Masterbuilt 30-inch Digital Electric Smoker review: the simplest low and slow
Set the board anywhere from 100 to 275°F and there is no fire to manage. That range covers everything low and slow and nothing that needs a crust, which is the whole trade.
Verdict7 out of 10
Pros
- Settable 100 to 275°F range with the floor published as a spec, not implied
- 710 square inches across four chrome-coated racks in a cabinet 23.6 inches wide
- No fire to manage: an element under a digital control board
- Assembled width, height and depth all published, so patio planning is real
Cons
- The board stops at 275°F. Nothing on this machine will sear.
- 1 year warranty
- No per-rack area, no rack dimensions, no wattage and no weight published
Who this is for
- Ribs and pork shoulder on a schedule, with an outlet close by and no interest in tending a fire
- Small-footprint smoking: four racks stacked over 23.6 by 22.8 inches of patio
Who should skip it
- Anything that needs a crust. 275°F is the ceiling on every setting, and pairing it with a grill is the only fix.
- One machine for smoking and grilling. That is a pellet grill question, not an electric cabinet question.
| Fuel | Electric |
|---|---|
| Total cooking area | 710 sq inAcross the smoker's four racks. Masterbuilt does not publish a per-rack figure. |
| Smoking racks | 4 |
| Temperature range | 100 to 275 °FSettable range on the digital control board. |
| Grate material | Chrome-coated |
| Assembled width | 23.6 in |
| Assembled depth | 22.8 inMasterbuilt labels this dimension 'Length'. It is the front-to-back measurement, shown here as depth. |
| Assembled height | 42.1 in |
| Warranty | 1 year warranty |
| Color | Black |
Specifications from the manufacturer and named third parties. Last read 2026-07-26.
The Masterbuilt 30-inch Digital Electric Smoker is the simplest low-and-slow machine this site covers: set the digital control board anywhere from 100 to 275°F and there is no fire to manage at all. Buy it if smoking is the whole job. The same number is the hard limit, because 275°F sears nothing, and the smoker is not trying to. Masterbuilt publishes 710 square inches across four racks, a full set of assembled dimensions and a 1 year warranty. What it does not publish matters too, and this page names those gaps as it goes.
What temperature range does the Masterbuilt 30-inch electric smoker run?
100 to 275°F, settable on the digital control board. Masterbuilt publishes it as a range in the specs section, metric equivalent included at 37 to 135°C.
Both ends of that range are the review. The floor is a real spec: Masterbuilt commits to 100°F in print rather than leaving the low end vague. The ceiling carries the argument. The cuts that made barbecue, ribs, pork shoulder, brisket, all cook inside this range, so a 275°F maximum costs nothing on a smoking day. It costs everything the moment the plan changes, because no setting on this board will crisp poultry skin or put a crust on a steak.
Masterbuilt does not publish a wattage for the element, so this page makes no claim about how fast the cabinet recovers after the door opens.
How much cooking space does the Masterbuilt 30-inch have?
710 square inches, spread across four chrome-coated racks. Masterbuilt publishes that number as the total across all four and does not break it down per rack, so no per-rack figure appears here.
The counting basis matters before 710 gets compared to anything. A vertical cabinet counts every shelf. Most grills on the pellet grills and smokers page publish a main grate plus an upper rack, and some makers publish only the main grate. Totals counted differently do not belong in the same sentence.
The shape matters as much as the number. Four stacked racks hold a lot of ribs and pork butts. What they do not hold is anything wider than one rack, and Masterbuilt does not publish rack dimensions, so a whole packer brisket is a measure-first question, not an assumption.
Can the Masterbuilt electric smoker sear or grill?
No. The board stops at 275°F and there is no flame anywhere in the cabinet. Nothing about this machine puts a crust on a steak, and Masterbuilt does not pitch it that way.
Treat that as a division of labor rather than a flaw. If the smoker is allowed to be a specialist, a kettle covers the hot side of the patio, and the Weber Original Kettle 22 is the obvious partner. If one machine has to do both jobs, that is a pellet grill question, and the pellet vs electric vs propane guide walks that decision properly.
How big is the Masterbuilt 30-inch smoker?
23.6 inches wide, 42.1 inches tall and 22.8 inches deep, assembled, by Masterbuilt's published dimensions. One footnote on the depth: Masterbuilt labels that 22.8 inch dimension Length on its spec table. It is recorded here as front-to-back depth, and the number itself is exactly as published.
Masterbuilt does not publish a weight for the assembled cabinet. If the smoker has to go up stairs or into a truck bed, get a figure from Masterbuilt in writing first. The cabinet also needs to reach power, and Masterbuilt does not publish a cord length, so measure the run to the outlet before picking the spot.
Should you buy the electric or the propane Masterbuilt?
Masterbuilt builds the same cabinet idea around a propane burner in the 40-inch ThermoTemp, and the electric vs propane comparison puts both spec sheets side by side. The short version: electric trades tank swaps for a cord. If the smoking spot has an outlet, the electric cabinet is the lower-effort machine. If the spot is a campsite or a tailgate, the cord is a dealbreaker and the decision makes itself.
What is the warranty on the Masterbuilt electric smoker?
1 year, published on the product page. Read Masterbuilt's terms for what each part carries. This record holds the headline number.
There is less machine here to fail than in a pellet grill, no auger, no firepot, no controller-driven fire to keep lit. But the term is the term, and the element and the control board are the whole product. Keep the model number handy for the support call: MB20070421.
Is the Masterbuilt 30-inch electric smoker worth it?
Yes, on one condition: smoking has to be the entire job. Set the board, load the racks, and the 100 to 275°F range covers everything low and slow without a fire to manage. Four racks over a footprint 23.6 inches wide make it an easy fit on a small patio.
Skip it if any part of the plan says sear, because no setting changes the 275°F ceiling, and skip it if one machine has to cover the whole cookout. That buyer should read the pellet vs electric vs propane guide first and the electric vs propane comparison second. The rest of the field is on the pellet grills and smokers page. A cabinet that does one thing is easy to recommend exactly as far as that one thing goes.