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Deal.ai › Mainstays › Kitchen & Dining
Mainstays
Mainstays 18-Cup Popcorn Machine

Mainstays 18-Cup Popcorn Machine

4.3(408 ratings)

Best price now

$24.88at WalmartChecked 53 min ago

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Price facts

  • Lowest price today: $24.88 at Walmart (checked Nov 11, 2026).

Our take on the Mainstays 18-Cup Popcorn Machine

The Mainstays 18-Cup Popcorn Machine is a countertop electric popper with a 700W heating base, a clear popping bucket and a built-in rotating stirring rod. Its 2-in-1 lid flips over to become a serving bowl, and the whole unit nests inside that bowl once cool. It suits families and movie nights that want one big batch without a stovetop or a kettle-style theater machine. Against hot-air poppers it trades crispness for volume and oil-based flavor; against kettle poppers it is simpler and lighter but less sturdy. Owners like the one-touch start and the big batch, and many find the plastic lid and thin stirring rod the weak points.

Best forFamily movie nightsGame-day and party snackingPeople who want one-touch, oil-popped cornSmall kitchens that need nesting storage
Pros
  • Pops up to 18 cups in one batch
  • One-touch start with no settings to learn
  • Rotating stirring rod helps move kernels through the heat
  • Clear bucket lets you watch the popping
  • Lid doubles as a serving bowl
  • Nests into the bowl for compact storage
Cons
  • Lid does not stay attached when flipped as a bowl
  • Plastic dome feels flimsy to many owners
  • Butter vent lid does not attach, so butter spills when flipped
  • Thin stirring rod leaves kernels at the edge unpopped
  • Flipping the hot unit is awkward and risky

Mainstays 18-Cup Popcorn Machine prices at every store

  • WalmartNew

    Availability unknown

    $24.88+ $6.99 shippingChecked 53 min ago
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Also available at

  • WalmartCheck price at Walmart

Store links may earn us a commission. Price via Klarna.

Mainstays 18-Cup Popcorn Machine price history

Lowest price we've seen: $24.88 on Nov 11 at Walmart. Tracked across 1 store since Nov 11.

What reviewers say

  • 4.3 / 5408 ratings

Buyers rate it well for easy one-touch popping, fast batches and the large 18-cup capacity. Complaints center on the flimsy plastic lid, the butter vent that will not stay on, and the thin stirring rod that misses kernels near the edge.

What people mention
  • Ease of usePraisedOwners say the one-touch start makes popping effortless.
  • Batch sizePraisedThe 18-cup capacity is called enough for family movie nights and gatherings.
  • Lid fitCriticisedThe lid does not stay attached when flipped over to use as a bowl.
  • Build qualityCriticisedThe plastic dome is described as flimsy and brittle.
  • Stirring rodCriticisedThe rod is thin and does not reach kernels at the edge, leaving some unpopped.
  • Butter ventCriticisedThe butter-melting vent lid does not attach, so butter spills when the lid is flipped.

From Walmart

  • Makes 18 cups of popcorn at once, enough for family movie nights and gatherings
  • Lid flips over to become a serving bowl
  • Rotating stirring rod stirs kernels for better popping
  • Unit nests inside the serving bowl after cooling to save cabinet space
  • Simple one-touch start
  • Clear bucket lets you watch the popping process
Materials
Plastic
Sizing
Lid functions as a serving bowl but detaches when flipped over
Returns
Free 90-day returns
Shipping
Sold and shipped by Walmart.com; delivery and pickup available
In the box
Popcorn machine, 2-in-1 serving bowl lid, Stirring rod

About the Mainstays 18-Cup Popcorn Machine

The Mainstays 18-Cup Popcorn Machine is an electric popcorn popper that makes up to 18 cups of popcorn per batch. It is built of plastic and has a clear bucket, so the popping can be watched as it happens. A built-in rotating stirring rod turns through the kernels during popping to help improve popping performance.

The machine starts with one touch and runs on 700W. The 2-in-1 lid flips over and detaches to become a serving bowl. Once the unit has cooled, it nests inside the serving bowl for storage, which helps save cabinet space.

Capacity
18 cups
Power
700W
Color
Blue
Material
Plastic
Operation
One-touch start
Stirring
Built-in rotating stirring rod
Lid
2-in-1 lid that flips over into a serving bowl
Storage
Nests inside the serving bowl after cooling
In the box
Popcorn machine, 2-in-1 serving bowl lid, stirring rod

What buyers say

Buyers like
  • Easy to use with one-touch start
  • Pops fresh popcorn quickly
  • Large 18-cup capacity suits families and movie nights
  • Clear bucket makes the popping easy to watch
  • Good value for the price
  • Great for movie nights
Buyers complain about
  • Lid does not stay attached when flipped to use as a bowl
  • Plastic dome feels flimsy and brittle
  • Butter-melting vent lid does not attach, so butter spills when flipped
  • Stirring rod is thin and does not reach kernels at the edge
  • Flipping the hot machine over to use the bowl is tricky and risky
  • Waiting for it to cool before flipping can burn the popcorn on the hot plate

Specifications

color
BlueSource
Capacity
18 cupsSource
Power
700WSource
Operation
one-touchSource

Questions and answers

How much popcorn does it make at once?
Up to 18 cups per batch, which is roughly enough for a family movie night or a small party. It pops in one cycle, so you refill the bucket for a second round.
Does it use oil or hot air?
It is an oil popper: you add kernels and oil to the popping plate, and the 700W base heats them while the stirring rod turns. Hot-air poppers need no oil but give a drier, lighter result.
Can I melt butter in it?
There is a butter-melting vent in the lid, but owners report that lid does not attach securely and butter spills when the unit is flipped. Melting butter separately is more reliable.
How do I clean it?
Let the unit cool, then wipe the nonstick popping plate and wash the lid and bucket by hand. Do not submerge the base, which holds the heating element and motor.
How does it compare with a kettle-style theater popper?
It is lighter, simpler and nests for storage, but its plastic parts feel less sturdy than a cart-style kettle machine. Kettle poppers make crunchier corn in bigger batches and cost more.
Where do I store it?
Once cooled, the unit nests inside the flipped serving bowl, so it takes up about the footprint of the bowl in a cabinet.
Where is the Mainstays 18-Cup Popcorn Machine cheapest?
At Walmart, for $24.88, as of our latest check.
What do buyers say about the Mainstays 18-Cup Popcorn Machine?
Rated 4.3 out of 5 from 408 ratings. Buyers like: Easy to use with one-touch start; Pops fresh popcorn quickly; Large 18-cup capacity suits families and movie nights. Common complaints: Lid does not stay attached when flipped to use as a bowl; Plastic dome feels flimsy and brittle.

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Buying guides that pick the Mainstays 18-Cup Popcorn Machine

  • Best replacement lids for Stir Crazy popcorn poppers

Stores we've priced the Mainstays 18-Cup Popcorn Machine at

  • Walmart deals and prices

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Stirring rod
built-in rotating stirring rodSource
Lid
2-in-1 lid converts into a serving bowlSource
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