Coffee Setup Guide

De'Longhi Dedica Duo Upgrade Guide

The Dedica Duo (EC890M) ships as a forgiving pressurized-basket starter with no built-in grinder. The biggest quality gains come from moving off the dual-wall baskets and dialing in puck prep - but everything must be 51mm, and this is a thermoblock machine, so group-service parts and backflush kits don't apply. Upgrade in the order below and confirm De'Longhi/SMEG 51mm fit on every part.

Affiliate disclosure: this page contains affiliate links. If you buy through them we may earn a commission at no extra cost to you. We have not physically tested these products; all compatibility analysis is based on manufacturer specifications and publicly available listing data. "Seller-claimed" means a marketplace listing asserts the fit; it is not manufacturer-confirmed. Verify size against your machine before purchase.

  1. 1

    Filter basket

    Essential

    Swapping the stock pressurized dual-wall basket for a single-wall 51mm basket (e.g. IMS-style) unlocks real extraction, flavor clarity, and control instead of artificial crema.

    Only worthwhile alongside a fine-capable grinder; pair with better puck prep.

    51mm Espresso Filter Basket, Double 2-Cup Stainless Steel Portafilter Basket, Compatible with De'Longhi Dedica EC680 EC685 ECP Gevi Casabrews 51mm, Pressurized Dual-Wall,14-18g Capacity
    51mm Espresso Filter Basket, Double 2-Cup Stainless Steel Portafilter Basket, Compatible with De'Longhi Dedica EC680 EC685 ECP Gevi Casabrews 51mm, Pressurized Dual-Wall,14-18g Capacity
    Fits the 51mm group seller says it fits
    Check price on Amazon
    See all filter baskets for the De'Longhi Dedica Duo →
  2. 2

    Bottomless portafilter

    Recommended

    A 51mm bottomless (De'Longhi/SMEG-compatible) exposes channeling and lets you diagnose distribution problems that a spouted portafilter hides.

    Verify the listing names a Dedica/EC-family 51mm fit, not just '51mm'.

    Normcore 51mm Naked Bottomless Portafilter 3 Ears Fits Delonghi Dedica EC680 and EC685, and SMEG & EUPA Coffee Machines with Anodized Aluminum Handle - Included Portafilter Filter Basket
    Normcore 51mm Naked Bottomless Portafilter 3 Ears Fits Delonghi Dedica EC680 and EC685, and SMEG & EUPA Coffee Machines with Anodized Aluminum Handle - Included Portafilter Filter Basket
    Fits the 51mm group seller says it fits
    Check price on Amazon
    See all bottomless portafilters for the De'Longhi Dedica Duo →
  3. 3

    Tamper

    Recommended

    A proper flat 51mm tamper replaces the light stock tamper and gives level, repeatable pucks.

    Must be 51mm - a 54mm or 58mm tamper will not seat.

  4. 4

    WDT tool

    Optional

    Breaks up clumps and evens distribution before tamping, reducing channeling in a single-wall basket.

    WDT Espresso Distribution Tool Espresso Stirrer Tools for Barista, 0.35mm 7 Needles Espresso Coffee Stirrer with Extra 7 Replaceable Needles, Aluminum Alloy Handle with Stand (Black)
    WDT Espresso Distribution Tool Espresso Stirrer Tools for Barista, 0.35mm 7 Needles Espresso Coffee Stirrer with Extra 7 Replaceable Needles, Aluminum Alloy Handle with Stand (Black)
    Universal - fits most machines universal item
    Check price on Amazon
    See all wdt tools for the De'Longhi Dedica Duo →
  5. 5

    Scale

    Optional

    Dialing dose in and yield out makes shots repeatable once you leave the forgiving pressurized baskets.

    Ultrean Mini Coffee Scale with Timer, Rechargeable Espresso Scale, 2kg/0.1g Accurate Scale for Espresso and Pour-Over Coffee, Portable Digital Kitchen Scale with 3 Brewing Modes
    Ultrean Mini Coffee Scale with Timer, Rechargeable Espresso Scale, 2kg/0.1g Accurate Scale for Espresso and Pour-Over Coffee, Portable Digital Kitchen Scale with 3 Brewing Modes
    Universal - fits most machines universal item
    Check price on Amazon
    See all scales for the De'Longhi Dedica Duo →
  6. 6

    Milk jug

    Optional

    A small (~350ml) pitcher makes the weak single-hole wand easier to control for microfoam.

    Breville BES003 Temp Control Milk Jug Espresso Accessory for Creating Latte Art
    Breville BES003 Temp Control Milk Jug Espresso Accessory for Creating Latte Art
    Universal - fits most machines universal item
    Check price on Amazon
    See all milk jugs for the De'Longhi Dedica Duo →
  7. 7

    Cleaning disc

    Skip

    Backflush discs and blind baskets are for machines with a 3-way solenoid group - the EC890M thermoblock has none, so descaling replaces backflushing.

De'Longhi Dedica Duo upgrade questions

What should I upgrade first on the De'Longhi Dedica Duo?

This passport starts with filter basket, but only after the grinder, basket choice, dose, and maintenance baseline are under control. Follow the reasons in each step rather than buying the whole list.

Do I need every upgrade in this guide?

No. Skip any item whose stated problem you do not have. Optional workflow tools should earn their place by improving repeatability or convenience in your setup.

Affiliate disclosure: this page contains affiliate links. If you buy through them we may earn a commission at no extra cost to you. We have not physically tested these products; all compatibility analysis is based on manufacturer specifications and publicly available listing data. "Seller-claimed" means a marketplace listing asserts the fit; it is not manufacturer-confirmed. Verify size against your machine before purchase.