The OXO Brew Conical Burr Coffee Grinder with Integrated Scale is a sophisticated appliance designed for home coffee enthusiasts seeking precision and consistency in their grind. Its primary function is to grind whole coffee beans into various consistencies, from fine for espresso to coarse for French press, while accurately measuring the output using an integrated scale.
Function Description:
The grinder features a conical burr system, which is preferred for its ability to produce a uniform grind, minimizing heat buildup that can degrade coffee flavor. The integrated scale allows users to grind coffee by weight, ensuring precise dosing for optimal extraction. This eliminates the need for a separate scale, streamlining the coffee preparation process. The grinder offers multiple grinding modes: "Cups Mode" for grinding a specific number of cups, "Grams Mode" for grinding a precise weight in grams, and a "Manual/Portafilter Mode" for grinding directly into a portafilter or other container without scale measurement.
Usage Features:
- Grind Size Selection: A grind size selector, located on the bean hopper, allows users to choose from 15 settings, ranging from 1 (fine) to 15 (coarse). This enables customization for various brewing methods, including espresso (fine/1-5), pour over/drip coffee (medium/6-10), and French press/cold brew (coarse/11-15). It's recommended to adjust the grind size while the motor is running if beans are in the hopper, to prevent jamming.
- Integrated Scale and Dosing: The built-in digital scale is a key feature, providing accurate measurement of ground coffee. In "Cups Mode," the grinder defaults to 8 grams per 5 fl oz cup, based on the Specialty Coffee Association (SCA) Golden Cup Standard. A "Strength Adjuster" allows users to modify this default, adding or subtracting 1 gram per cup with each click to the right or left, respectively. In "Grams Mode," users can select a desired weight between 1 and 125 grams. The grinder automatically stops once the target weight is reached.
- Zeroing/Taring Function: The scale can be zeroed or tared to account for the weight of the grounds container or if a different container is used. This ensures that only the weight of the coffee grounds is measured. The process involves placing the container on the base, pressing and holding the OXO button until a 3-second countdown finishes, and releasing the button when the display shows "0."
- Hopper Design: The bean hopper includes a "trap door" feature, which keeps beans securely inside when the hopper is removed, preventing spills and allowing for easy bean changes or cleaning. The hopper lid helps keep beans fresh.
- OXO Button/Dial: A central OXO button/dial serves multiple purposes: it's used to select the desired number of cups or grams, to start and stop grinding, and to switch between grinding modes. Pressing and holding the button for 1 second enters the mode menu, where twisting and pressing the dial selects the preferred mode.
- Digital Screen: A clear digital screen displays the selected grind amount, current weight of grounds, and error messages.
- Safety Features: The grinder is designed with safety in mind, including a polarized plug to reduce electric shock risk and warnings against immersing the appliance in water. It also features an auto-shutoff mechanism if the motor overheats, displaying a 30-minute countdown before it can be used again.
Maintenance Features:
- Cleaning: Regular cleaning is crucial for optimal performance. The grinder should always be unplugged before cleaning.
- Hopper and Grounds Container: The bean hopper, grounds container, and stainless steel plate are hand-washable. They should be rinsed and dried thoroughly.
- Burrs and Chute: The upper burr is removable for cleaning. To remove, lift the metal burr handle, twist counterclockwise, and pull straight up. A small bristle brush should be used to clean the burrs and grounds chute, ensuring they are free of beans and debris. Water or other liquids should not be used inside the grinder/burrs.
- Exterior: The exterior of the grinder can be wiped clean with a soft, damp cloth.
- Overheating Protection: The grinder has a built-in cooling mechanism. It's recommended to allow the grinder to cool for at least 2 minutes after each use and not operate it for longer than 4 minutes at a time to prevent overheating. If overheating occurs, the grinder will stop, and a 30-minute countdown will appear on the display, after which it can be used again.
- Fresh Beans: Using fresh coffee beans is recommended, as old or dry beans can create static, causing dust to stick to the grinder's walls. Beans should not be stored in the bean hopper for extended periods.
- Troubleshooting: The manual provides a comprehensive troubleshooting guide for common issues such as the grinder not starting, stopping mid-cycle, being louder than normal, clogging, or display errors. Solutions often involve checking the bean hopper attachment, zeroing the scale, inspecting for foreign objects in the burrs or chute, or allowing the motor to cool.
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