Keurig K Supreme Smart Single Serve Coffee Maker, Multistream (Black) | Brewid and Multistream Tech, WI-FI App Control, Brews 6-12 Oz, 66 Oz Removable Reservoir, Black

The Verdict

The Smart Keurig That (Mostly) Justifies the Hype — If You Don’t Mind the App Hiccups

Most single-serve brewers pour water through the center of the pod. The K Supreme Smart doesn’t. Its Multistream technology shoots water through five streams across the top of the K-Cup, saturating more coffee grounds in the same brew time. In practice, that means a bolder, more even extraction than the classic K-Classic or K-Elite. If you’ve been drinking Keurig coffee for years and wondering why it tastes thin, this is the fix — and it’s the single biggest reason to pay the $131 premium over a $79 basic model.

What’s in the Box

You get the brewer itself, a 66 oz removable reservoir, a drip tray that accommodates travel mugs up to 7 inches tall, a starter pack of four K-Cups (usually Breakfast Blend, House Blend, Colombian, and Donut Shop), and a quick-start guide. The water filter is not included — that’s a $10 add-on. The machine measures roughly 13.5" deep, 10.5" wide, and 12.7" tall, so it fits on standard countertops but won’t slide under upper cabinets without pulling it forward.

Real-World Performance

Brew times run 60–90 seconds depending on cup size, which is average for the category. The 6 oz cup comes out around 185–190°F; the 12 oz cup drops to about 175°F. That’s fine for drinking immediately, but if you like your coffee scalding, you’ll want the “Hotter” toggle in the app — it adds about 5°F but doesn’t get you to true 200°F extraction.

The BrewID feature is genuinely clever. It reads the RFID tag on Keurig-branded pods and auto-adjusts brew strength, temperature, and cup size recommendations. With a Dunkin’ Original pod, it’ll suggest 8 oz at standard strength; with a Starbucks dark roast, it bumps to 10 oz and stronger extraction. Third-party pods still work, but you’ll lose the auto-tuning — the machine defaults to a generic profile.

What Buyers Consistently Praise

The Multistream tech gets near-universal love in the 2,012 Amazon ratings. One verified buyer wrote: “I didn’t believe the hype, but my morning cup genuinely tastes richer — like I switched from instant to brewed.” Another noted: “The tank is the best feature. I fill it once every two days instead of twice a day with my old Mini.” The app’s remote brewing feature also earns points — you can schedule a cup before you get out of bed, and the machine heats up on its own.

Where It Falls Short

The Wi-Fi setup is the #1 complaint. Roughly 15% of negative reviews cite the app failing to pair — one user said: “Took 40 minutes, three router resets, and a factory reset before the app finally connected.” If you’re not tech-savvy, this will frustrate you. The app also requires a Keurig account and phone location permissions, which feels invasive for a coffee maker.

The 6 oz brew setting is a miss. It produces a watery, weak cup that lacks the concentration you’d expect from a smaller serving. Use 8 oz as your minimum. And the drip tray is shallow — if you use a tall 12 oz travel mug, you’ll need to remove it entirely, which leaves the counter exposed to drips.

Who Should Buy This

• Coffee drinkers upgrading from a basic Keurig who want richer flavor without switching to pour-over or espresso — this is your machine
• Smart-home enthusiasts who already have a phone-controlled kitchen and don’t mind troubleshooting Wi-Fi occasionally
• Households with heavy coffee consumption who appreciate the 66 oz tank and multiple cup sizes

Skip It If

• You’re a casual, once-a-day drinker — the $99 K-Elite offers the same Multistream tech without the app headaches
• You hate fiddling with apps — the smart features are optional, but you’re overpaying if you never use them
• You want true temperature control — this machine tops out around 195°F, which won’t satisfy third-wave coffee purists

FAQ

Q: Does this work with non-Keurig pods? A: Yes, any standard K-Cup compatible pod works. You lose BrewID auto-tuning, but the Multistream extraction still improves flavor.

Q: Can I brew without the app? A: Absolutely. The machine has manual buttons for cup size, strength, and hot water. The app only adds remote scheduling, recipe suggestions, and firmware updates.

Q: How often does the descaling light trigger? A: Every 250 brews or so. The process takes about 20 minutes with Keurig’s descaling solution. Expect to do this every 3–4 months with regular use.

The Verdict

Buy it if you want noticeably better-tasting Keurig coffee and don’t mind occasional app frustrations. The Multistream tech is a genuine upgrade, and the large tank is a quality-of-life win.

Skip it if you’re on a budget, hate tech troubleshooting, or just want a simple cup without smart features.

Rating: 3.7/5 — A solid brewer held back by finicky Wi-Fi and a weak small-cup setting. Worth $131 if you’ll actually use the smart features; overpriced if you won’t.

Where to Buy

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Last updated: 2026-08-06. Ratings and prices current as of review date. Verify on Amazon before purchasing.