SAFE USE & MAINTENANCE
Customer safety and satisfaction is priority.
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COFFEEJACK™ has undergone years of vigorous research and development resulting in a robust design, capable of withstanding high pressure and temperature. The correct use of COFFEEJACK™ will ensure longevity of components and the ability to produce great espresso for years to come.
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*FAILURE TO COMPLETE THE PROCEDURES BELOW COULD RESULT IN PRODUCT DAMAGE *
Ensure the Basket is Fully Secured
The basket must complete a full 1/4 rotation before locking in its useable position. This is the point at which the basket will no longer rotate anti-clockwise.
Using COFFEEJACK with a partially locked basket could cause damage to the bayonets and/or compromise sealing required for high pressure extraction.
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Ensure Grind Level & Tamp Force is Correct
GRIND LEVEL
The grind level must be approx. 5-7mm from the top edge of the basket rim, this will prevent over restricting the basket. It will also avoid damage whilst attaching the basket to the main body.
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TAMP FORCE
Tamping too hard will over restrict the basket. This could cause poor extraction or component damage.
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Pre-Infuse before Extraction
This important step prevents 'channeling' which can result in a poor quality extraction.
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How to Pre-Infuse: Pump down and hold for 2-3 seconds. Repeat this process until espresso begins to exit the bottom of the basket. Then, increase the pump rate and there will be a noticeable increase in back pressure. Slow, controlled pumps from this point forward will create the perfect espresso.
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Do not use COFFEEJACK with fragile or unstable mugs/glasses without the use of a COFFEEJACK Elevation Stand. Failure to do so could result in mug/glass damage or spillage of boiling water. Our elevation stand removes all loading force from mugs/glasses and also enables easy storage (available on website).
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Do not over-restrict the basket. This could result in seal failure or component damage when repetitively exceeding the cracking force of the Pressure Relief Valve.
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Allow glass to momentarily cool after extraction to prevent injury.
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Do not travel without protecting COFFEEJACK in a safe and secure case.
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Fully remove handle before filling with hot water to prevent spillage.
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Always use COFFEEJACK with the funnel in position. Failure to do so could result in spillage of boiling water.
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Do not damage the sealing edge of the basket. The smooth surface is essential to maintaining a high pressure seal.
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Do not fill water above the bottom edge of the water funnel.
Do not hold the glass whilst securing and/or removal of the basket.
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Pump only when COFFEEJACK is rested securely on the rim of a strong mug/glass or Elevation Stand (available on website).
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Allow COFFEEJACK to cool before trying to secure and/or remove the basket. Failure to do so could result in injury from residual hot water within the grind.
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Keep away from children.
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Avoid leaving the machine unattended during use.
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Inspect the machine before use and make sure there is no damage.
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If the pressure regulator valve activates (audible sound), reduce pump speed to lower extraction pressure.
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Only pour water in the reservoir. Never press the piston if the portafilter is not properly locked and tightened.
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Do not try to remove the basket during usage.
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The machine should be used in conditions between 5°C and 50°C (41°F and 122°F), and under normal atmospheric pressure conditions (from 0 to 3000m altitude).
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Do not use the machine for any other purpose than instructed. COFFEEJACK would decline all responsibility in event of misuse.
