of different reasons the coffee could be flowing slowly.

1. The coffee grind is set too fine, and the fine coffee particles are blocking the flow of water. Try adjusting the grind to a coarser setting.
2. The Clearyl filter is blocking the flow of water, and may be due for replacement.
3. There is scale buildup in the system and the machine should be descaled.

Grinder Issues

If the machine is not recognizing that the bean hoppers are empty, or if the machine gives a "Fill bean container" error even though the hoppers are full then the grinding mechanism needs to be cleaned. Instructions for cleaning the grinding mechanism can be found on p. 50 of the machine manual.

Empty Drip Tray Won't Clear

If the "Empty drip tray" error will not clear then the metal contacts on the drip tray are dirty or wet. Wipe the contacts off and dry them thoroughly before reinserting the tray into the machine.

Error 2

The machine was exposed to cold or freezing conditions, and the machine will not operate until the machine has reached room temperature.

Diagrams & Manuals

Jura Giga 5
Electrical Diagram:	Not Available
Hydraulic Diagram:	Not Available
Machine Manual:
Parts Diagram:	Not Available
Service Manual	Not Available
Startup Guide:	Not Available