Mueller Ultra-Stick vs. Chefman Cordless Side-by-Side Comparison

Tina Pham
Tina Pham
Reviewer
Nguyen Ntk
Nguyen Ntk
Visual Specialist
Reviewed
Our recommendations are made independently through research and testing following our review procedure. We may receive commissions from purchases made via our links at no additional costs to you.
Tested Using Methodology v1.0
Updated Nov 28, 2022
Tested Using Methodology v1.0
Updated Dec 1, 2022
The Mueller Ultra-Stick Immersion Blender Review
Chefman Cordless Immersion Blender In-depth Review
Blender type
immersion
immersion
Power
500W
0W

Our Verdict

7.2
Overall Score
  • Performance (50%)
    7.3/10
  • Design (20%)
    6.8/10
  • Usability (30%)
    7.4/10
8.0
Overall Score
  • Performance (50%)
    7.7/10
  • Design (20%)
    7.4/10
  • Usability (30%)
    8.8/10

With the exception of the hot soup test, these two immersion blenders shared the same performance quality. For the soup test, the Chefman Cordless churned out a smooth batch of puree in only 30 seconds. In the same time frame, meanwhile, the Mueller Ultra-Stick left us with a lot of unprocessed chunks. 

The Chefman's materials are of a higher quality, nullifying the cheaply plastic feel of the Mueller Ultra-Stick. Its design also feels more refined overall. In terms of usability,​ the Chefman Cordless is more reliable to use. It works more simply, portably, and conveniently, too. 

If you simply want an immersion blender for basic tasks, the Mueller Ultra-Stick is not a bad choice, and it offers a few capabilities that are not present in the competition thanks to the extra whisk attachment. However, for a few extra pennies, the Chefman Cordless will make a difference.

Performance

7.3
Performance Scores
  • Hot Soup Purée (35%)
    7.0/10
  • Frozen Fruit Smoothie (30%)
    7.0/10
  • Mayonnaise (15%)
    8.5/10
  • Almond Milk (15%)
    7.5/10
  • Whipped Egg-Whites (5%)
    7.0/10
7.7
Performance Scores
  • Hot Soup Purée (35%)
    7.0/10
  • Frozen Fruit Smoothie (30%)
    9.0/10
  • Mayonnaise (15%)
    8.8/10
  • Almond Milk (15%)
    8.5/10
  • Whipped Egg-Whites (10%)
    0/10
7.0

Hot Soup Purée

7.0
Mueller Ultra-Stick Hot Soup
The Mueller Ultra-Stick Hot Soup Purée 1
  • Pureeing Time: 30 seconds
  • Result: Slightly chunky
  • Suction: Tightly

Despite being a low-priced blender, the Mueller Ultra-Stick wasn’t any slower than the others we tested. It took about 30 seconds to yield two servings of pureed soup packed with carrots, pumpkin, and parsley.

That said, it wasn’t so good at drawing ingredients toward its blades, so we needed to move it around for an even blend. Moreover, it sucked tightly to the pot’s bottom, which didn’t cause as much spatter as the Cuisinart, but did cause small scratch marks on our cookware’s surface. It also made it very challenging for us to stir with the blending wand.

Our Mueller soup’s texture was acceptable but not the silkiest; there were still several large chunks of veggies left behind.

The Chefman Cordless Immersion Blender Hot Soup Purée
The Chefman Cordless Immersion Blender Hot Soup Purée 1
  • Pureeing Time: 30 seconds
  • Result: Smooth
  • Suction:  Slightly

The Chefman managed to create a serving of hot soup in 30 seconds. The soup wasn’t puréed to perfection since there was still a considerable amount of food flakes left behind, but for the most part, we were pleased with its smoothness. If you prefer your purée to be smoother, blend longer.

7.0

Frozen Fruit Smoothie

9.0
The Mueller Ultra-Stick Smoothie Test
Mueller Ultra-Stick Smoothie 1
  • Blending Time: 1 min 15 secs
  • Result: Chunky
  • Suction: Slightly

To ensure this portable machine can do the work of a full-sized blender for making smoothies, we designed this specific test for it. We would award it corresponding points if it could create a homogeneous mixture of just kale and frozen fruit. Disappointingly, we found that the Mueller Ultra-Stick isn’t great at blending solid fruit and leafy vegetables. 

In this task, it had a very hard time breaking up the ingredients. This caused it to demand up to 1 min 15 secs to finish the test. 

And although the Turbo mode is intended to give the blender ​​an extra boost at max speed, we noticed the speed increment wasn’t enough to make any difference. Our smoothie came out pretty smooth, but there were many unprocessed chunks of mango. It was also a bit grainy due to a mass of tiny leafy bits.

As this blender shouldn’t run for longer than 60 seconds at the time to avoid damage, we took a break after 30 seconds. In the meantime, we used a spatula to dislodge the food that lodged in the blade guard.

The Chefman Cordless Immersion Blender Smoothie
The Chefman Cordless Immersion Blender Smoothie 1
  • Blending Time: 1 min 10 secs
  • Result: Smooth
  • Suction: No

At the highest speed setting, our Chefman broke down all the ingredients quite easily — better and faster, in fact, than we expected from a blender in this segment. The test smoothie came out with a satisfying texture, combining smooth, pulverized fruits with the green of kale for a nice, chilled mouthfeel.

8.5

Mayonnaise

8.8
The Mueller Ultra-Stick Mayonnaise Test
Mueller Ultra-Stick Immersion Blender Mayonnaise Test
  • Emulsifying Time: 1 mins 45 secs
  • Result: Smooth
  • Suction: No

Although the Mueller’s whisk attachment has thin, floppy wires, it got the job done in less than two minutes. That was 10 seconds faster than the Braun, whose whisk is more sturdy and springy. It was nearly as fast as the high-end Vitamix and handily beat the cordless KitchenAid by a full minute. 

It was also easier to clean. For the most part, its mayonnaise tailings rinsed off easily under our running tap. Using the blending shafts, on the other hand, caused the food to get clogged in the blade housing. As such, it was very challenging for us to scrub off the residuals on the blade’s backsides.

The Chefman Cordless Immersion Blender Mayonnaise
The Chefman Cordless Immersion Blender Mayonnaise 1
  • Emulsifying Time: 1 min 30 secs
  • Result: Smooth
  • Suction: No

Emulsifying with the blending shaft, this Chefman cordless blender passed the mayonnaise test within a minute and a half, which was slightly faster than average. The final mayonnaise looked smooth and was well emulsified, sharing a similar texture with those produced by a whisk attachment.

7.5

Almond Milk

8.5
  • Grinding Time: 1 mins 5 secs
  • Result: Coarse
  • Suction: Tightly

Grinding raw nuts shouldn’t be a challenging task for any hand blender. However, our Mueller couldn’t perform any worse, though part of the reason is due to our blending jar — its small size caused the liquid to overflow all over the countertop every single time we moved the blender. So if you intend to use this blender to prepare watery drinks, it’s best to use a bigger container. 

None of the blenders we tested could avoid suction, but the Mueller’s was so strong that it was hard to stir or withdraw the wand, and when we lifted it up the container came with it. These things caused the liquid to easily overflow.

Not only that, but this blender didn’t grind finely enough for a creamy drink. Our almond milk was drinkable, but quite watery and not as sweet as others.

The Chefman Cordless Immersion Blender Almond Milk
  • Grinding Time: 1 min 10 secs
  • Result: Very Fine
  • Suction: Yes

The Chefman cordless device may not be a bad option when you’re making nut milk. Just make sure to use a blending beaker with sufficient capacity. 

Our drink was creamy and packed with characteristic almond flavor so we think you will love it as much as we do. During our test, the blender did, unfortunately, suction itself to the beaker's bottom, causing the mixture to splatter every time we moved the blending wand. However, this wasn’t only about the suction — things would work better if we used a larger beaker.

7.0

Whipped Egg-Whites

0.0
The Mueller Ultra-Stick Whipped Egg-Whites 1
The Mueller Ultra-Stick Whipped Egg-Whites
  • Beating Time: 2 mins 37 secs
  • Result: Stiff
  • Suction: No

Before we began this test, we presumed that all the whisk attachments would perform well at  beating egg-whites, though some may be more efficient than others. Surprisingly, Mueller's performance proved us wrong. 

First, it had an advantage over the blending wand in incorporating enough air into the egg whites, allowing the egg-protein to form a stiff, airy foam. What was until its motor seriously overheated several times, requiring us to let it stop and cool down. This issue didn’t regularly occur with the other blenders, and spending so long with the Mueller was tiring. 

Even worse, after this test the whisk attachment had lost its original bulbous shape. The strands of looped wire were all out of their initial order, which would impair its performance in the next emulsifying and beating tasks.

The Chefman Cordless Immersion Blender Whipped Egg-Whites
The Chefman Cordless Immersion Blender Whipped Egg-Whites 1
  • Beating Time: N/A
  • Result: N/A
  • Suction: N/A

This machine’s blending shaft was unable to beat the eggs, but it shares this shortcoming with most blending shafts. If you want your machine to properly whip the eggs, we recommend choosing one that comes with a whisk attachment, such as the Braun MultiQuick-5. A whisk’s many thin wires will uncurl the protein strands of the egg whites and incorporate air into them. That way, stiff eggy peaks are able to form and stay stable.

Design

6.8
design Scores
  • Blending Shaft (30%)
    7.0/10
  • Build Quality (60%)
    7.0/10
  • Power Cord (5%)
    10/10
  • Beaker (5%)
    0/10
7.4
design Scores
  • Blending Shaft (30%)
    7.0/10
  • Build Quality (60%)
    8.0/10
  • Battery (5%)
    10/10
  • Beaker (5%)
    0/10

In the Box

Mueller Ultra-Stick In the Box
  • Motor body 
  • Blending shaft 
  • Whisk attachment
  • Milk frother  
  • User manual
The Chefman Cordless Immersion Blender In the Box
  • Motor body 
  • Blending shaft 
  • Blade guard
  • Blade edge guard
  • Charger adapter & USB cord 
  • User manual

Beyonds the two main components, the Chefman also comes with a pot & pan guard to prevent scratches on your cookware and a blade guard so you can cover the blade entirely while your blender is not in use.

Dimensions

Mueller Ultra-Stick Immersion Blender Dimensions
  • Height:
    15.6" (39.6 cm)
  • Width:
    2.8" (7.1 cm)
  • Weight:
    2.2 oz (61 g)
  • Shaft Length:
    7.7" (19.6 cm)

The Mueller Ultra-Stick has a balanced weight that makes it feel good to use. Since its blending shaft is long enough to reach the bottom of even deep pots, making hot puree soups is pretty much exactly what this machine is designed for. With this compact design, it is also very easy to tuck away in your cabinet when not in use.

The Chefman Cordless Immersion Blender Dimensions
  • Height:
    16.4" (41.7 cm)
  • Width:
    2.3" (5.8 cm)
  • Weight:
    1.4 oz (40 g)
  • Shaft Length:
    8.2" (20.8 cm)

This Chefman is the right size to fit comfortably in your palm. At 1.4 pounds, it is a bit on the light side, but so are most immersion blenders that are made of standard plastic.

7.0

Build Quality

8.0
The Mueller Ultra-Stick Immersion Blender Construction

The Mueller Ultra-Stick is mostly made of plastic reinforced with brushed stainless steel, so there is no chance of plastic’s chemicals leaching into your food. Besides being corrosion-resistant, this blender’s unique design gives it an elegant look, though it doesn’t feel as sleek as its higher-priced peers.

The blender has two buttons and a speed control knob. All seem straightforward to use, but are cheaply made. To reduce spatter-related issues, the blades are surrounded by a metal guard. We like this idea, but in our experience, this type of guard can scratch non-stick cookware.

The Chefman Cordless Immersion Blender Build Quality

The Chefman provides a medium level of quality at a very reasonable price. With a black-clad exterior all around, the motor looks charming and notably elegant. After a course of testing, we found a smattering of tiny scratches around this part, but they’re not too noticeable unless you look closely.

7.0

Blending Shaft

7.0
Mueller Ultra-Stick Blades
  • Material:
    Stainless steel
  • Type:
    Sharp Blade
  • Guard Material:
    Stainless steel
  • Blade Count:
    2
  • Removable:
    No
  • Dishwasher Safe:
    Yes

The blades come relatively sharp, but they look flimsy and may dull under regular use, causing the machine to blend less efficiently. Our Mueller’s blades even slightly deformed after the frozen smoothie test.

The Chefman Cordless Immersion Blender Blending Shaft
The Chefman Cordless Immersion Blender Blending Shaft 1
The Chefman Cordless Immersion Blender Blending Shaft 2
  • Material:
    Stainless steel
  • Type:
    Sharp blade
  • Guard Material:
    Stainless steel
  • Blade Count:
    2
  • Removable:
    No
  • Dishwasher Safe:
    Yes

The whole blending shaft is made of standard stainless steel, but after several uses, we nevertheless found a small rust spot on the blade guard. We’ve tested a myriad of immersion blenders and noticed that rust is rare. We can’t say for sure whether the rust will spread, but if it does, the machine’s integrity and appearance will be severely impaired. 

The level of craftsmanship of the blade guard is okay overall but it could stand some improvements. The holes in the guard, for instance, look non-uniform and slightly misshapen. 

The blade has two prongs: one is sharp and the other is dull. It’s sturdy enough to puree nearly all kinds of soft foods. It can even make quick work of emulsifying, so you can prepare mayonnaise or any other sauce that needs a creamy, stable base.

Not Included

Beaker

0.0
  • Material:
    N/A
  • Capacity:
    N/A
  • Measurements:
    N/A
  • Weight:
    NaN oz (NaN g)
  • Height:
    N/A
  • Dishwasher Safe:
    N/A
  • Tamper Included:
    N/A

  • Material:
    N/A
  • Capacity:
    N/A
  • Measurements:
    N/A
  • Weight:
    NaN oz (NaN g)
  • Height:
    N/A
  • Dishwasher Safe:
    N/A
  • Tamper Included:
    N/A

The set doesn’t include a blending beaker, but you can purchase this add-on from any retailer.

10

Power Cord

The Mueller Ultra-Stick Immersion Blender Cord
  • Cord Length:
    4.8 ft
  • Type:
    2-prong plug
  • Detachable:
    No

The power cord is long enough to easily reach our nearby outlets. Like other immersion blenders, there is no place to hide the extra cord, but it has a small loop allowing you to hang the whole blender on a hook.

Whisk Attachment

Extra Accessories

Not Included
The Mueller Ultra-Stick Immersion Blender Whisk Attachment
  • Material:
    Stainless steel
  • Dishwasher Safe:
    Yes
  • Removable:
    Yes

With the whisk attachment, your blender can be a nice replacement for a hand mixer for certain tasks, such as whipping cream, beating egg whites, and emulsifying sauces. That being said, we don’t think this additional tool can ensure high durability, given its poorly-built quality.

  • Material:
    N/A
  • Dishwasher Safe:
    N/A
  • Removable:
    N/A

No extra blending attachments are included.

Milk Frother

Extra Accessories

The Mueller Ultra-Stick Immersion Blender Milk Frother
  • Material:
    Stainless steel
  • Dishwasher Safe:
    Yes
  • Removable:
    Yes

We haven’t performed any test on the milk frother, but we’re quite sure this attachment can make foam for your drinks. However, we suppose it will not live up to the expectations of serious latté lovers.

Speed and Controls

Mueller Ultra-Stick Speed and Controls
  • Control Type:
    Press and Rotate
  • Min Speed:
    12,550 RPM
  • Max Speed:
    14,640  RPM
  • Presets:
    No
  • Noise Level:
    78 dB
  • Digital Display:
    No
  • Pulse Mode:
    Yes

The Mueller Ultra-Stick has an intuitive interface, with two buttons and an easy-to-rotate speed control knob. During operation, you can adjust the speed in eight increments by gently rotating the speed control knob. However, as we found out during our testing, there is barely a difference between the Turbo mode and the highest speed in terms of power.

The Chefman Cordless Immersion Blender Speed and Controls
The Chefman Cordless Immersion Blender Speed and Controls 1
The Chefman Cordless Immersion Blender Speed and Controls 2
The Chefman Cordless Immersion Blender Speed and Controls 3
  • Control Type:
    Press-button
  • Min Speed:
    10.500 RPM
  • Max Speed:
    14.333 RPM
  • Presets:
    No
  • Noise Level:
    72 dB
  • Digital Display:
    No
  • Pulse Mode:
    No

You control this blender’s multiple speeds by varying the pressure on the trigger switch in front. The harder you press, the faster the blade will spin. There is also the safety lock button on the device’s rear. Both buttons must be engaged before the motor will turn. Fortunately, both of them are very sensitive, so you won’t need much pressure to get the job done. 

Your Chefman doesn’t have a pulse function, but you can still chop food evenly by pressing and releasing the buttons in short intervals.

Usability

7.4
usability Scores
  • Ease of Use (60%)
    7.3/10
  • Blade Assembly (10%)
    8.5/10
  • Handling (20%)
    6.5/10
  • Cleanability (10%)
    8.5/10
8.8
usability Scores
  • Ease of Use (60%)
    8.8/10
  • Blade Assembly (10%)
    9.5/10
  • Handling (20%)
    9.0/10
  • Cleanability (10%)
    8.0/10
7.3

Ease of Use

8.8

It didn’t take long for us to figure out how this blender worked. That being said, the buttons have a very awkward clicky feel. Although they’re not too stiff and demand just a light press to activate, we weren’t entirely comfortable pressing them all the way down. If you use them continuously for more than a batch, your fingertips may feel a bit tired. 

The control knob also makes the blender more complicated to use. It’s tough for one person to use the blender, adjust its speed, and hold the beaker at the same time, so we had to stop it to speed up or slow down.

Maneuvering the Chefman is particularly easy and usually doesn’t splatter ingredients around. With the exception of the almond milk test, we didn’t have much trouble with our blending motions; this blender suctioned itself only lightly to the beaker’s bottom. 

Most of our testers also praised its pressure-sensitive speed controller, though a few got frustrated trying to switch between mid-range speeds. Either way, it does take some time to get a feel for the speed controls. 

The removable plastic guard covers the metal blade housing to minimize scratches on your pots and pans. With it in place, you can be less timid with your motions.

8.5

Blade Assembly

9.5

To attach the blending wand or any blending accessories to the main body, simply line up the parts and make a quarter turn counterclockwise until you hear the unit click into place.

There is a plastic coupler that attaches the removal parts to the motor body. So far, we haven’t found any issue with this add-on. After spending several days going through hundreds of customer reviews, however, we were warned that the coupler can easily be irreparably broken.

The shaft-release button not only helps reinforce the connection between the motor housing and the blending wand, but it also allows for easier disassembly. Simply press this button and pull the blending wand to separate the two parts. Setting up the blender is straightforward as well; align the motor body housing with the blending shaft and push them together until you hear them click.

6.5

Handling

9.0
The Mueller Ultra-Stick Blade Handling

We appreciate that the Mueller is designed with an ergonomic handle to reduce hand and wrist pain. However, because the blender itself vibrated pretty violently in all five tests, our hands got tired anyway.

Our Chefman let us blend in comfort thanks to the ergonomically designed handle. It didn’t get slippery even when our hands were oily during the mayonnaise test. The stable grip it provides is meaningful, especially if your hands fatigue quickly.

8.5

Cleanability

8.0

All the removable attachments are dishwasher-safe, but we recommend you wash them by hand to prevent their finish from discoloring due to abrasive dishwasher detergents. Thankfully, the manual cleaning process isn’t so difficult.

You can either scrub off the residue under the running tap or let the machine clean itself by blending it in a mixture of dish soap and water. Either method should get it perfectly clean.

All removable parts are top-rack dishwasher safe, but we prefer to clean them by hand since it’s faster and practically effortless. Following each test, we scrubbed away the food tailings with a soapy sponge. Most of the residue rinsed off easily, including the bits stuffed up behind the blades.