GETTING STARTED

PULLING A SHOT

UNBOXING YOUR FORGE

• When receiving your Forge, it’s ready to use out of the box.

• To assemble the tripod stand, insert each leg, press & twist. 

• Don’t remove the grease on the piston o-rings. This grease is DOW 111 food-safe and helps to keep the piston traveling smoothly.

• There are 2 spare o-rings included with your Forge, located inside the double basket – replace as needed. 

•  To clean we suggest using mild dish soap.

APPLYING PRESSURE

Start by placing your dominant hand on top of the t-handle

Place your non-dominant hand on top of your dominant hand

Then apply pressure straight down on the piston, leaning your body weight into the Forge 

BASIC ROUTINE

STEP ONE

Pull out the piston and unscrew the lockring (slim version of handled portafilter)

STEP TWO

Place Forge on top of kettle, if preheating, & start boiling water.

STEP THREE

Weigh out between 16-19g of coffee beans

 

 

STEP FOUR

Grind coffee into 58mm basket & tamp.

 

 

STEP FIVE

Remove Forge from kettle and screw brew basket on to Forge using lock ring.

STEP SIX

Set Forge on tripod stand & pour boiling water into the cylinder & fill to the top.

STEP SEVEN

Insert piston and apply downward pressure ramping up to 130psi & hold until all water is pressed out, this should take roughly 25-40 seconds. If the shot runs too fast adjust your grinder to a finer grind setting & if too slow adjust to a more coarse grind.


PRESSURE PROFILING

PRESSURE PROFILING

Straight 9 bar shot – Similar to most coffee shops

Pour water into the cylinder until it is full

Insert piston and quickly ramp up to 9 bar (130 psi)

Hold at 9 bar until the handle is brought all the way down or stream color noticeably blondes

Profile 1 – This profile works great for any coffee, especially traditional dark roast. (You will need to grind a touch finer than using the same coffee on Profile 1.)

Pour water into the cylinder until it is full.

Insert piston and slowly increase to 9 bar (130 psi) over 5 – 7 seconds. Cut when stream color noticeably blondes or you hit your target weight.

Profile 2 – Long Pre-infusion – Works best for light roasted coffees, but can be used on other medium roasts as well. You will need to grind much finer than using the same coffee on Profile 1.

Pour water into the cylinder until it is full

Insert piston and slowly ramp to 3 bar and hold for 10-15s

Steadily increase to 9 bar the remainder of the shot.

(Optional) Decrease pressure back to 6bar only to keep the flow rate from going too fast, approximately 20-40s for this range. Don’t worry about drawing this phase longer than profile 1, a longer extraction is needed for some coffees.

Cut when stream color noticeably blondes or you hit your target weight

The biggest advantage of the Forge is being able to pull shots with Profile 2. These shots are extremely well balanced and can be high in body as well depending on the coffee. With Profile 1 or normal pump machines, coffees roasted very light will usually taste quite sour and so are usually not recommended for espresso. Have fun profiling!

For further theory on how pressure profiling works, please see this thread on Home-Barista.com

 

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