Keurig K-Supreme vs K-Supreme Plus: Which One Should You Buy

Buy the K-Supreme for most kitchens: the same MultiStream brewing, a 66 oz tank, and four brew sizes for about $129 at list, versus about $60 more for the Plus. The Plus adds a bigger 78 oz tank, a 4 oz brew size, and the strength, temperature, and favorites controls.

Water Tank, Brew Sizes, Strength & Temperature (spec table)

The 12 oz tank gap sounds small and is not: the K-Supreme refills after about five 12 oz cups, while the Plus tank brews up to nine cups before a refill.

The K-Supreme is the simpler of the two, and it gets the first review. Keurig launched it in 2020 as the first brewer in the line with MultiStream Technology. The control panel is a Strong button, a brew-size button, and a Brew Over Ice button. Keurig's official K-Supreme page still lists the 66 oz tank and the 1-year limited warranty.

The K-Supreme Plus takes the same brew head and adds what the base model leaves out: three strength levels, three temperatures, and a 4 oz brew size. It also brings a 78 oz tank and favorites for up to 3 users. Keurig introduced it in the back half of 2020, and our full K-Supreme Plus review covers it in depth.

The table has the specs; here is how each difference feels daily.

Water Tank Capacity (66 oz vs 78 oz)

Twelve ounces of tank is the difference between a mid-morning refill and a tank that carries the house. The 66 oz K-Supreme reservoir sits to the side or behind the machine; the 78 oz Plus tank mounts on the side and brews nine cups before a refill.

Strength & Temperature Control

The K-Supreme's Strong button slows the brew for a fuller extraction, and we recommend it. Our thermometer read about 180 F at default settings, below the 195-205 F the SCA recommends. The Plus offers three strength levels and three temperatures, and the tuning is real, even if the hot end has limits.

Programmable Favorites & BrewID

The Plus saves custom strength, temperature, and size combos for up to three users. BrewID is a different thing on a different machine. The K-Supreme Plus SMART recognizes each K-Cup variety, applies roaster-recommended settings from a library of over 900 pods, and brews from the app over 2.4 GHz Wi-Fi. It costs more and carries the family's quirks: it can fail to recognize generic and reusable pods, and its Wi-Fi has been the weak spot.

Display, Controls & Build Quality

Both read as mid-range plastic, but they present differently. The K-Supreme is all plastic with a button panel; the Plus wears stainless steel wrap and a digital display. We called the K-Supreme's shell well put together but not built to last.

Price: Is the Plus Worth the $60 Premium?

At list, the K-Supreme runs about $129 and the Plus about $189-199, a premium of about $60, give or take ten, with street prices drifting in deal cycles. For a household that never touches the controls, it is not worth it: the tank is the only difference you would feel. For a house of three or more, or anyone who wants a hotter, stronger, or smaller cup, it is.

MultiStream is the same in both machines, so the cups start equal.

MultiStream Technology on Both Models

MultiStream uses five needles to shower hot water across the grounds instead of one stream down the middle, so the pod saturates evenly. Fruity and acidic notes come out first, then sweetness and balance, then bitterness. In our cups that read smoother and fuller than the single-needle Keurigs we owned. It is the biggest change to the brew head since Keurig (Wikipedia) shipped its first K-Cup machines.

Brew Over Ice & the 4 oz Setting

Both brew iced coffee the right way: the cycle runs hot but concentrated, so the ice melts less and the cup keeps its strength, and neither went watery in our tests. The Plus adds a 4 oz brew size, the strongest iced base.

Travel Mug & Back-to-Back Brewing

Both clear a travel mug up to 7 in with the drip tray removed, about 6.2 in with it attached. Both also brew back to back without waiting or reheating, which matters when two people leave at different times.

The decision comes down to one question: will you use the controls the Plus adds? If not, the K-Supreme is the same brewer for less.

Choose the K-Supreme If...

• You want the same MultiStream cup quality for less money.
• Your counter is tight, because the 66 oz tank sits to the side or behind the machine.
• You make one or two cups a day and never plan to open a settings menu.

Choose the K-Supreme Plus If...

• Two or more people brew every morning and the 78 oz tank carries the house.
• You want strength and temperature control plus the extra 4 oz brew size.
• Saved favorites for up to three users sound like a morning routine upgrade.
• You prefer the stainless wrap and digital display on the counter.

The K-Supreme is our pick for most households: the same MultiStream cup at a lower price, a tank that fits more counters, and less to go wrong. The Plus justifies its price where the strength, temperature, and favorites controls actually change how you brew.

If BrewID and app brewing are the goal, that machine is the SMART variant, so check the K-Supreme Plus SMART price on Amazon before you compare against it. Both standard models are worth waiting for a deal on, since street prices drift well below list in sale cycles. The failure record is real on this generation, and the 1-year warranty is the backstop that has saved owners, so register it.