Description
The Ninja CE251 is a 12 cup programmable drip machine with a glass carafe, a removable 60 ounce water reservoir, a permanent filter and an adjustable warming plate. It offers two brew styles, a small batch mode, mid brew pause, 24 hour delay brewing and a dedicated clean setting, which is a fuller feature list than most machines at its price.
The arithmetic checks out, which is worth noting because it often does not in this category: 12 cups at the standard five ounce carafe measure is 60 ounces, and the reservoir holds exactly that. In practice a full pot is four or five mug sized servings rather than twelve.
Brew Styles and Strength
Classic and Rich are the two settings. On a drip machine a richer setting works by slowing the water so it spends longer in contact with the bed of grounds, pulling more out of the same dose. Ninja describes both styles as never bitter, which is marketing rather than a specification, but the underlying control is real.
Rich mode earns its keep when you are pouring into a large mug rather than a five ounce cup, or when the pot will sit for a while. It is not a substitute for the right ratio: if the coffee is weak because there are not enough grounds in the basket, no flow rate setting fixes that. Weighing rather than scooping makes a larger difference than either style does, and it costs nothing to try.
Small Batch and Mid Brew Pause
The one to four cup function addresses a real weakness of full size machines. A brewer designed to saturate enough grounds for 12 cups pushes water through quickly, and a small bed of grounds does not slow it enough, so a single mug comes out weak. Small batch mode reduces the flow rate to compensate.
Mid brew pause lets you pull the carafe and pour a cup before the cycle finishes, with a valve in the basket closing to stop the drip. It is worth understanding what you get: the first part of a brew cycle is the most concentrated and the last part the weakest, so a cup poured halfway through is stronger than the finished pot, and what remains is weaker. It is a convenience rather than a way of getting the same coffee sooner, and the carafe needs to go back within a few seconds or the basket overflows.
The Removable Reservoir
The 60 ounce reservoir lifts out and carries to the sink. That is a small thing that changes the daily routine, because the alternative is either moving the machine forward on the counter or pouring from the carafe into an opening at the back.
It also means the tank can be rinsed properly. Fixed reservoirs develop a film that nothing reaches, and that film affects taste over time. The tradeoff is a seal and a valve that can eventually leak where a moulded fixed tank cannot, but on balance the removable design is the better one. The larger Ninja DCM200C uses the same idea with a 70 ounce tank and a 14 cup carafe.
The Clean Setting
A dedicated clean setting descales the machine at the touch of a button, which is unusual at this price and genuinely useful. It does not replace the descaling agent; you still fill the reservoir with a solution. What it does is run the cycle at the right rate and prompt you through it, rather than leaving you to improvise with a normal brew cycle.
Scale is the failure mode for every drip machine. It narrows the water path, which is why a scaled machine brews slowly and delivers a short pot, and it insulates the heating element, which is why a scaled machine also brews cooler and produces weak coffee. A button that makes the job easy is a button people will actually press. Any of the descaling products we cover will work with it, and a tablet is the least fiddly option since there is nothing to measure.
The Warming Plate and the Carafe
The warming plate is adjustable and rated to keep coffee fresh for up to four hours. Adjustable matters more than the four hour figure, because a glass carafe on a hot plate keeps cooking the coffee. The stewed, flat taste in the last cup is the plate, not the beans.
Being able to run the plate cooler, or to shorten the window, limits how far that goes. The complete answer is a thermal carafe, which holds heat without applying it, as on the BUNN Speed Brew Thermal. That costs more. Within the glass carafe world, an adjustable plate is the best available compromise.
Conflicting Fields In The Listing
Three entries in the attribute table are wrong and worth naming. The style field reads Stainless Steel, 14-Cup on a machine sold and described everywhere else as a 12 cup brewer, and the 60 ounce reservoir confirms 12 rather than 14. The specific uses field reads Espresso, which this machine does not make: there is no pump, no pressure and no portafilter. And the recommended use field reads Camping, which is an odd suggestion for a 110 volt countertop appliance with a glass carafe.
None of those affect the machine, but they do show how little the specification fields in this catalogue can be trusted on their own. The included components list is more reliable and more useful: brewer, 12 cup glass carafe, permanent filter, integrated scoop and the removable reservoir.
What the Specifications Do Not Settle
No brew temperature is published, despite the hotter brewing claim in the marketing. No wattage. No brew time for a full carafe. No description of what the adjustable warming plate adjusts between, whether that is temperature, duration or both. No detail on the shower head design, which determines how evenly the grounds are saturated.
The permanent filter is included but its shape is not stated, so if you decide you prefer paper you will need to check whether the basket takes cone or basket papers before ordering from the disposable filters we cover. The recorded dimensions of 8 inches deep, 10 inches wide and 14 inches high are plausible, and the 6.55 pound weight indicates a plastic body with a stainless facing.
Who It Suits
This is a strong all round choice for a household that brews a pot most mornings. The removable reservoir, the clean cycle, the small batch mode and the adjustable plate together cover more of what actually matters day to day than the feature lists on most competing machines, and it has been on sale long enough that the body of published owner feedback is deep.
Skip it if the pot routinely sits for hours, since a thermal carafe machine handles that properly. Skip it too if only one person drinks coffee, where a single serve machine from the single serve brewers we cover wastes far less coffee and water. And if you want a machine that measures for you, that is a different price bracket entirely.
