
Product Features
Usage
- Level:
- Commercial Use: No
Manufacturing
Made in
The Coffeeionado Take
Who's It For:
It's Right For You If:
Things to Consider:
Our Take:
Why Buy from Coffeeionado
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Free Shipping
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Free (Next Day)
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Warranty
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12 Months (minimum)
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1 Year
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Insured Shipping
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Always
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Lifetime Support
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Extended Warranty Available
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What's Included?
Breville The Knock Box 20
Portfilters
Lifetime Support
Fast Free Shipping
Warranty:
For more details see: Warranty Policy
Warning
This product can expose you to chemicals including lead, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.
Full Product Description
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Keep your home cafe clear with the Breville Knock Box 20. Sized for the busiest setups, the Knock Box 20 offers a ludicrously capacious 20-puck capacity for multiple shots between cleanings. Clever features like a removable knock bar and nonslip base round out the design. Dishwasher-ready.
The Coffeeionado Standard
Warranty Included
Fast Free Shipping
Lifetime Support
SPECIFICATIONS
General Requirements
Water Filtration / Softener
Pressure Regulator
Water Quality & Machine Protection
Proper water quality is essential for optimal espresso extraction and long-term machine health. Use the guidelines below to ensure your machine performs at its best.
| Parameter | Ideal Range | Why It Matters |
|---|---|---|
| Total Hardness | 50-170 ppm | Prevents scale buildup while maintaining flavor |
| pH Level | 6.5-7.5 | Ensures balanced extraction and protects internal components |
| Chlorine | 0 ppm | Eliminates off-flavors and prevents corrosion |
| TDS (Total Dissolved Solids) | 70-150 ppm | Optimal mineral content for extraction and taste |
| Total Alkalinity | ~7.0 | Stabilizes acidity and extraction |
| Chloride | 0-28 ppm | Prevents corrosion (especially in steel boilers) |
Important Note
Always refer to your machine's manual for specific water quality recommendations and maintenance schedules.
Advisory
Install a water filtration system to maintain consistent water quality and extend the life of your espresso machine.
What This Means
- Water that’s too hard → scale buildup, reduced performance
- Water that’s too soft → flat, dull espresso
- Improper water can damage internal components over time
Machine-Specific Considerations
- These guidelines are safe for most home espresso machines
- Some machines (especially with stainless steel boilers) require stricter limits on chlorides
What We'd Tell You In Store
How to Choose a Home Espresso Machine
The machine that's right for someone who wants great espresso with minimal daily effort is not the same machine that's right for someone who wants to learn pressure profiling. Before you look at specs or prices, two questions do most of the work: how involved do you want to be, and what's your realistic total budget — including the grinder.
Lever and Paddle Espresso Machines: How Much Control Do You Want?
A standard espresso machine makes one decision for you: how the shot is extracted. Paddle machines, spring levers, and direct lever machines give that decision back — in increasing degrees, and with increasing demands on the person holding the lever. This guide covers the full spectrum.
How to Pick Out a Home Grinder
The grinder is the part of your espresso setup that most people buy last and most people wish they'd bought better first. Every shot you pull — its extraction speed, its flavor, its consistency from one morning to the next — is determined first at the grinder. A great machine cannot fix a poor grind.
Setting Up Your Home Espresso Machine Right
The decisions made in the first few days — where the machine lives, what water goes through it, how the workflow is arranged around it — determine a lot about whether espresso becomes a daily ritual you look forward to or a recurring source of frustration.