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Deal.ai › Mainstays › Milk Frothers & Steamers
Mainstays
Mainstays Milk Frother

Mainstays Milk Frother

4(5,584 ratings)

Best price now

$4.57at eBayObserved at 11:49 PM

Compared across 4 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission.

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Our take on the Mainstays Milk Frother

The Mainstays Milk Frother is a handheld, battery-powered whisk that foams milk in seconds with a single button press. It runs on 3V (two AA batteries) and comes with a countertop stand for storage. At $4.57 at eBay as of November 8, 2026, it sits at the low end of its recent price range, which is typical for a budget frother.

Best forBudget coffee drinkers who want foam without a machineSmall kitchens with little counter spaceFrothing milk for lattes and cappuccinosWhisking eggs and mixing powdered drinks
Pros
  • Very cheap: $4.57 at eBay as of November 8, 2026
  • Light at 2 oz and easy to hold with an ergonomic handle
  • One-button operation, no settings to learn
  • Cordless battery power, so it works anywhere
  • Included stand keeps it tidy on the counter
  • Handles eggs, salad dressing and powdered drinks, not just milk
Cons
  • Runs on AA batteries, so you need spares on hand
  • Handheld whisk, not a heated jug frother; warm milk only means it can be used with warm milk
  • Foam quality depends on technique and milk type
  • Small single-cup capacity

Mainstays Milk Frother prices at every store

  • eBayNew

    In stock

    $4.57Observed at 11:49 PM
    Visit eBay
  • WalmartNew

    In stock

    $6.88Verified
    Visit Walmart
  • MercariNew

    In stock

    $5.00+ $4.90 shippingObserved at 11:49 PM
    Visit Mercari
  • PoshmarkNew

    In stock

    $5.00+ $6.49 shippingObserved at 11:49 PM
    Visit Poshmark

Also available at

  • WalmartCheck price at Walmart
  • eBayCheck price at eBay

Store links may earn us a commission.

Mainstays Milk Frother price history

Lowest price we've seen: $4.57 on Nov 8 at eBay. Tracked across 4 stores since Nov 8.

What reviewers say

  • 4 / 55,584 ratings

With 4 out of 5 from 5,584 ratings, owners mostly see it as a cheap, effective frother for everyday coffee at home. Complaints center on battery use and inconsistent foam.

What people mention
  • ValuePraisedOwners say it does the job of a frother for a few dollars.
  • BatteryCriticisedReviewers note it eats AA batteries and slows as they drain.
  • Foam qualityMixedSome get thick foam, others find it thin depending on the milk.
  • Ease of usePraisedOne button and a whisk; nothing to assemble or clean beyond rinsing.
  • BuildMixedIt is light at 2 oz, which some like and others call flimsy.

About the Mainstays Milk Frother

Get ready to whip up some perfectly thick and creamy froth with the Mainstays Milk Frother! Simply immerse the stainless-steel whisk in milk (and more!) and press the power button. Soon after, you’ll have a cup of delicious milk foam to top your morning coffee, cappuccino, or latte. Plus, it’s battery-powered and ergonomically designed, making the small yet powerful Mainstays Milk Frother the perfect addition to any kitchen!

Specifications

color
BlackSource
Capacity
1 cup
Frothing Method
Whisk
Heating Capability
Yes (for warm milk)
Frothing Capacity
NA
Frothing Wand
Yes
Manual Or Automatic

Questions and answers

Is the Mainstays Milk Frother worth it?
For under $5 it is a low-risk way to foam milk at home. It will not match a steam wand or a heated jug frother, but it handles a single cup fine.
Does it heat milk?
No. It is a handheld whisk; it froths milk you have already warmed. The listing notes warm milk use, but the whisk itself does not heat.
What batteries does it take?
It runs on 3V, which means two AA batteries. Keep spares on hand, since reviewers say it drains them with regular use.
Can it froth non-dairy milk?
It can, but results vary. Barista-style oat and soy milks foam better than plain almond milk.
What comes in the box?
The frother and a countertop stand. Batteries are usually not included.
When is it cheapest?
It is already a budget item; the best new price was $4.57 at eBay as of November 8, 2026. Watch for small dips around back-to-school and holiday sales.
Where is the Mainstays Milk Frother cheapest?
At eBay, for $4.57, as of our latest check.
What do buyers say about the Mainstays Milk Frother?
Rated 4 out of 5 from 5,584 ratings.
Where can I buy the Mainstays Milk Frother?
4 stores we checked sell it, including Walmart, eBay, Poshmark, Mercari.

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Stores we've priced the Mainstays Milk Frother at

  • Walmart deals and prices

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Manual (Handheld)
Control Type
One-button operation
Depth
1.30 Inches
Height
9 in
Width
1.30 Inches
Milk Type
Milk
Beverage Type
Milk
Weight
2 oz
Base Type
Cordless
Handle Type
Ergonomic
Brewing Type
Frothing
Power Source
Battery Operated
Wattage
NA
Power Consumption
3V/1.5A
Voltage
3V
Included Accessories
Countertop stand for neat and easy storage