Cuisinart Automatic Grind & Brew 10-Cup Thermal Coffeemaker Review: Everyday Trade-Offs

We judged the machine on the things that decide whether you keep using it: taste, how loud the grinding is, how the carafe pours and holds heat, how easy it is to fill, and how much work cleanup takes.

We looked at how the coffee tastes, how the grinder sounds, how the carafe keeps heat, and how much drying the grinder parts need, using our own judgment of the daily routine rather than a lab protocol.

Cleanup effort weighs heaviest in our judgment, because that is where grind-and-brew machines win or lose.

Cuisinart sells several machines with similar names, and shoppers mix them up. This review covers the DGB-450NAS, which is the current US product designation for the DGB-450 family. It is the 10-cup thermal version.

Model Number and Key Specifications

The numbers below are the ones we could confirm for this exact model. A rated "cup" is about 5 oz, so the 10-cup rating works out to roughly 50 oz. That is about four 12 oz mugs on paper, though the grounds absorb some water and your real yield depends on mug size and dose.

Cuisinart DGB-450NAS specs

Model	DGB-450NAS
Capacity	10 cups (about 5 oz per cup)
Carafe	Double-wall insulated thermal
Grinder	Blade, fixed medium grind
Programming	24-hour start
Small batch	1-4 cup setting
Filters	Permanent gold-tone filter and charcoal water filter
Dimensions	8.13 x 9.98 x 15.5 in (lid closed)
Warranty	Limited 3-year

How It Differs From the DGB-650BC, DGB-850 and DGB-2

The DGB-650BC is a separate, older 10-cup thermal model, not another name for the DGB-450. It is discontinued in the US manufacturer catalogue, and we do not apply its details to our machine.

The DGB-850 is also discontinued. It uses a burr grinder with a half-pound storage hopper and offers regular, bold and extra-bold strength settings, none of which the DGB-450NAS has.

The DGB-2 is a single-serve machine with a conical burr grinder and a reusable filter cup, built for one mug at a time. It is a different kind of brewer, not a smaller version of this one.

Whole-Bean Grinding and Pre-Ground Coffee

The blade grinder runs at a fixed medium grind. There is no grind-size dial, and there is no strength selector. You control strength by how many beans you add, and you add them for each batch.

When you want pre-ground coffee, put it in the filter basket and select Grind Off. This is also the quieter way to brew, and it is the backup plan if the grinder ever gives trouble.

Use either a paper filter or the permanent filter, never both together. The permanent filter can pass fine sediment, so a paper filter gives a cleaner cup if that bothers you.

Programmable Brewing and Small Batches

The 24-hour timer is the feature that makes the machine feel useful. Load the water and beans at night, set the start time, and the pot is ready when you walk in. Programming is simple and uses plain buttons.

The 1-4 setting suits a couple of mugs. Brew Pause lets you pour early, but you need to return the carafe within 20 seconds to avoid overflow.

Flavor, Consistency and Brew Temperature

Freshly ground coffee tastes satisfying from this machine, and it is the main reason to choose it over a standard drip brewer. Because the grind size is fixed, results depend on your beans and dose rather than on tuning. Once you find a dose you like, it repeats well.

We have no measured brew-temperature curve for this exact model, so we will not quote one.

Heat Retention, Pouring and Practical Capacity

The thermal carafe keeps coffee warm between servings. It does not guarantee a fixed temperature or heat for an entire day, so plan to drink within a few hours. Preheat the carafe with hot water first, which the manual recommends and which matters most for small batches.

Because the carafe is opaque, you cannot see how much coffee is left. You learn by weight and by the sound of the pour. On capacity, expect about four generous mugs from a full pot, with the caveat that the exact count depends on your mug size.

Filling, Controls and Countertop Clearance

Setup is easy. Do a water-only rinse before the first brew, then fit the filter and carafe. If the lid is not seated correctly, the machine beeps and refuses to run, which is a helpful signal rather than a fault.

The machine stands 15.5 inches tall with the lid closed. Under low cabinets, that height makes filling awkward. Pulling the machine forward on the counter makes filling and cleaning much easier.

Grinder Noise and Morning Convenience

Grinding is the loudest stage, and it is loud enough to disturb someone sleeping near the kitchen. That matters because the timer exists to brew before you wake.

If your bedroom shares a wall with the kitchen, use the timer with pre-ground coffee and Grind Off. You lose the fresh-grind advantage on those mornings, but you keep the quiet and the ready pot.

Cleaning the Grinder, Filter Basket and Carafe

Cleaning is the real cost of ownership. Steam rises into the grinder chamber, and condensation collects in the grinder cup and lid. That adds a drying step after every pot, or damp grounds can cling to the parts.

The manual says to clean and dry the removable parts after every use. You can wash the grinder basket, lid, filter basket and cover by hand or on the dishwasher's upper rack, and the carafe and its lid are upper-rack safe as well. Keep water away from the exposed motor area.

If the grinder ever runs noisily without grinding beans, routine surface cleaning may not solve it. Switch to pre-ground coffee while you sort it out.

Descaling and Routine Care

A red CLEAN indicator tells you when it is time to descale using the self-clean function. Descaling clears mineral buildup, but it does not replace washing coffee residue off the removable parts.

Replace the charcoal water filter every 60 days or 60 uses, and more often if your water is hard. We do not give a vinegar ratio here, because we have not verified one for this model. Follow the supplied manual instead.

What Works

Freshly ground coffee tastes satisfying, and programming makes a prepared morning pot convenient. The thermal carafe keeps coffee warm between servings, though it does not hold a fixed temperature or stay hot all day.

What Wears on You

Grinding is loud enough to disturb someone sleeping near the kitchen. Condensation collects in the grinder cup and lid, and the opaque carafe hides how much coffee remains. The grinder can also run noisily without grinding beans, and routine surface cleaning may not fix that.

We cannot give a typical lifespan or a failure rate for this model. Replacement grinders, grinder lids, filter baskets and water-filter holders are catalogued, though stock varies. The limited 3-year warranty covers the machine.

A grind-and-brew machine trades a little of your morning for fresher coffee. The grinder cleanup is the price.

Other Grind-and-Brew Coffee Makers

The DGB-450NAS sits in the middle of the range. The 12-cup DGB-400NAS is the cheaper sibling with a glass carafe, the same footprint and similar blade-grinder behavior. Its grinding is loud and its chamber needs cleaning after each pot. Our Cuisinart 12-cup Grind & Brew review covers that machine in full.

If you only brew one mug at a time, the DGB-2 costs more and brings its own fuss: the reusable cup must be emptied between drinks, and loose grounds can spill. Choose it for single servings, not for filling a thermal pot.

A Separate Grinder and Drip Coffee Maker

A standalone burr grinder and a simple drip brewer give you better control of grind size and fewer parts to dry inside a hot machine. The cost is two appliances and more counter space. Choose the all-in-one if you value one-button simplicity, and choose the pair if you care more about grind quality than convenience.

If the grinder noise or the drying routine sounds like too much, the 12-cup DGB-400NAS is the cheaper glass-carafe alternative with the same footprint, and a separate burr grinder paired with a plain drip brewer is the better route for grind control.