Description
The Keurig K155 OfficePRO Premier is a commercial single serve brewer, which in Keurig’s range means built for an office break room rather than a countertop at home. Keurig lists a full color touchscreen with adjustable brew temperature and programmable auto on and off, a language setting for English, Spanish or French, a 90 ounce removable pour over reservoir, four brew sizes, and a drain and store function. It runs on 120 volts and measures 14 inches wide, 10.38 inches deep and 13.8 inches high.
Three of those features exist specifically because the machine is shared rather than personal, and they are worth taking in turn.
The Reservoir and Shared Use
A 90 ounce reservoir is the single biggest difference from a domestic brewer. Keurig states it makes up to 18 cups before refilling, which in an office means the tank is filled once or twice a day rather than by every person who wants a coffee.
It is a pour over reservoir rather than a plumbed connection, so no water line is needed and the machine can go anywhere there is an outlet. That matters in a rented office or a break room where plumbing work is not an option. The reservoir is removable for filling at a sink.
For comparison, a domestic Keurig typically holds 40 to 60 ounces, and the smallest models brew a single cup from a fill. In a household of two the difference is irrelevant. In an office of ten it is the whole point.
The Touchscreen and Temperature Control
An adjustable brew temperature is unusual on a Keurig and it is a genuine capability rather than a convenience. Brewing temperature changes extraction: lower temperatures produce a lighter, less bitter cup and higher temperatures extract more strongly. On a shared machine that gets used for coffee, tea and hot cocoa, being able to set the temperature to suit the dominant use is worth having, and Keurig’s domestic machines mostly fix it.
Programmable auto on and off means the machine can be set to be ready when an office opens and to switch itself off at the end of the day rather than holding a tank of water at temperature overnight. That is an energy saving on a machine expected to run five days a week.
The language options, English, Spanish and French, are a commercial feature, aimed at workplaces where a single language cannot be assumed.
Drain and Store
Keurig singles this out as a feature only its commercial machines offer, and the reason is practical. A single serve brewer holds hot water in an internal tank at all times. Moving one with water still in the tank means spillage, and storing one over a winter in an unheated space means a risk of freezing and cracking.
Drain and store empties the internal tank so the machine can be transported or put away. For an office that relocates, a seasonal business, or a machine that moves between sites, that is a real advantage over a domestic brewer that cannot be emptied.
Brew Sizes and Everyday Use
Four brew sizes are offered at 4, 6, 8 and 10 ounces. The smaller sizes make a stronger cup from the same capsule, since less water passes through the same quantity of coffee, and the larger sizes make a milder one. That is the practical meaning of brew size on any capsule machine, and it is a strength adjustment rather than only a volume one.
The machine uses standard K-Cup pods and Keurig lists a reusable filter type, which suggests a My K-Cup style reusable capsule is supported for ground coffee. Keurig’s stated brew time is under one minute per cup.
Highlights
- Full color touchscreen interface.
- Adjustable brew temperature.
- Programmable auto on and off.
- Language selection: English, Spanish or French.
- 90 ounce removable pour over reservoir, up to 18 cups per fill.
- Four brew sizes: 4, 6, 8 and 10 ounces.
- Drain and store function for the internal hot water tank.
- Brews coffee, tea, hot cocoa and iced beverages from K-Cup pods.
- 120 volts. 14 by 10.38 by 13.8 inches.
- Average rating of 4.3 out of 5 from more than 4,800 ratings.
Things To Consider
The listing gives the item weight as 6 pounds, which is light for a brewer with a 90 ounce reservoir and an internal hot water tank. Comparable machines run 10 to 14 pounds, and the figure may be the dry weight of the brewer without the reservoir. It should not be relied on for planning.
No wattage or amperage is published, only the 120 volt supply. A brewer that holds an internal tank at temperature draws meaningfully more at heat up than at idle, and on a shared office circuit already carrying a microwave and a kettle that is worth knowing.
The “Coffee Maker Type” field reads “Pour Over”, which describes the manually filled reservoir rather than the brewing method. This is a capsule brewer, not a pour over coffee maker in the manual sense, and anyone actually wanting pour over should look at the pour over coffee maker range.
Capsule machines carry an ongoing cost and an ongoing waste stream that ground coffee does not. In an office that runs dozens of cups a day, both add up quickly. A domestic Keurig such as the K-Elite uses the same pods at a smaller scale, and the Nespresso VertuoPlus uses a different and narrower capsule supply again.
The model has been listed since 2012, so this is a mature design. Parts and pods are widely available, and the touchscreen and interface are of their era.
Who It Suits and Who Should Look Elsewhere
This suits an office, a waiting room, a small business or a large household where several people brew through the day and nobody wants to refill a tank after every cup. The large reservoir, the auto on and off scheduling, the temperature control and the drain and store function are all built for shared use, and 4,800 ratings at 4.3 out of 5 is a substantial track record.
It is more brewer than a household of one or two needs, where a compact machine from the single serve brewer range is a better fit. Anyone who wants espresso with crema rather than K-Cup coffee should compare the Nespresso Vertuo, and buyers who would rather brew a full pot should look at the coffee machine category.
