News
The Manual Espresso Machine
So, if the barista has to grind, tamp, and extract the espresso shot on their own, as well as steaming the milk and flavoring, why is the modern cafe espresso machine still called "Semi-Automatic"? And why is there even a designation for "Super Automatic"?
There still exist a few classic "manual" espresso machine manufacturers today. It is considered a sign of barista mastery to be able to extract good ristretto shots using the manual machine.
For an example of the manual machine, check out the 16 cup La Pavoni Pro Manual. The internal design for the La Pavoni has barely changed since the 30s, although La Pavoni does continue to update the components to keep up with modern machining techniques. The basic theory is this: the boiler inside the machine gets up to about 1.5 bars of pressure, which is sufficient both to steam and provide a small amount of pressure at the group (the water spout) of the espresso machine. Since espresso requires nine bars of pressure, however, the internal pressure in inadequate. This is where the lever comes in; the lever works an internal piston which presses the water that has been "loaded" into the internal chamber by pulling it up into its set position, and it is up to the barista to apply the correct amount of force to the lever so that the shot is not overextracted, but not just made watery either.
This is ideal for pulling the ristretto, or short espresso, which is coveted among coffee fanatics and baristas everywhere.
Modern cafe espresso machines use push-buttons and a motor that applies a uniform amount of pressure at all times. This significantly reduces the amount of training time required for the job, and also allows those with access to the internal components to standardize shot length, and how much water is pulled through.
Unfortunately we don't have a manual in the truck, since they are generally considered part of the home "pro" consumer market now, but if you ever get the chance to try a manual shot I would highly encourage it.
Take care everyone!
Seth Kelter
Owner/Operator
Candide Tactical Coffee Unit
So, if the barista has to grind, tamp, and extract the espresso shot on their own, as well as steaming the milk and flavoring, why is the modern cafe espresso machine still called "Semi-Automatic"? And why is there even a designation for "Super Automatic"?
There still exist a few classic "manual" espresso machine manufacturers today. It is considered a sign of barista mastery to be able to extract good ristretto shots using the manual machine.
For an example of the manual machine, check out the 16 cup La Pavoni Pro Manual. The internal design for the La Pavoni has barely changed since the 30s, although La Pavoni does continue to update the components to keep up with modern machining techniques. The basic theory is this: the boiler inside the machine gets up to about 1.5 bars of pressure, which is sufficient both to steam and provide a small amount of pressure at the group (the water spout) of the espresso machine. Since espresso requires nine bars of pressure, however, the internal pressure in inadequate. This is where the lever comes in; the lever works an internal piston which presses the water that has been "loaded" into the internal chamber by pulling it up into its set position, and it is up to the barista to apply the correct amount of force to the lever so that the shot is not overextracted, but not just made watery either.
This is ideal for pulling the ristretto, or short espresso, which is coveted among coffee fanatics and baristas everywhere.
Modern cafe espresso machines use push-buttons and a motor that applies a uniform amount of pressure at all times. This significantly reduces the amount of training time required for the job, and also allows those with access to the internal components to standardize shot length, and how much water is pulled through.
Unfortunately we don't have a manual in the truck, since they are generally considered part of the home "pro" consumer market now, but if you ever get the chance to try a manual shot I would highly encourage it.
Take care everyone!
Seth Kelter
Owner/Operator
Candide Tactical Coffee Unit