Description
The Mr. Coffee SK12-RB Simple Brew is the plainest machine in this whole category. It is a 12 cup drip brewer with a glass carafe, a warming plate, a switch and nothing else. There is no clock, no delay timer, no brew strength selector and no display. You put coffee in, put water in, and press the switch.
That is not an oversight, it is the product. Everything in this listing that looks like a feature is actually a practical detail rather than an electronic one, and the honest way to evaluate it is to ask whether those details are done well, because the price does not leave room for anything else.
Switch Operation and What You Give Up
The Amazon title describes this as a switch coffee maker, and that word is doing real work. A switch machine cannot be programmed, so you cannot load it the night before and wake to a full pot. That is the single feature most people miss when they move from a programmable machine to this one.
What you gain is that there is nothing to go wrong and nothing to learn. A power on and off indicator light shows when the machine is running, which sounds trivial until you consider that a switch machine with no display gives you no other way to tell. It is also the feature that stops you leaving it on all day. If programming is what you want, a machine such as the Mr. Coffee 12 cup programmable adds a timer and a strength selector for a modest step up in price.
The Dual Water Window
A water window on both sides of the reservoir is a small design decision with a real payoff. Most machines put a single window on one side, which means that whichever way your machine faces on the counter, half the time you are filling blind or leaning around it.
Two windows means you can see the level from either side. The listing frames it as preventing overflows, which is the practical consequence: a reservoir filled past its mark on a drip machine overflows into the basket rather than stopping neatly. On a machine with no display and no water sensor, being able to see the level accurately is the only control you have over how much coffee you make.
Auto Pause and the Filter Basket
Grab-A-Cup Auto Pause stops the flow when you lift the carafe mid cycle, using a spring loaded valve in the basket. It is standard across the category and it works the same way everywhere.
The caveat is worth repeating because people are routinely disappointed. Coffee is not evenly extracted through a cycle: the first third is the strongest and the last third the weakest. A cup poured halfway through is more concentrated than the finished pot would have been, and what is left behind is correspondingly weaker. It is a convenience, not a shortcut to the same coffee. The Lift and Clean filter basket is the more useful of the two features here: the whole basket lifts out rather than swinging on a hinge, so it goes to the sink instead of being wiped in place.
The Specification Field Errors
The attribute table for this product contains one outright error and one field full of nonsense, and both are worth naming.
The coffee maker type is recorded as Moka Pot. This is not a moka pot. A moka pot is a stovetop or electric pressure vessel that pushes water up through grounds using steam pressure, produces around nine ounces of concentrated coffee and has no carafe, no warming plate and no filter basket. This is a conventional gravity drip machine with a 12 cup glass carafe. If you actually want a moka pot, the stovetop moka pots we cover are an entirely different appliance.
The included components field reads Hot Beverages, Coffee Machines, drip coffeemakers. Those are category breadcrumbs from the retail listing that have been written into a specification field. They tell you nothing about what is in the box, and in particular they do not confirm whether the permanent filter mentioned in the special features field is actually supplied.
Filters and Running Costs
The special features list mentions a permanent filter and the filter type is recorded as Reusable, but as noted above the components field is unusable, so whether a mesh filter ships in the box is not established by this listing.
If you are supplying your own, this takes standard basket papers for an 8 to 12 cup machine, and the disposable filters we cover include that size. Paper and mesh give different results: paper traps the coffee oils and fine particles, giving a cleaner and lighter cup, while a mesh filter lets them through for more body and occasionally a little sediment. On a machine at this price the filter choice makes more difference to the coffee than anything else you can change.
Size, Weight and Cleaning
The recorded dimensions are 9.2 inches deep, 12.3 inches wide and 13.6 inches high, with an item weight of 3.6 pounds. That is very light, and it tells you this is an entirely plastic bodied appliance. The upside is that it is easy to move for cleaning behind; the downside is that a light machine slides when you pull the carafe out one handed.
There is no self clean or descaling cycle, so descaling is manual: fill the reservoir with a descaling solution, run a cycle with no filter, then run two full reservoirs of plain water to rinse. Scale is what ends the life of drip machines, showing up first as a slow brew and a short pot. The descaling products we cover include tablets that suit machines with no dedicated cycle, since there is nothing to measure.
What the Specifications Do Not Settle
No brew temperature. No wattage. No reservoir capacity in ounces. No brew time. No warranty term. No confirmation of what is in the box. No description of the shower head or how water is distributed over the grounds, which on a machine this simple is the main determinant of whether the coffee is any good.
The recorded first availability date of July 2009 is the most informative figure in the table. This is a design that has been on sale for well over a decade, which means a very deep body of published owner feedback exists and replacement carafes are easy to find, and it also means the feature set has not moved because it was never meant to.
Who It Suits
This is the right machine for a second kitchen, a rental property, an office corner, a caravan or anyone who genuinely does not want to think about a coffee maker. It brews a full pot, it has the two details that matter most day to day in the lift out basket and the twin water windows, and it costs very little.
Skip it if you want to wake up to coffee, because there is no timer. Skip it too if you want a strength control or if the pot regularly sits for hours, since a glass carafe on a warming plate will always stew. Anyone who wants either of those will find them a small step up the drip coffee maker range, and the difference in price is smaller than the difference in daily satisfaction.
