How important is RPM in a blender?
I'm looking at getting a new blender, basically the main things I want to be able to do with it are make curry pastes, ultra smooth restaurant quality purees and soups and grind small amounts of spices (I'm talking 1-2 teaspoons). This leaves me with two choices (possibly three of which I'll get too): the Blentec or the Vitamix. The former goes to 27,000rpm and the latter goes to 37,000. I'm wondering is there much of a difference once you get up to crazy speeds like that.
The other option is a Thermomix, which from my reading only hits speeds of 11,000rpm. Unfortunately, given that many Thermomix owners also sell them, it's pretty hard to get unbiased information online so I'm wondering if a speed drop of nearly two thirds will make a difference to the smoothness of my purees. From demos I've seen it think the Thermomix will do a better job with curry pastes and spice grinding as the blades nearly touch the base of the container unlike the other two units: my thinking being that however high the rpm of the Vitamix/Blentec, if the teaspoon of spices can't come into contact with the blades, it's useless.
I read the What to look for when purchasing a blender? question and found no mention of rpm so maybe it's a parameter that isn't very useful, if so then it would be nice to know that at least.
Best Answer
I've used both a Vitamix 500 (not extensively) and a Thermomix TM31. I didn't know there was a difference in RPM, but I didn't notice too much difference in end-effect when both were turned up to full power. So I think it doesn't make much difference at those speeds anymore.
If you're having trouble milling spices though, it helps to heat them a while in the oven, to get rid of humidity and therefore make them more brittle.
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Quick Answer about "How important is RPM in a blender?"
RPM is an important factor. Although it blends the food more smoothly and much faster if it has a higher RPM, it also uses more power and does not blend harder objects as efficiently/well. Although it is important, it is definitely not the most important factor when choosing a blender.Does RPM matter for blender?
Blender Speed Units (RPM and MPH)MPH is relevant because it depends on the blade length\u2014a longer blade spinning at the same RPM as a shorter blade will mix the contents more vigorously with a higher MPH because the blade tips travel further in each revolution.What is the best rpm for a blender?
Primarily, that relates to speed. Food processors operate at around 1,700 revolutions per minute, while blenders start at around 17,000 rpm and can go even higher than 30,000 rpm.How many speeds do you need on a blender?
At a minimum, the blender will have three speeds to choose. However some models offer as many as 10 speeds.Is 250w enough for a blender?
To determine how many watts you need for a good blender, you will need to know the types of jobs you will be using the blender to do: Handheld immersion blenders are sufficient at 250 watts. Small batch blenders perform well at 300 to 600 watts. Casual use, normal size blenders do well at 500 to 750 watts.How Does Your RAM Affect Rendering Speed - Blender
More answers regarding how important is RPM in a blender?
Answer 2
RPM is an important factor when selecting a blender, but it's not necessarily the most critical. A blender with high RPM will blend faster, but it may not actually be indicative of how well the blender blends. In general, a powerful motor is more critical than one that simply spins fast. The higher the horsepower, the more consistently the blender will be able to run after continuous use. The torque of the blade/motor is also an important factor to consider. Higher torque means that the blade will be less likely to stop or slow upon impact with tough or dense items like banana slices or chunks of pineapple.
So while RPM is definitely important (you obviously don't want a blender that takes forever to blend up your food), it's not the only determining factor. Most professional-grade blenders will have much higher RPM ratings than standard residential blenders, but at the professional price level, horsepower and torque are just as important when making your decision.
Answer 3
I've been researching blenders and realize this is old thread but just adding what I found. It seems operating horsepower(torque) is the main criteria to focus rather than RPM. A bunch of blenders advertise peak horsepower but the blenders don't sustain peak horsepower when they are blending. RPM seems to matter once the ingredients are blended. Cnet had a decent article explaining HP for blenders https://www.cnet.com/how-to/the-truth-about-horsepower-in-blenders-and-food-processors/
Answer 4
RPM is an important factor. Although it blends the food more smoothly and much faster if it has a higher RPM, it also uses more power and does not blend harder objects as efficiently/well. Although it is important, it is definitely not the most important factor when choosing a blender. If you have the power supply, I definitely reccomend having a high RPM blender.
Answer 5
The higher RPM is better. Provided you can control that from the lowest RPM to its Highest. The kind of stuff you want to mix will determine the correct RPM to use.
The torque is also important. This means for a layman point of view the strength of your motor. Example: You are to mix a thick dough, would your motor sustain the mixing at a given RPM? If your RPM slows down, it means your motor cannot sustain the RPM given the thickness of the dough.
Chef has a feeling of the performance of their mixer motors, however I doubt if they can tell at what RPM their mixer runs.
The speed of mixers let us say, 5 speed. The manufacturer should indicate the RPM of speed 1= 450rpm, speed 3, 550 rpm, speed 3= 650 rpm etc..(only an example figures but not the actual so you may understand)
Answer 6
Higher RPM is better for smoothies. If you've ever been to Jamba Juice or some other smoothie shop, that great texture mostly comes from the high RPM of the blender
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