What Is an Immersion Blender? | Handheld Power for Soups and More

If you have ever ladled hot soup into a countertop blender, only to deal with a sealed lid and steam pressure, an immersion blender offers a simpler path. KitchenAid notes the name comes from the action: you immerse the blades into the ingredients rather than pouring ingredients into a blender jar. It goes by other common names — a stick blender or hand blender — but the idea is the same: one-handed blending without transferring food between containers. For a gardener who cooks with fresh produce, this tool turns a pot of tomatoes or squash into a finished soup in the same pot.

What an Immersion Blender Actually Does

An immersion blender handles many of the same tasks as its countertop cousin but in a completely different format. People use it for soups, sauces, stews, smoothies, dressings, mayonnaise, baby food, and whipped cream. Its main strength is emulsification — making mayonnaise or vinaigrette by slowly blending oil into other ingredients directly in a jar or measuring cup. Because it blends in place, it also works well for small batches that would rattle around uselessly in a full-sized blender jar.

How It Differs from a Countertop Blender

The difference is simple but changes how you cook. A countertop blender has a jar that sits on a motorized base; you fill the jar, lock on the lid, and blend. An immersion blender has no jar at all — just a motor in the handle, a shaft, and rotating blades at the tip. Consumer Reports describes it as a complement to, not a replacement for, a countertop blender. The countertop machine handles large batches of frozen fruit and ice better, while the immersion blender excels at making smooth hot-soup purées and one-minute salad dressings without dirtying another appliance.

How to Use One Correctly (and Safely)

Operating an immersion blender takes about ten seconds to learn, but a few habits keep the results clean and safe. Insert the blade end into the ingredients before pressing the power button — never turn it on outside the liquid, or splatter will hit the ceiling. Keep the blade fully submerged while blending and move it in a slow up-and-down or circular motion until you reach the right consistency. Turn the motor off before lifting the shaft out of the container. For models with removable shafts, attach the blending arm securely to the motor body first. Use a tall, narrow container when possible, since it reduces splatter better than a wide pot. If your model is cordless, charge it beforehand; if it is plug-in, make sure the cord is clear of the stovetop burner.

Common Design Choices and Attachments

Immersion blenders come in a few basic configurations. Corded models deliver consistent power without battery anxiety and cost less; cordless models offer freedom of movement, which some people prefer when blending in a tall stockpot. Variable speeds give you control over how aggressively the blades cut — useful for delicate emulsions versus thick vegetable purées. Some packages add a whisk attachment for whipping cream or egg whites and a small chopper bowl for onions or nuts. Not every model includes these extras, so the shaft design and attachment compatibility depend on the specific model you choose. Our tested roundup of the best immersion blenders on the market breaks down which models include useful attachments and how they perform with real kitchen tasks.

Good Housekeeping adds one more tip that saves cleanup time: because the blade never sits in a separate jar, rinsing the shaft under running water for a few seconds usually does the job. A brief immediate rinse beats scrubbing dried-on food later.