Bezzera Duo MN Dual Boiler Espresso Machine – V2, Double PID

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Bezzera Duo MN Dual Boiler Espresso Machine – V2, Double PID

Overview

If temperature control and stability are what you’re looking for, your search is over! The Bezzera Duo MN uses two separate PID’s to control the temperature of the coffee boiler and the water/steam boiler. We caught a first-look of the DUO at HOST Milan 2017, and we were thoroughly impressed with the thought Bezerra has put into this beginner dual boiler espresso machine that will make distinct flavor profiles with ease.

The Bezzera Duo MN equips the DUO with a beautiful 3.5″ LED touch display that allows the user to program a number of functions with ease. Adjusting the temperature between the two boilers is crystal clear, as well as checking the water levels. Other programmable features on the touchpad include:

  • pre-infusion, priority heat up between boilers
  • auto on/off settings
  • switch between direct plumb and reservoir
  • automatic backflush program
  • maintenance reminders
  • selection of language
Independently Controlled Boilers

Two separate PID’s control the .45 L coffee boiler and 1L water/steam boiler. You can even program through the touch display which boiler you’d prefer to heat up first!

E61 Grouphead

The E61 grouphead ensures consistent water stability. Hot water circulates from the boiler through the grouphead and back to keep the grouphead and your portafilter nice and hot. Lever next to the grouphead activates a microswitch which turns on the pump to draw water through the coffee grinds.

Multi-Directional Steam and Hot Water Wand

Allows for more flexibility. Joystick controls for steam and hot water wands give instant on/off operation as opposed to knobs that you must turn clockwise / counter-clockwise. Each has a rubber cover to prevent fingers from burning.

Wooden Elements

Less plastic is always a bonus in our eyes. The Matrix is designed with wooden handles on not only the portafilter but the joysticks and lever as well.

Three Way Solenoid Valve

Allows quick removal of portafilter after espresso extraction by relieving the pressure built up in the grouphead. The result is a dry puck of coffee you can easily knock out of the portafilter.

Rotary Vane Pump and Motor

Produces a quieter extraction vs a vibratory vane pump. Situated underneath tank/reservoir and adjustment can be made from underneath the espresso machine.

Very Large Water Tank

A 4 L water reservoir means fewer refills for higher volume use, low water levels are detected by an electronic sensor and are indicated on the touch display. Refilling occurs from the top of the machine by lifting up the lid on hinges.

Passive Cup Warmer

Able to hold up to six cappuccino cups and passively warm them to ensure the coffee remains hot.

Automatic Water Refill to Boiler

Automatic plus safety cutout to prevent machine damage.

Accessories included:
  • Single and Double spout portafilter w/ wood handles
  • 1-cup & 2-cup filter baskets
  • Blind filter basket
  • Plastic tamper
  • Plastic scoop
  • Grouphead cleaning brush
  • Reservoir plug
  • 1.5-meter stainless steel braided hose
  • Instruction manual.
  • Measurements: 13″ Width  x 18.5″ Depth x 16 5/8th H with rails (and 15″ H without rails)
  • Cup Warmer: 9 3/4″ x 9 3/4″
Weight 103 lbs
Dimensions 25 × 25 × 25 in
  1. Note from Bezzera dated 03/25/202120 AMP plug will continue to be used on Matrix and Duo 110 Volt version because the safety standards do not allow to use an undersized plug compared with the power consumption reported in the machine data label.

    We will add an advice into the machine box where we explain to the final user that it is possible to use the machine with a 15 Amp plug adapter only setting a boiler priority.

    We would like to inform you that, according to our tests, the major difference in the machine performance, setting or not the boiler priority, is in the warm-up period

    We faced not big performance differences in the coffee thermostability and water/steam services, in the normal machine use, giving a priority to a coffee or steam boiler

     

    WARM-UP TIME (no priority)

    Coffee service: 3:20 min

    Hot water / steam service: 6:45 min

     

    WARM-UP TIME (coffee boiler/service boiler priority)

    Coffee service: 7:10 min

    Hot water / steam service: 10:10 min

     

    TEST CONDITION:

    Power supply: 110V

    Frequency: 60 Hz

    Room temperature: 22°C

    Coffee boiler set point: 92°C

    Service boiler set point: 125°C

     

    We would like also assure you that there is not safety problem with the Matrix and Duo machines sold until now.

    15 AMP plug and cable are designed to be used with 15 AMP in a continuous way and they admit pick of current until around 20 AMP. During our tests we have recorded 17,76 AMP (as maximum current) only in the 3:20 minutes of the warm-up time (when both boiler heat up together).

    During the coffee brewing the service boiler heating element is disabled and when the machine is not used, thanks to the PID controls, only impulses of current are given to the heating elements.