Description
The BUNN GRB Velocity Brew is a 10 cup home brewer built around one idea that almost no other domestic drip machine uses: an internal stainless steel tank that holds roughly 70 ounces of water permanently at brewing temperature. You do not wait for water to heat when you brew. You pour cold water into the top, it displaces already hot water out of the tank and through the sprayhead, and the pot fills. The listing puts the price at 119.99 dollars, the part number at 38300.0064, the model year at 2008 and a first availability date of May 5, 2004.
That design decision drives everything else about the machine, including its drawbacks. Because the tank is always hot, the machine draws power continuously rather than only when brewing. Because the water is already at temperature, there is no timer and no delayed start: a machine that keeps water hot around the clock has no reason to schedule anything. If a wake up timer is your primary requirement, the programmable machines in the drip coffee maker section are a better fit and the BUNN approach will frustrate you.
Brewing System and the Always Hot Tank
The tank is the whole product. BUNN describes it as commercial grade stainless steel holding 70 ounces at temperature, and the brew action is displacement rather than pumping. Lift the lid, pour in cold water, close the lid, and hot water is pushed out immediately. There is no on switch for brewing in the usual sense, which is what the listing means by an operation mode of manual.
Capacity is 4 to 10 cups, which BUNN states as 20 to 50 ounces. That confirms the five ounce cup convention and means a full carafe is 50 ounces, not the 80 a naive reading of ten cups might suggest. The machine also brews 20 ounces to fill a travel mug, and BUNN cites two minutes for that partial fill. The thermal carafe version of the same platform, the BUNN BTXB thermal brewer, keeps coffee hot without a warming plate, which is the more meaningful upgrade within the range.
Brew Time and a Contradiction Worth Naming
The listing cannot decide how fast this machine is. The highlight bullets say it brews a full 10 cup pot in about 3 minutes. The manufacturer description on the same page says the technology brews a full carafe in 4 minutes, half the time of typical coffee makers, and footnotes that claim as based on BUNN’s own internal testing against similar machines. A third line says brews 4 to 10 cups in about 3 minutes.
Three minutes and four minutes are both in the listing and both are presented as the full carafe figure. We do not test products here, so the honest position is that the manufacturer’s own documentation gives a range of roughly three to four minutes for 50 ounces and that the faster number is the marketing one. Either figure is genuinely quick against a conventional drip machine, which typically takes eight to twelve minutes for a similar volume because it heats water on demand. The speed is real. The precision is not.
The Drip Free Carafe and the Warming Plate
BUNN makes a specific claim for its carafe: a proprietary lid and spout design that arcs the pour into the cup and wicks stray dribbles back into the carafe rather than onto the counter. This is a glass carafe on a switch activated warming plate, so the same caveat applies here as to every glass carafe machine. Coffee held on a hot plate degrades, and there is no adjustable plate temperature on this model, only an on and off switch.
The switch matters more than it sounds. Because the tank is always hot regardless, turning the warmer off does not delay your next brew. On a conventional machine, switching off the plate also switches off the machine. Here you can brew, pour, and kill the plate immediately, which is the correct way to use this brewer if you do not drink the pot quickly. The nearly identical white bodied version, the BUNN GRW Velocity Brew, uses the same platform if the black finish is not to your taste.
Sprayhead, Filter Basket and Extraction
The sprayhead is described as commercial style and multi stream, showering water across the bed of grounds rather than dribbling it into the centre. Paired with the large flat bottom filter and funnel, this is the part of the design with the most defensible effect on flavour. A flat bed with even water distribution extracts more uniformly than a cone with a single point of entry, which is why commercial batch brewers use this geometry.
The specification block lists filter type as reusable. That contradicts the rest of the listing, which describes a large flat bottom paper filter and funnel and instructs owners to replace the sprayhead and brew funnel as maintenance items. The GRB is a flat bottom paper filter machine. Treat the reusable label as a data entry error and buy flat bottom papers, not the cone shapes stocked for most other drip brewers.
Specification Errors on This Listing
This listing carries more importer noise than most and it is worth going through it plainly. Specific uses for product is given as coffee brewing and espresso. This machine cannot make espresso. It has no pump, no portafilter and no pressure system of any kind. Related to that, the manufacturer description opens with a note about coarse grind, insufficient tamping and inadequate pressure for a proper brew, and about reprogramming as grind size changes. None of that describes a gravity fed drip brewer. It is espresso machine copy pasted onto the wrong product page.
The dimensions disagree with themselves. The specification block gives 7.1 inches deep by 13.8 wide by 14.3 high, while the description text says 14.8 high by 7.1 wide by 13.8 deep. Package dimensions of 16 by 14.75 by 9 inches describe the shipping box, not the machine. Package weight is 3.97 kilograms, roughly 8.75 pounds, and no item weight is given at all, so the machine’s own weight is unknown here. Recommended uses lists traveling, which is not a sensible use for a 14 inch tall brewer with a permanently heated tank.
What the Specifications Do Not Settle
No wattage is given, which is the number that actually matters on a machine that keeps 70 ounces hot around the clock. Standby power draw is the honest cost of this design and the listing is silent on it. There is no brew temperature figure either, although BUNN’s separate copy for the BX model in the same family cites 200 degrees Fahrenheit as the tank target.
Nothing on the page addresses descaling, which is the central maintenance question for a machine with a permanently full hot tank in a hard water area. Scale accumulates in the tank whether or not you brew. The warranty is stated as 3 years limited, and country of origin as the United States with the machine described as designed and assembled there. Whether that means domestic components is not something the listing establishes. Owners considering long term upkeep should read the descaler and cleaner reviews before the first year is out.
Who It Suits and Who Should Look Elsewhere
This suits a household that brews at least one full pot every day, values speed above programmability, and does not mind a machine that is always drawing a little power. Offices and busy family kitchens are the natural home for it. The flat bed and multi stream sprayhead give it a genuine extraction advantage over cheap cone brewers, and BUNN’s three year warranty is longer than most of the category.
It suits you badly if you brew intermittently, because the tank stays hot for a pot you are not making. It suits you badly if you want a wake up timer, since the design forecloses one. And it suits you badly if you want temperature and pour control, in which case a manual method or a machine with a documented brew profile is the better answer. Readers who want speed plus certified brew temperature should compare it against the Technivorm Moccamaster KBGV Select, which publishes the figures BUNN leaves out.
