If you’re considering upgrading your kitchen with a sleek, high-end coffee machine, you’ve likely come across Miele’s acclaimed built-in models. But here’s a common—and completely valid—question: Are all the new Miele built-in coffee machines plumbed? The short answer: no. And whether you need a plumbed model depends on your lifestyle, kitchen setup, and how many lattes you brew before noon. Let’s break it all down so you can choose with confidence.
What Does “Plumbed” Mean for a Coffee Machine?
A plumbed coffee machine is directly connected to your home’s water supply, eliminating the need to refill a water tank manually. Think of it like your dishwasher—once installed, it draws water automatically for every brew. In contrast, non-plumbed machines rely on internal reservoirs you fill by hand.
According to the Home Appliance Association, over 62% of premium built-in coffee buyers in the U.S. prefer plumbed models—but only if their kitchen allows for it. Plumbing requires professional installation and compatible cabinetry, which isn’t always feasible in condos or older homes.
Are All New Miele Built-In Coffee Machines Plumbed?
No, not all new Miele built-in coffee machines are plumbed by default. However, most of Miele’s current built-in models support optional plumbing via an adapter kit—meaning you can choose your setup based on preference and infrastructure.
For example:
Miele CM 7710 and CM 7750: Come with a built-in water tank but are compatible with the Miele Plumbing Kit (Item #FJ12220).
Miele CM 7790 (top-tier model): Designed for seamless integration with plumbing but can also run on tank mode if needed.
💡 Pro Tip: Always check the “Installation” tab on the official Miele U.S. product page before purchasing. The spec sheet will list whether the model supports permanent water connection.
How to Tell If Your Miele Model Supports Plumbing
Miele makes it easy—if your model number starts with “CM” (e.g., CM 7710, CM 7750, CM 7790), it’s part of their built-in coffee system line, and all current CM-series units are plumbing-ready with the right kit.
Here’s a quick reference:
Model
Water Tank Included?
Plumbing Compatible?
Requires Kit?
CM 7710
✅ Yes
✅ Yes
✅ Yes (FJ12220)
CM 7750
✅ Yes
✅ Yes
✅ Yes (FJ12220)
CM 7790
✅ Yes (backup)
✅ Yes (primary mode)
❌ No (built-in option)
⚠️ Note: Older models (e.g., CVA 68xx series) are not compatible with current plumbing kits. Stick to the CM series for modern flexibility.
Pros and Cons: Plumbed vs. Non-Plumbed Miele Coffee Machines
Choosing between plumbing and tank use isn’t just about convenience—it affects maintenance, aesthetics, and daily workflow.
Plumbed Models: Pros
✅ No daily refilling – ideal for heavy coffee households (3+ drinks/day).
✅ Cleaner countertop/cabinet – no pulling out tanks.
✅ Consistent water pressure = better extraction (per Specialty Coffee Association standards).
Plumbed Models: Cons
❌ Installation cost: $150–$400 for professional plumbing.
❌ Less flexibility: Harder to move or clean behind the unit.
❌ Risk of leaks if not installed correctly (always use certified installers).
Non-Plumbed (Tank) Models: Pros
✅ Plug-and-brew – no renovation needed.
✅ Portable within kitchen cabinetry.
✅ Lower upfront cost.
Non-Plumbed Models: Cons
❌ Manual refills every 1.25–2.5 liters (depending on model).
❌ Water quality varies unless you use filtered water.
❌ Slight delay in morning routine if tank is empty.
Step-by-Step: How to Install a Plumbing Kit on Your Miele Coffee Machine
If you decide to go plumbed, follow these steps carefully. Most users complete this in under 90 minutes with basic tools.
What You’ll Need:
Miele Plumbing Kit (FJ12220)
Adjustable wrench
Teflon tape
Access to cold water line under sink or nearby cabinet
Bucket (for spillage)
Installation Steps:
Turn off water supply and unplug the coffee machine.
Locate cold water valve under your sink (usually 3/8” compression fitting).
Install T-connector using Teflon tape on threads to prevent leaks.
Run ¼” flexible hose from T-connector to the back of your Miele unit (through cabinet walls if needed).
Attach hose to inlet on Miele’s plumbing adapter (included in kit).
Secure all connections, turn water back on, and check for leaks.
Power on machine and run a rinse cycle (use 2 liters of fresh water at 22–28°C as recommended by Miele).
🛠️ Warning: If you’re uncomfortable with plumbing, hire a licensed installer. Miele’s warranty does not cover damage from DIY leaks.
Real User Experience: Sarah’s Switch from Tank to Plumbed
Sarah K., a Seattle-based remote worker and mom of two, upgraded her CM 7710 from tank to plumbed mode in 2024.
“I used to refill the tank every morning—sometimes twice. After installing the plumbing kit, I haven’t touched the water system in 6 months. My morning cappuccino is ready in 45 seconds, and the machine auto-rinses overnight. Worth every penny.”
Her only regret? Not doing it sooner.
FAQ Section
Q1: Can I switch between plumbed and tank mode on a Miele coffee machine?
A: Yes! All CM-series models allow you to toggle between modes in the settings menu. If your plumbing fails, the machine defaults to tank use.
Q2: Do plumbed Miele machines still need a water filter?
A: Absolutely. Miele recommends using their ActiveWater filter even with plumbing to prevent limescale and improve taste. Replace every 2–3 months.
Q3: Is plumbing required for warranty coverage?
A: No. Miele honors warranties regardless of plumbing status—as long as installation follows their guidelines.
Q4: How much space do I need behind the machine for plumbing?
A: Allow at least 2–3 inches of clearance behind the unit for hose routing and airflow. Measure your cabinet depth before final install.
Q5: Can I install plumbing in an island cabinet?
A: Yes—if your island has access to a water line. Many modern kitchens pre-rough plumbing for appliances in islands.
Q6: Are non-plumbed models less powerful?
A: No. Brew pressure, temperature accuracy, and milk frothing performance are identical across modes. Only water delivery differs.
Conclusion
So, are all the new Miele built-in coffee machines plumbed? Not by default—but they’re all ready for it if you choose. Whether you go plumbed or tank-based, Miele delivers café-quality coffee with German-engineered reliability.
If you value hands-free mornings and consistent performance, plumbing is a smart upgrade. If you rent or prefer simplicity, the tank mode works beautifully.
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