Our personal Blender performance TestFrozen Fruit Smoothie


If you've ever made smoothies with a blender, then you may understand how practical this test is to your buying decision. Since the primary purpose of a personal blender is to make smoothies, how it lives up to that capability will determine its ultimate value. If it’s good, it should be strong, work consistently, and capable of handling frozen ingredients.

Why The Test Matters

Our smoothie is made with milk, honey, yogurt, and four types of frozen fruits (blueberries, blackberries, strawberries, and mango). Using such ingredients is a good way to check for efficiency as although most personal blenders are powerful enough to blend through frozen fruits, some may be more efficient in processing seeds or fibers. 

In particular, the results of this test will give us an idea of how well each blender handles seedy ingredients, how long it takes to blend a serving frozen smoothie, and how functional it is compared to others. As we learned from our research, there are several personal blenders perfectly capable of preparing icy fruity drinks, but they may come with compromises that make them less desirable. As such, this test also went a long way toward showing us the pros and cons of each product.

Frozen Fruit Smoothie Test

Testing Recipe: 1 Serving 

  • 1.5 oz blueberries 
  • 1 oz blackberries 
  • 0.5 oz strawberries 
  • 1.5 oz mango chunks 
  • 0.75 tbsp honey
  • 0.08 cup plain Greek yogurt
  • 0.25 cup whole milk

This recipe is designed by a chef at Healthy Recipes 101. You can see for yourself here.

Testing Procedure

We start the test by placing all the frozen fruits into the blending cup with honey, yogurt, and milk, then letting each machine blend at its highest speed setting. During the operation, we will stop and remove the blender’s cup from its motor base to give it a good shake every 20 blending seconds. Since hard ingredients like frozen fruits can get stuck in the blade and prevent it from turning, that way means to ensure even blends and more accuracy blending time. Note that the shaking time is not included in the total blending time score. 

We allow each blender two minutes worth of runtime (blending longer than that duration will make the frozen smoothies come out too thin), so the test ends either when the smoothie reaches the best consistencyor when we hit that time limit. 

To ensure accurate ratings and ultimate equity among blenders, determining an appropriate point of the best consistency in that span of runtime is very important. That’s whywe will stop each machine temporarily after every 5-10 second intervals blending (depending on remaining residual amounts) and use a spoon passing it back and forth to check for the texture. Note that the checking process is only carried out once we notice all the ingredients are almost incorporated instead of from start to finish of the test. 

We don’t have an official benchmark for the specific blending time since it is unlikely to help us make practical recommendations. It is apparent that the blender’s completion time isn’t proportional to its final outcomes. Simply put, a slower machine isn’t equivalent to a less desirable result. 

As such, it doesn’t make sense if we claim a blender unworthy of your consideration just because it cannot yield a serving of smoothie in the amount of time we specify.

As an actual user, we want to determine the best possible result that a blender can churn out rather than what is left out in a scheduled process. 

Scoring Scale

Making up 30% of the performance rating, the smoothie score of each blender is gradedon a scale out of 10 centered on its blending time.In other words, we calculate the blender’s overall score by measuring how long it takes to churn out a serving of smoothie and then give it a score accordingly. Any blender that couldn’t liquify all the fruits within 2 minutes would fail the test and be awarded no point. 

We don’t derive from the blended result to grade our blenders because we aim to end up with a smooth consistency yet find it very difficult to distinguish the differences between blenders’ smoothies based on that texture-benchmark.

Here are just a few examples proving how the results between blenders are similar: 

The Ninja Fit 10 points
The Ninja Fit churned out a creamy consistency in only one minutes so it got 10 points
The KOIOS get 8 points
This impressive completion time helped the KOIOS get 8 points.
The Black + Decker 6 points
We spent one minute and forty seconds to blend a serving smoothie with the Black + Decker. This operating duration was graded 6 points.
The Magic Bullet no point
Following the 2- minute benchmark, the Magic Bullet still left behind strawberry chunks so we awarded it no point.

Scoring Breakdown

  • ≤ 1 minute:  People love frozen fruit smoothies for their thick, ice cream- like texture. As such, a good blender should work well enough to provide that desired outcome. It has to blend and incorporate all the ingredients as fast as possible, otherwise, frozen fruits will thaw over time, diluting the smoothie’ s consistency. Our initial tests indicate that 1-minute is an appropriate amount of blending time for the fruits to preserve their frozen state, thus boosting the smoothie’s thickness.
  • ≤ 1 min 10 secs: 9 points 
  • ≤ 1 min 20 secs: 8 points 
  • ≤ 1 min 30 secs: 7 points 
  • ≤ 1 min 40 secs: 6 points 
  • ≤ 1 min 50 secs: 5 points 
  • ≤ 2 minutes: 4 points