Masterbuilt® 30-inch Digital Electric Vertical BBQ Smoker with Leg Kit
- Smoker
- Corded electric
- Electric
- Alloy Steel
- More reviewed than 89%
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How it ranks among the 19 smokers we track
4.2★ across 2,600 Amazon ratings, Bayesian-smoothed toward the category average.
2,600 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
Modest tracked demand last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 19 smokers we track - how the scorecard works · full smokers data report. Confidence: medium - useful but incomplete evidence.Last refreshed Jun 21, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
The Masterbuilt MB20070421 is a 30 inch digital electric vertical smoker with 710 square inches of cooking space across four chrome-coated racks, a side wood chip loader, and digital time and temperature controls up to 275°F.
- 710 square inches across 4 chrome-coated racks
- Digital control up to 275°F
- Side loader adds chips without opening the door
- Insulated cabinet with lockable door latch
Who it's for
Fits someone who wants a set it and forget it smoker for weekend batch cooking of chicken, pork, or ribs without babysitting a charcoal fire. Less suited to anyone chasing tight, competition-grade temperature control, since owner testing found real drift around the set point.
What buyers say
From Amazon customer reviews.
Owners consistently call assembly and daily operation easy, and several say the side chip loader and steady output make it good for weekly batch cooking of chicken, pork, and fish. The most detailed critical review measured the digital control drifting more than 3 degrees off its 275°F set point over a third of a test run. A separate owner reported the control panel corroding from moisture trapped inside after only two uses, with rusted screws found on teardown. Another buyer rated it just 3 stars despite liking the constant temperature versus their old propane unit, citing instructions that don't list required tools or clearly number the parts.
Strengths and trade-offs
Drawn from this product's published specifications.
- Side loader adds smoke without opening the door
- 710 sq in fits multiple chickens or rib racks
- Owners describe assembly and daily use as straightforward
- Temperature drifted more than 3 degrees off target
- Control panel failed from trapped moisture after light use
- Assembly instructions unclear on required tools
Performance notes
The side wood chip loader is the feature owners single out, since it lets you add smoke flavor without opening the main door and losing heat. Digital controls set time and temperature up to 275°F, though one owner's own testing found the actual chamber temperature swinging more than 3 degrees off target for a third of a cooking session. The insulated, lockable door is meant to hold in that heat and smoke, and a removable water bowl and rear grease tray handle moisture and cleanup.
Specifications
| Brand | Masterbuilt |
|---|---|
| Model | MB20070421 |
| Dimensions & fit | |
| Item Weight | 50.3 pounds |
| Item Dimensions D x W x H | 22 × 24 × 42 inches |
| Power & efficiency | |
| Power Source | Corded electric |
| Fuel Type | Electric |
| Construction & materials | |
| Outer Material | Alloy Steel |
| Inner Material | Alloy Steel |
| Color | Black |
| Included components | |
| Included Components | Digital Electric Smoker |
| Other details | |
| Part Number | MB20070421 |
| Item Type Name | Digital Electric Smoker |
| Form Factor | vertical |
Other Masterbuilt smokers
How it compares
This product against the closest alternatives we track in smokers.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Masterbuilt® 30-inch Digital Electric Vertical BBQ Smoker with Leg KitThis product | 4.2 / 5 | 2,600 | 4.0 / 5 |
| Traeger Grills TFT18KLD Ranger | 4.5 / 5 | 981 | 4.2 / 5 |
| Pit Boss 850 Navigator Series WiFi & Bluetooth Wood Pellet Grill & SmokerPIT Boss | 4.6 / 5 | 35 | 4.0 / 5 |
| Z GRILLS 2026 Electric Pellet Smoker & GrillZ Grills | 4.6 / 5 | 47 | 3.9 / 5 |
| MFSTUDIO Heavy Duty Charcoal Wood Offset Outdoor Smoker GrillMfstudio | 4.3 / 5 | 225 | 3.8 / 5 |
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Questions about the Masterbuilt MB20070421
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
How much cooking space does the Masterbuilt MB20070421 have?
It has 710 square inches spread across four chrome-coated racks, enough for up to 7 chickens, 2 turkeys, 4 pork butts, or 4 racks of ribs at once.
What temperature does the Masterbuilt MB20070421 smoker reach?
The digital control sets time and temperature up to 275°F, though one owner's own measurements found it drifting more than 3 degrees off that set point part of the time.
Can you add wood chips without opening the smoker door?
Yes, the side wood chip loader is designed to let you top up chips without opening the main door, which keeps heat and smoke from escaping.