Product · MasterBuilt
Masterbuilt 30-inch Digital with legs: window and damper
Note: This page contains affiliate links. If you buy through them we may earn a commission at no extra cost to you. Learn more
Masterbuilt's MB20070421 is the 30-inch digital cabinet raised on a leg kit. It is a sensible middle choice for a family that smokes most weekends in summer and wants a few comforts: a door window, a damper and a side chip loader. The leg kit is what sets it apart from the standard 30-inch, because it lifts the racks to a more comfortable working height.
- Cooking area
- 710 sq in
- Racks
- 4 chrome-coated
- Controls
- Digital panel, up to 135 °C
- Wood chips
- Patented side loader
- Weight
- 22.8 kg
In its favour
- A window in the door lets you watch the food without letting heat out.
- An adjustable air damper and a lockable latch give more control over smoke and heat.
- The leg kit raises the cabinet, so loading racks needs less bending.
Good to know
- No voltage or plug type appears in the listing, so confirm the UK version.
- The listing gives a top temperature of 275 °F (135 °C) but no lower limit.
Our take
Features listed by Masterbuilt
The list here is longer than on most cabinets in our guide. There are four chrome-coated racks, a removable water bowl to add moisture and catch drippings, a removable rear grease tray, an adjustable air damper and a lockable door latch on a fully insulated cabinet. A window in the door lets you look in without letting heat out.
Digital controls set the cooking time and a temperature up to 275 °F, about 135 °C. The listing does not give a minimum temperature, which matters if you want to smoke cheese at low heat.
Capacity in real terms
Masterbuilt quotes 710 square inches and gives examples: up to seven chickens, two turkeys, four pork butts or four racks of ribs. Those are maker figures and assume tight packing, but they show the box is big enough for a gathering.
With the legs fitted, the unit is about 107 cm tall, 61 cm wide and 56 cm deep. It weighs 22.8 kg, so one person can shift it across a patio when empty.
Where it fits among the Masterbuilts
The Masterbuilt 710 WiFi has practically the same rack area and adds app control and probe readings, but the listing does not mention a window or damper. The Masterbuilt MES 35B Analog is simpler still, with a dial and three racks. This model is the one for people who want to see and adjust the cook in person.
The damper deserves a word. Being able to open or close the exhaust lets you clear stale smoke or hold more in, which gives more control over flavour than a sealed box.
Cleaning and the plug question
The water bowl, grease tray and chip loader all come out, which keeps cleaning to a quick routine. The window will need a wipe after smoky sessions to stay useful. As with the other Masterbuilt listings, no voltage or plug type is stated, so confirm a UK 230 V version with the seller.
Verdict
Pick this 30-inch Digital if you like to watch the food through the door and tweak the damper yourself. Choose the Masterbuilt 710 WiFi if you would rather check progress on your phone, or the Masterbuilt 40-inch Digital if you regularly need more than four racks of space.
Compared with alternatives in: Best electric smokers in the UK
Amazon listing title: Masterbuilt® 30-inch Digital Electric Vertical BBQ Smoker with Leg Kit, Side Wood Chip Loader and 710 Cooking Square Inches in Black, Model MB20070421