Ratio Eight User manual
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RATIOCOFFEE.COM
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The Eight was designed
to make your coee brewing routine
something you look forward to.
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01 Important Safeguards
02 Detailed Instructions
03 The Brewing Phases
04 Troubleshooting
05 Cleaning
06 Maintenance
07 5-Year Limited Warranty
08 Disclaimer and Limitation of Liability
CONTENTS
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When using electrical appliances, basic safety precautions should always be followed to prevent the risk of
fire, electric shock, burns, or other injuries and damages.
READ ALL OPERATING AND SAFETY INSTRUCTIONS CAREFULLY.
• Do not touch hot surfaces. The top of the unit will get hot when brewing. Use the side arms of the
machine to move the unit.
• To protect against fire, electrical shock, and injury, do not immerse cord, plug, or appliance in liquid.
• Unplug from outlet when not in use, and before cleaning. Allow it to cool before putting on, or taking
o parts and before cleaning the appliance.
• Machine must be turned o before unplugging from the outlet.
• The voltage in your home should correspond to the voltage indicated on the bottom of your appliance.
• Close supervision is necessary when any appliance is used by or near children.
• Do not operate appliance with a damaged cord or plug.
• Do not operate appliance after the appliance malfunctions, or has been dropped or damaged in any
manner.
• If the unit is damaged or dropped, return to Ratio for service.
01 IMPORTANT SAFEGUARDS
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• The use of accessory attachments not recommended by Ratio may result in fire, electric shock or injury.
• Do not use outdoors or in a damp area. Do not place the appliance on a hot surface.
• Do not let the cord hang over the edge of a table or counter, or touch hot surfaces.
• Do not place on or near a hot gas burner, electric burner, or in a heated oven.
• To disconnect the appliance, remove plug from electrical wall outlet. When the carafe is removed from
the base of the unit, the heating element cannot be turned on.
• Do not use this appliance for anything other than its intended use.
• Place the appliance on a level surface.
• Do not operate the appliance without water.
• Do not use hot water. Only fresh, cold water should be used to fill the water tank.
• Do not use a cracked carafe, or a carafe with a loose or weakened handle.
• Do not clean any part of the machine or carafe with harsh detergents, steel wool pads or other
abrasive materials.
• Do not place the carafe in the dishwasher. Hand wash only.
• The carafe is designed for use with this appliance. It must never be used on a range or stove top.
• Do not hit the showerhead with the carafe, as it may damage the carafe.
01 IMPORTANT SAFEGUARDS
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• A short power supply cord is provided to reduce the risk resulting from becoming entangled in or
tripping over a longer cord.
• Extension cords are available and may be used if care is exercised in their use.
• If an extension cord is used, (1) the marked electrical rating of the extension cord should be at least
as great as electrical rating of the appliance, and (2) the longer cord should be arranged so that it
will not drape over the counter or table top where it could be pulled on by children or tripped over
unintentionally.
01 IMPORTANT SAFEGUARDS
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SAVE THESE INSTRUCTIONS.
YOU MIGHT NEED THEM.
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Fill the tank.
Fill to desired level with fresh, cool water. If using Ratio carafe to transfer water, ensure it is free of coee
residue from previous brews.
Choose your filter.
The Ratio carafe was designed to use Chemex paper filters or our custom perforated stainless steel filter,
the Ratio Kone.
Add coee grounds.
Add freshly ground coee to the filter. We recommend starting with 14 level tablespoons, or 70 grams for a
full batch. For a half batch, add 7 level tablespoons, or 35 grams. When placing the carafe back in the Ratio
Eight, make sure you tilt the carafe so that you do not hit the showerhead.
Begin the brewing cycle by pushing the start button.
You can preheat the carafe with hot water from your sink, a kettle, or by running a brew cycle of any size without coee.
Alternately, you can fill the tank beyond your intended batch size and stop the brew cycle when the tank reaches the
desired level by touching the button. If you run more than intended, just top o the tank as needed.
02 DETAILED INSTRUCTIONS
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02 DETAILED INSTRUCTIONS
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Cups/Tank Marking Water (oz/g) Grams of Coee Tablespoons of Coee (approx)
3 17/500 26 5
4 22/650 35 7
5 27/800 44 9
6 33/975 53 11
7 38/1125 61 12
8 44/1300 70 14
Suggested brew ratios of water to ground coee
02 DETAILED INSTRUCTIONS
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