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Nerd Out - Coffee Brewing Guides & Barista Tips

What Does a Coffee Distributor Actually Do? (And Do You Need One?)
Barista TipsJun 5, 2026
What Does a Coffee Distributor Actually Do? (And Do You Need One?)

If you've started going down the home espresso rabbit hole, you've probably come across coffee distributors - also called levellers or WDT tools. But what do they actually do, and do you really nee...

E61 Grouphead Upgrades: The Best Accessories Worth Getting
58mmJun 5, 2026
E61 Grouphead Upgrades: The Best Accessories Worth Getting

The E61 grouphead is found on some of the best prosumer espresso machines in the world - ECM, Rocket, Profitec, Lelit, La Marzocco and more. It's a proven, reliable design that's been around for de...

Gaggia Classic Upgrades: The Best Accessories Worth Getting
58mmJun 5, 2026
Gaggia Classic Upgrades: The Best Accessories Worth Getting

The Gaggia Classic is one of the most popular entry-level espresso machines ever made - reliable, repairable, and with a huge community behind it. It's also one of the most upgrade-friendly machine...

Breville Dual Boiler & Oracle Upgrades: Best Accessories | Coffee Nerd
58mmMay 22, 2026
Breville Dual Boiler & Oracle Upgrades: Best Accessories | Coffee Nerd

The Breville Dual Boiler and Oracle are two of the best prosumer espresso machines on the market. But even the best machines benefit from a few smart upgrades. Here's what's worth adding. 1. Stainl...

Breville Oracle & Dual Boiler Diffuser Plate: Why It Cracks (And What to Do About It)
58mmMay 21, 2026
Breville Oracle & Dual Boiler Diffuser Plate: Why It Cracks (And What to Do About It)

If you own a Breville Oracle or Dual Boiler and your shots have started tasting inconsistent — bitter, sour, or just harder to dial in than they used to be — there's a good chance your diffuser pla...

De'Longhi La Specialista Upgrades: The Accessories Worth Getting
51mmApr 23, 2026
De'Longhi La Specialista Upgrades: The Accessories Worth Getting

The La Specialista is one of the best mid-range espresso machines on the market - built-in grinder, sensor grinding, active temperature control. But a few smart accessory upgrades can take it from ...

Why You Should Replace the Plastic Diffuser Plate in Your Breville Oracle or Dual Boiler
Apr 21, 2026
Why You Should Replace the Plastic Diffuser Plate in Your Breville Oracle or Dual Boiler

Most Breville and Sage owners don't even know the diffuser plate exists. But if you own an Oracle or Dual Boiler, there's a good chance it's quietly affecting every shot you pull. What Is a Diffus...

Breville Barista Express & Pro Upgrades: The Accessories Worth Getting
Apr 21, 2026
Breville Barista Express & Pro Upgrades: The Accessories Worth Getting

The Barista Express and Barista Pro are two of the best entry-to-mid espresso machines on the market. But out of the box, they're leaving some extraction quality on the table. A few targeted upgrad...

Portafilter Sizes Explained: What Size Is Your Espresso Machine?
51mmMar 12, 2026
Portafilter Sizes Explained: What Size Is Your Espresso Machine?

One of the most common questions from home baristas is a simple one: what size portafilter does my machine take? It matters because everything that connects to your grouphead — replacement portafil...