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How to choose a blender for smoothies

There isn’t one best blender for smoothies. There’s a best blender for the way you make them: how many people you’re blending for, whether you use frozen fruit or ice, and how much space you have. This guide doesn’t rank products and we haven’t lab-tested any. Instead it sets out what to compare and where the manufacturers’ own manuals answer the questions that reviews often skip. It’s part of our blender buying guides.

Quick answer: four questions to ask first

  1. How many people are you blending for? One drink at a time suits a personal (bullet) blender that blends in the cup you drink from. Batches for a household suit a full-size jug.
  2. Will you blend frozen fruit or ice? Check what the manual allows before you buy. Some makers say plainly that their machine isn’t meant for crushing ice on its own.
  3. Do you want thick blends such as smoothie bowls? If so, look for a jug that comes with a tamper, or accept that you’ll be stopping to scrape down.
  4. Where will it live? A blender that has to come out of a cupboard tends to get used less. Measure the space under your wall cupboards before you choose a tall jug.

The main types of blender for smoothies

  • Personal or bullet blenders blend in a sealed cup that you screw a blade unit onto. They suit single servings and grab-and-go drinks.
  • Full-size jug blenders have a jug with a lid and a blade at the base. They suit batches, thicker blends and, on some models, hot soups.
  • Portable or cordless blenders are small, battery-powered cups you charge, usually by USB. They’re for convenience away from the kitchen.

We compare the three in detail in personal vs full-size vs portable blenders.

What to compare on the box

We’ve deliberately left out wattages, capacities and prices. They vary by model and change often, and the useful comparison is between the features below. Check the figures on the manufacturer’s own page for the exact model you’re looking at.

Capacity and the MAX fill line

The size printed on the box isn’t how much smoothie you can make. Jugs and cups are marked with MAX lines, and the usable amount is below them. NutriBullet’s full-size blender pitcher, for example, has two MAX lines, a higher one for solid ingredients and a lower one for liquids, and its cups have their own MAX line. NutriBullet warns that going over them can cause leaks and dangerous pressurisation (NutriBullet Blender user guide). Vitamix advises filling no more than three-quarters full for cold ingredients and no more than half for hot ones (Vitamix Europe tips). So if you regularly make drinks for three or four people, look at the marked usable volume, not the headline size.

There’s a minimum too. Vitamix explains that below a certain amount no vortex forms, and suggests its narrower container for people who mostly blend small quantities (Vitamix Europe tips). A huge jug isn’t automatically better if you blend one glass at a time.

Blades and whether they come out for cleaning

Some jugs have the blade fixed in the base and others have a removable blade unit. Fixed blades mean fewer seals to wash. Removable ones are easier to get right into but are sharp to handle. Personal blenders always have a separate blade unit that screws onto the cup. Blade design matters as much as motor size: Vitamix, for instance, uses differently designed blades in its standard and dry-grains containers because one pulls food down and the other pushes it up and away (Vitamix UK FAQ).

Controls: pulse, programmes and variable speed

A pulse button helps with thick mixtures because short bursts let ingredients settle back onto the blades. Preset programmes run timed patterns of pulses and pauses, which is useful if you don’t want to judge timing yourself. Variable speed gives you more control. Vitamix recommends starting on the lowest speed and turning up quickly so a vortex can form before ingredients are thrown against the walls (Vitamix Europe tips).

A tamper, if you like thick blends

A tamper is a stick that goes through the lid to push ingredients towards the blades while the machine runs. Vitamix says it’s for very thick or frozen mixtures and that it stops air pockets forming. It should only ever be used through the lid plug with the lid in place (Vitamix UK FAQ). NutriBullet also supplies a tamper with its full-size blender and says not to use anything else to push ingredients down (NutriBullet Blender user guide). If you want smoothie bowls, a tamper makes a real difference. See how to make a smoothie bowl.

Dishwasher-safe parts

Only treat parts as dishwasher-safe if the manual says so for that model. Even Vitamix’s FAQ points owners to the owner’s manual for cleaning rather than giving a blanket answer (Vitamix UK FAQ).

Noise

Most manufacturers don’t publish a decibel figure, so we won’t invent one. Every powerful blender is loud for the short time it runs. If noise matters to you, read the retailer’s product questions, try one in a shop if you can, and remember that a blender that blends properly in 30 seconds may be less annoying than a quieter one that needs two minutes of stopping and starting.

Frozen fruit and ice: check the manual before you buy

This is where models differ most, so check the manual, not the marketing photo. NutriBullet states that its blenders aren’t intended to be used as an ice crusher or without liquid (NutriBullet 600/900 user guide). Ninja’s single-serve cup guide tells you to add ice or frozen ingredients last, cut ingredients into chunks and not go past the max fill line (Ninja BN495UK inspiration guide). Vitamix says its machines crush ice and frozen ingredients quickly, before friction heat melts the mixture (Vitamix UK FAQ). If you mostly blend frozen fruit, our frozen fruit smoothie guide covers technique for each blender type.

Safety features worth checking

  • Sealed cups and heat. NutriBullet warns never to blend hot or carbonated ingredients in any sealed NutriBullet cup, because pressure can build up. It also says not to run the blender longer than necessary, generally under a minute, because friction heats the contents (NutriBullet 600/900 user guide). If you want to blend soups, you need a jug designed for it.
  • Vented lids. Jugs that can take hot liquids have a lid with a vent or removable cap so steam can escape. NutriBullet says never to blend hot liquids in its pitcher without the lid and vented cap fitted (NutriBullet Blender user guide).
  • Overheat protection. Many motors switch off if they get too hot. Vitamix describes its automatic overload protection and how long it can take to reset (Vitamix UK FAQ). That’s normal behaviour, not a fault, but it’s worth knowing before a blender stops mid-blend.
  • Interlocks. Many blenders won’t start unless the jug or cup is seated properly. Check the manual to see how yours works.

Buying safely in the UK

  • Buy from a reputable retailer you can return a faulty item to.
  • Register the blender with the manufacturer. Vitamix, for example, says registering lets it contact you with product notifications (Vitamix UK FAQ).
  • Check GOV.UK product safety alerts, reports and recalls for the model you’re considering, and again occasionally after you’ve bought it.
  • Keep the manual. Most of the answers in this guide came from one.

Which type suits you?

  • One person, a smoothie most mornings: a personal blender is quick and you drink from the cup. Accept that it isn’t for hot food.
  • A household, or batches for the fridge: a full-size jug. Check the usable volume below the MAX line.
  • Thick smoothie bowls and frozen desserts: a jug with a tamper, or plenty of patience with a pulse button.
  • Blending at work, the gym or while travelling: a portable cordless blender, with realistic expectations about cup size and frozen fruit.

Once you’ve got your blender, our blender load order and ratio guide explains how to fill it for smoother results.

FAQ

What wattage do I need for smoothies?

There’s no universal figure, and the manufacturers we checked don’t give one. Their own guidance focuses on loading order, enough liquid, fill lines and technique (Vitamix Europe tips). Wattage is one input, but blade design and jug shape also decide whether ingredients circulate. Compare like-for-like models on the manufacturer’s page rather than chasing the biggest number.

Can a personal blender crush ice?

It depends on the model, so read that model’s manual. NutriBullet says its blenders aren’t intended to be used as an ice crusher or without liquid (NutriBullet 600/900 user guide). Ninja’s single-serve cup guide includes ice in drinks, added last and below the max line (Ninja BN495UK inspiration guide).

Is a blender or a juicer better for smoothies?

They do different jobs. A blender purées the whole fruit, skin and pulp included where you leave them on, which is what gives a smoothie its body. A juicer separates the juice from the pulp. For smoothies, you want a blender.

Can I blend hot soup in my smoothie blender?

Only in a jug with a vented lid, and only if the manual says the jug can take hot liquids. Never in a sealed personal cup. NutriBullet warns against hot ingredients in any sealed cup (NutriBullet 600/900 user guide), and Vitamix says its 20-ounce container can’t be used to blend hot recipes because it has no vent to release steam (Vitamix UK FAQ).

Sources