The Keurig K-3500 Commercial Coffee Maker - Excellent for Busy Offices

Published on Jan. 5, 2024, 4:57 p.m.

The Keurig K-3500 Commercial Coffee Maker is an excellent option for busy offices that need to brew coffee quickly and continuously throughout the day. With its large capacity and direct water line connectivity, this sleek and intuitive coffee machine can keep your team energized.


The Keurig K-3500 Commercial Coffee Maker is a capsule-based coffee maker specifically designed for commercial use. It has a 60oz internal water tank that can be directly plumbed to a water line for continuous water supply. The intuitive touchscreen interface allows you to choose from 5 cup sizes, including a large 12oz serving.

After getting a general understanding of the Keurig K-3500’s capabilities, let’s delve deeper into its specific features that make it an outstanding choice for commercial use.

Key Features

  • Direct water line connectivity
  • 60oz removable water reservoir
  • 5 cup size options from 4oz to 12oz
  • Strong brew feature for bolder coffee
  • Intuitive touchscreen interface
  • Automatic k-cup pod ejection

Capsule System Introduction

The Keurig K-3500 utilizes a capsule-based brewing system, which offers a clean, quick, and efficient way to brew coffee. Each K-Cup pod contains a precise amount of coffee grounds, tea leaves, or hot cocoa mix, sealed for freshness. The machine pierces the pod and forces hot water through it, extracting the beverage directly into your cup. This system minimizes waste and cleanup while providing a consistent taste and quality with each brew.

Design - Sleek and Sturdy

The Keurig K-3500 Commercial Coffee Maker features a sleek silver and black exterior that looks modern and professional. Its commercial-grade components are made to withstand continuous high-volume use. The intuitive touchscreen interface provides a clean, user-friendly experience.

Ease of Use - Simple and Efficient

With just the touch of a button, the Keurig K-3500 Commercial Coffee Maker delivers a fresh cup of coffee in under a minute. The automatic K-cup ejection and pod storage bin make cleanup quick and simple. The direct water line connection eliminates time wasted refilling the reservoir.

Brewing Types - K-Cup Pods

The Keurig K-3500 Commercial Coffee Maker is designed for Keurig K-Cup pods, which come in a wide variety from top coffee brands. It does not support ground coffee or other capsule types. K-Cups allow endless beverage variety from coffees to teas and hot cocoa.

Suitable Coffee Types - All Varieties

From mild Breakfast Blends to intense Espressos, the Keurig K-3500 Commercial Coffee Maker can brew all coffee styles thanks to K-Cup variety. The Strong Brew feature extracts maximum flavor from bold, dark roasts. Iced coffee is easy with the oversized cup option.

Coffee Quality - Rich and Flavorful

Users praise the rich, restaurant-quality coffee produced by the Keurig K-3500 Commercial Coffee Maker. The optimized brewing temperature and pressure extracts sweet, aromatic flavor leading to superb taste and aroma in the cup.

Water Tank - Direct Line Connectivity

While the Keurig K-3500 has a large internal tank, its standout feature is the direct water line connectivity, which allows for an uninterrupted water supply, eliminating the need for frequent refills. This is particularly beneficial in busy commercial settings.

Innovation - Pod-Based Convenience

The innovative use of pre-packed K-Cup pods allows quick, mess-free preparation from a vast beverage selection.

Additional Features - Strong Brew

The Strong Brew mode can intensify coffee strength and flavor when desired. Simple controls make programming automatic on/off quick.

Cleaning - Easy Maintenance

The removable drip tray, pod bin, and water tank are dishwasher safe for easy cleaning. The touchscreen wipes down easily with a damp cloth.

Maintenance and Troubleshooting

Regular maintenance is crucial to ensure the longevity and optimal performance of the Keurig K-3500 Commercial Coffee Maker. Users should descale the machine every 3 to 6 months to prevent mineral buildup. In case of operational issues, the machine’s built-in diagnostic system provides alerts and guidance. For more complex issues, Keurig offers comprehensive customer service and technical support to assist with troubleshooting and repairs.

Noise Level - Average

The brewing noise level is about average for a commercial coffee maker. There is some noise when pumping and heating water which is expected.

Safety - Sturdy Build Quality

The metal and plastic components are BPA-free and built to commercial-grade standards for safety and durability. It meets the requirements for ETL sanitation.

Power Source - Corded Electric

The Keurig K-3500 Commercial Coffee Maker uses a standard 120V electric outlet. Power cord length is unknown but appears adequately long.

Maintenance and Cost - Occasional Descaling

Only occasional descaling solution rinses are needed for maintenance. K-Cups provide convenience but are more costly per cup than ground coffee.


The Keurig K-3500 Commercial Coffee Maker is made by Keurig, a well-known brand in single-serve coffee makers for home and commercial use. Keurig is trusted for its innovative brewing technology and high-quality coffee machines.

Keurig is a pioneer in the single-serve coffee maker industry, known for revolutionizing coffee brewing at home and in the office. Since its inception, Keurig has been committed to providing convenient, innovative solutions for coffee lovers, continually evolving its product line to meet the changing needs and preferences of its customers. The introduction of the K-3500 model extends this legacy, offering advanced features tailored for commercial settings.

Ideal Use Cases

With its large capacity water reservoir, continuous water line connectivity, fast brew speed and reliability, the Keurig K-3500 Commercial Coffee Maker is ideal for busy offices, waiting rooms, cafeterias, and other commercial settings that need to serve coffee to a lot of people throughout the day.

User Feedback Analysis

Overall, reviews for the Keurig K-3500 Commercial Coffee Maker are very positive, with most users giving it high ratings for convenience, speed, reliability, and beverage taste.

The intuitive touchscreen earns consistent praise for its easy operation. Users love being able to get a piping hot cup of coffee with just the press of a button. The strong brew function satisfies those who enjoy an intense coffee kick.

Many reviewers working in offices say the Keurig K-3500 Commercial Coffee Maker saves them substantial time over conventional drip coffee brewers. The rapid brew speed and continuous water supply means no waiting around for a fresh cup. Employees can quickly grab coffee without disrupting their workflow.

When it comes to beverage taste, users are very impressed with the Keurig K-3500 Commercial Coffee Maker. They describe the coffee as robust, flavorful, and better than coffee-shop quality. The machine can turn out impressively piping hot cups in succession thanks to the thermocoil heating system.

In terms of reliability, the commercial-grade components live up to their promise according to most reviews. The Keurig K-3500 Commercial Coffee Maker delivers cup after cup without leakage, clogging, or other issues even under heavy daily use.

One common complaint is that the auto-off timer is not adjustable, so the machine turns off too soon for some environments. However, several users mentioned using a smart plug to keep it powered on without wasting energy.

Overall, the vast majority of feedback reveals how satisfied customers are with their Keurig K-3500 Commercial Coffee Maker purchase. It earns consistent praise as a fast, sturdy, and tasty way to keep offices energized and productive. Many reviewers say it’s one of the best investments they’ve made for their business.


  • Fast brew speed
  • Reliable performance
  • Simple one-touch operation
  • Large capacity
  • Continuous brewing capability


  • Auto-off timer not adjustable
  • Higher price than home models

Value for Money

While priced higher than home models, the Keurig K-3500 Commercial Coffee Maker provides excellent value given its commercial-grade features, durability, and performance. For offices that need to brew coffee constantly throughout the workday, the productivity and convenience gains are well worth the investment.

Recommendation - Great for Offices

With its speed, reliability, and easy maintenance, the Keurig K-3500 Commercial Coffee Maker is an excellent choice for office coffee service. Its commercial-grade features like the direct water line connectivity provide convenience and productivity. If you need to keep your office happy and caffeinated, the Keurig K-3500 Commercial Coffee Maker is a smart investment.


  • Brew Sizes: 4oz, 6oz, 8oz, 10oz, 12oz
  • Water Reservoir Capacity: 60oz removable
  • Power: 1400 watts
  • Dimensions: 17.4” x 12” x 18”
  • Weight: unknown
  • Material: unknown

Box Contents

The Keurig K-3500 coffee maker comes with the brewer unit and a starter assortment of K-cup coffee pods. Accessories like a water filter may need to be purchased separately.

Frequently Asked Questions

### Does the Keurig K-3500 Commercial Maker Capsule Coffee Machine have a direct water connection?

Yes, the Keurig K-3500 Commercial Maker Capsule Coffee Machine features direct water-line plumbing. This eliminates the need to manually refill a water reservoir, making it ideal for offices and workplaces where continuous brewing is a necessity.

### What cup sizes can the Keurig K-3500 Commercial Maker Capsule Coffee Machine brew?

The Keurig K-3500 Commercial Maker Capsule Coffee Machine offers a versatile range of cup sizes, including 4 oz., 6 oz., 8 oz., 10 oz., and a new 12 oz. size. It’s perfect for accommodating everyone’s preferences, from small, concentrated coffee to larger travel mugs.

### Does the Keurig K-3500 Commercial Maker Capsule Coffee Machine offer customizable brewing strength?

Yes! The “STRONG” brew option on the Keurig K-3500 Commercial Maker Capsule Coffee Machine lets you make a bolder, more intense cup of coffee whenever you need an extra caffeine kick.

### Is the Keurig K-3500 Commercial Maker Capsule Coffee Machine easy to use?

Absolutely! The Keurig K-3500 Commercial Maker Capsule Coffee Machine boasts an intuitive high-resolution touchscreen interface that makes brewing coffee a breeze. It provides clear status updates and even includes a convenient energy-saving screensaver mode.

### Can the Keurig K-3500 Commercial Maker Capsule Coffee Machine dispense hot water?

Yes, the Keurig K-3500 Commercial Maker Capsule Coffee Machine has an on-demand hot water dispenser. This is perfect for making tea, hot cocoa, or even instant oatmeal and soups right at your breakroom countertop.


  • Install a water filtration system: To ensure the best possible taste for your coffee and tea, consider installing a water filtration system for your direct water line.
  • Regular cleaning: Descale the Keurig K-3500 Commercial Maker Capsule Coffee Machine regularly according to the manufacturer’s instructions for optimal performance and longevity.
  • Explore K-Cup variety: Experiment with the wide range of K-Cup pods available to discover new favorite blends, teas, and other hot beverages.
  • Take advantage of the large water tank: The Keurig K-3500 Commercial Maker Capsule Coffee Machine‘s internal water tank can be drained completely, making it easier to transport or relocate your brewer when needed.

Advanced Usage Tips and Best Practices

To maximize the Keurig K-3500’s capabilities, users can experiment with various K-Cup flavors and strengths to find their perfect brew. Regularly updating the machine’s firmware ensures access to the latest features and improvements. For businesses, tracking beverage preferences and usage patterns can help in optimizing coffee selection and inventory management, enhancing the overall coffee experience for employees and guests.