Bonsenkitchen 4-in-1 Immersion Blender Review

Overall Verdict
It’s hard to find much worth praising in this Bonsenkitchen hand blender, but barely anything to get upset about, either. We got a motor housing and up to three interchangeable blending attachments, plus a beaker, all for just $30, so we weren't expecting much beyond basic function, and the Bonsenkitchen can deliver exactly what we need.
Of course, it doesn’t exceed its category or try to become a distinctive standout among entry-level blenders. And in some areas, it still has plenty of room for improvement. Specifically, you can feel its motor hesitate when the ingredients get too dense, and it often takes a bit of patience to get through tougher textures. When switching to lighter tasks, such as warm soups, sauces, whipped cream, baby food, or quick smoothies with soft fruit, however, it works smoothly and stays surprisingly steady, ensuring results that are acceptable enough for most casual home cooks.
If you’re on a tight budget and only need a tool for simple blending jobs, this Bonsenkitchen 4-in-1 should add nice value to your counter.
Things We Like
- The accessory set provides plenty of flexibility
- The ergonomic handle keeps your hand comfortable during longer blending processes
- Priced competitively, it caters well to budget-conscious users
Things We Don’t Like
- The metal shaft and whisk can scuff certain cookware materials
All-in-one immersion blenders are no strangers on the market these days. Some are budget-friendly yet come equipped with all sorts of accessories; others look fancy and allow you to switch between blending, chopping, and whisking just in seconds. The Bonsenkitchen 4-in-1 sits comfortably in between. It's inexpensive, designed straightforwardly for different roles in the kitchen, and doesn’t feel behind trends. When it comes to its performance, there are a few things of its own to discuss, and we'll leave the details for the rest of this review. So, keep reading if you want to join the discussion.
7.4 Performance
We evaluated the Bonsenkitchen 4-in-1's performance based on 5 different tests. Eventually, this blender managed to pass all of them with results ranging from mediocre to respectably good. It's also worth noting that the gap between its efficiency and top-tier immersion blenders was quite large, but within its price range, what it achieved was already satisfying.
8.0 Hot Soup Purée




The first few seconds felt promising, and we could see the blades blend through the veggies effortlessly. However, soon enough, they quickly sank and locked themselves to the bottom of the beaker. For an even blend, every ten seconds, we had to pause, lifting the wand to release it, then starting again. This disrupted the flow and was really annoying.
During use, we also noticed the blender struggled to draw ingredients toward its center. The blades spun stably, but they didn't create enough motion to pull the mixture in naturally. As a result, the blending depended heavily on your own movement. Most of the time, it required us to constantly maneuver the wand, shifting it around to increase the contact between the blades and the ingredients. We don’t mind the extra effort, but a good immersion blender, like the Braun MultiQuick 7 or the Vitamix 5-speed, should almost do the thinking for you, not the other way around.
On the bright side, the soup turned out relatively silky. It had a fine, even texture that felt soft and comforting on the spoon. After straining, a few tiny flakes of residue showed up in the sieve, but it was so fine that you wouldn’t feel it on your tongue, and it certainly wouldn’t be a choking risk for your baby.
5.8 Frozen Fruit Smoothie



This was not an easy feat, so at the beginning, the blender mostly just pushed the kale around and skimmed the surface before it actually broke the ingredients down. And along the way, we had to angle and move the blender constantly to help circulation and get everything evenly pulled in.
After some blending, the mixture looked smoother but still needed a quick pause to scrape around the guard. Continuing for a bit longer, it finally reached a drinkable consistency at around one minute and fifty seconds. A few specks of kale could be seen at the end, but in general, the smoothie was smooth enough. Honestly, we would have preferred it a bit icier and more refreshing. The prolonged run time seemed to have warmed the mix just enough for the fruit to dilute slightly, softening the texture a little.
In short, we'd say the Bonsen 4-in-1 can take on frozen fruits, though it struggles to get everything smooth in one go, and sometimes, the result might not be fully consistent or finely textured.
8.3 Mayonnaise




Operating at its slowest speed, the Bonsen 4-in-1 handled the mixing fairly well. It didn't take long for the oil and egg to combine, and each passing second brought them closer to a creamy consistency without us having to do much.
Up to this point, it was among the fastest blenders we tested for making mayonnaise, with the whole batch finished in only one minute and fifteen seconds. The result was usable, slightly lighter than ideal, and not as thick as the store-bought version, but it was still stable enough not to drip off the spoon.
One thing to watch out for is that once the mayo starts to thicken, the fast-spinning whisk can make your beaker wobble a bit. So, be sure to hold the beaker firmly with your free hand while mixing. A non-slip mat or damp towel under the beaker can also help absorb vibrations, thus minimizing movement.
7.5 Almond Milk



This test went trickier than expected. Our blender could pull in the almonds and get them pulverized easily. That said, the suction caused some splatter early on, and once it drew down into the mixture, it clung tightly to the beaker's bottom, making it hard to move the wand around freely.
At the end of the process, we strained the mixture to check the pulp’s texture, and as far as we noticed, the almonds had blended quite thoroughly, which reflected the consistent blending strength of the blender as well as how respectable the milk turned out. We really liked its light nut aroma and smooth, mellow flavour.
10 Whipped Egg-Whites

This run focused on gradual whipping, starting low and increasing speed step by step to promote smoother circulation around the whisk.
Much to our surprise, the overall aeration was quick, and you can see the egg whites gradually developed into a cloud-like texture with steady whipping. The result was visually pleasing, and there was no visible separation or pooling. Clearly enough, the air had been incorporated evenly throughout the mixture. Bright white, light, and voluminous enough for most baking or topping uses, it held its lift even when the beaker was flipped upside down. It didn’t collapse when left to rest for a few minutes either.
And as it turned out, this was where this blender had an advantage over the Bonsen 2-Speed we tested—both are from the same brand, but the basic version couldn’t complete this test because it doesn’t come with a whisk attachment
7.8 Design
The design is simple at its best. Nothing fancy or exceptionally contemporary, but it has a distinctly appealing look that fits into most kitchens. The body feels solid in our hand, and the weight is balanced enough that you can blend a big batch of soup comfortably. Yet, don’t expect top-notch quality; there are still rooms for improvement.
In the Box

- Motor body
- Blending shaft
- 24-oz Beaker
- Food Processor Attachment
- Whisk Attachment
- User manual
Open the box, and you'll see all the components sitting neatly inside. Apart from the meta blending shaft, the main motor housing is also compatible with the whisk and food processor attachments. The included beaker is a nice add-on to have, too.
Dimensions

Compact and standardly-sized, the Bonsen 4-in-1 won't take up much counter space or cause any storage headaches. Besides, its blending shaft comes with a reasonable length, so you can blend right where the food is, instead of managing to angle the blender or move everything into a smaller container.
7.5 Build Quality

The build quality of this blender holds its own in the budget-friendly category. For sure, it’s not a tank that’s going to give you 10 years of regular use, and it won't wow you with premium materials or a luxury vibe, but this is expected for the price. The whole machine combines mid-grade plastic with stainless steel parts, which helps keep it both reasonably sturdy and not too heavy. Light scratches can show up over time, especially if it’s stored with other utensils, slid across rough countertops, or cleaned with abrasive sponges, yet those cosmetic scuffs absolutely don’t affect how the blender performs.
Speed and Controls



The blender gives you 20 speed settings, plus a Turbo Mode for an instant power boost. Everything is controlled through the dial on top, so switching between these speeds is often smooth and simple. At around 85 dB, it’s moderately loud, but the sound isn't too sharp, which means you won’t find it too bothersome, especially toward the short blending sessions.
7.5 Blending Shaft



The 4-prong blade assembly on the blending shaft is well-engineered, and the blades are sturdy enough that they don’t quickly become warped or lose their structure over time. The housing is supposed to protect the blades and limit splashing. However, it’s not completely foolproof; there’s still the occasional splash here and there. And due to the metal design, it can damage your cookware's surface, especially those that feature non-stick layers.
10 Beaker

We find the 24-oz beaker very convenient. Its capacity is perfect for when you only need to blend a little bit, saving you the trouble of washing a big container afterward.
10 Power Cord

The power cord has a decent length. That's why we never have to worry about tripping over a too-long cord or struggling to plug it into a faraway outlet.
Extra Accessories: Whisk Attachment

You can make the most out of your blender with this accessory. Although it won't turn your tool into a professional hand mixer, it's more than capable of handling lighter jobs, such as beating egg whites, whipping cream, and emulsifying sauces.
Extra Accessories: Food Processor Attachment

While we haven’t tested this attachment ourselves, the blender’s power rating suggests that it should be able to process small amounts of fresh veggies or raw nuts.
7.9 Usability
The blender is honestly pretty easy to live with. There are a couple of trade-offs, but none of them are serious enough to get in your way. Most things work the way you’d expect them to, and these minor issues are something you might get used to quickly.
7.6 Ease of Use
The layout is so intuitive that you can figure out how the two buttons and a speed dial work without even touching the user manual. The motor does vibrate while the blades are running fast, but your hands won't go numb unless you use it for long stretches toward extremely tough ingredients. You might notice a sealing feel as the blender pulls itself to the bottom, and spatters will occur when you manage to lift it. Hence, make sure to use a tall, spacious blending container rather than a small, narrow one. Actually, this doesn’t eliminate the suction issue, but it reduces the risk of splashing by keeping the action below the mixture's surface while you free the blending head.
9.0 Blade Assembly

Firmly push the two parts together, and in no time, the blender is ready to use. Once connected, the joint between the blending shaft and the motor housing is tight, with no obvious gaps, squeaks, or loose rattling.
As a cool feature, the release buttons let you immediately disengage the lock, so it's quick and convenient to switch between the blending attachments.
8.0 Handling

Most of the time, we get a stable and controlled experience. The handle is polished and has a smooth finish, but still provides a solid grip, even when our hands got a little greasy from making mayonnaise. Comfort is further improved by the responsive, well-placed buttons, which are positioned where your fingers naturally fall, offering an effortless press with each use. Although we generally favor grips that feature silicone coatings, the metal, lustrous surface of this blender is still quite pleasant to hold.
8.5 Cleanability
The blending shaft, along with other accessories, is safe to put in the dishwasher, but most food rinses away under warm water. For greasy mixtures like emulsified sauces, a short 15-minute soak followed by a light scrub around the blade works well. You might find it hard to reach the blade's backsides, but a small brush should make it simple. The motor housing doesn’t trap grime, so a wipe with a damp cloth is usually all it needs. As long as you don’t leave food residues to dry on it, cleanup is quick and low-effort.