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aeration from Vitamix vs. Blendtec?

theorist Oct 14, 2012 10:55 AM

Has anyone that owns both of these compared the extent to which they aerate food? I just got the Vitamix 750, and while it works great, I find that when I make thick soups and smoothies, the mixtures end up seeming like they have a lot of air in them. Essentially, they appear to be dense, stable foams where the air bubbles are too small to see (like whipped cream, for instance, except with not quite that much air). My Vitamix does appear to aerate more than my Braun MX2050. I'm therefore wondering if this aeration is an unavoidable consequence of high-speed blending (in which case the Blendtec's results would be comparable), or if the Blendtec's different design might aerate food less (the blending action of the Blendtec does appear to be somewhat different from the Vitamix's).

For instance, here's a soup I made last night: ~10 raw Brussel sprouts, ~10 raw frozen baby carrots, ~1 cup water, 1.5 tbsp half-and-half, 5 peppercorns, dash of salt. Blend until well-mixed (ramped up to max, kept it there for ~60 seconds). Granted, the presence of the cream would tend to cause foaming. I suppose I could have left it out and added it at the end at slow speed (maybe I'll try that next time). Likewise my smoothies have a little olive and coconut oil.

  1. j
    johntee Feb 16, 2014 04:14 AM

    the 750 does aerate more but that seems to lessen as a blend is poured out to say small mason jars, which i prefer, for refrigeration and future enjoyment. it certainly does help create the wonderful creamy texture. testing now to see if freshness holds up over time as air will hasten spoilage. the blendtec freshness did well over several days. the new blendtec its replacing did a decent job with less bubbles but even after multiple repeats could not knock a blend down to a fine enough consistency smoothie wise.

    fresh ginger as an ingredient is a great treat and test. the blendtec, even after a few attempts, left a rather coarse long thread-like substance that was not pleasant at all . to be fair the blend was a little thick but even still it should have got it.

    1. kimeats Jul 2, 2013 07:54 AM

      Turn down the level to midrange to get rid of some of the bubbles. This is why I didn't go with any of the Vitamixes that have presets, I'm more of a manual person.

      1. scubadoo97 Jun 29, 2013 08:33 AM

        I own both and find at high speeds they both lead to a foamy finish

        2 Replies
        1. re: scubadoo97
          mikebv Jun 29, 2013 08:38 AM

          What are you blending when that happens?

          Is it mostly liquid to begin with? I guess most of our smoothies are 1 part coconut milk, 2 parts vegetables, 2 parts fruit type of ratio

          1. re: mikebv
            scubadoo97 Jun 29, 2013 08:52 AM

            Gazpacho would be an example. Same with a corn soup

        2. t
          theorist Nov 18, 2012 01:36 PM

          I've since found that I can improve the results with the Vitamix 750 by blending manually instead of with the presets. What I do (similar to what seek6 suggested) is blend for a while a slower speed until the contents are throughly mixed. At this point, the individual ingredients are evenly distributed throughout the mixture, but still a bit chunky. Then I give it just enough time at high speed to smooth out the mixture. I haven't yet experimented systematically with the slow-high-slow that seek6 suggested -- that's next on the list.

          1. o
            Ornate Nov 18, 2012 12:54 PM

            I'm fussing about this too, although I'm not really interested in getting a blendtec insetad. But I'm interested in ways to prevent this from happening. My smoothies now are better blended, which is great, but they have that light-thick texture, which isn't my favourite. I've heard that some smoothie aficionados add a lot more liquid to prevent this... and you can also be careful to blend as little as necessary on high. I'm thinking I'll blend the liquid and dates first separately, because dates always need the most blending (possibly because I care more about them being perfectly evenly distributed, while this is not as big a deal with other stuff).

            1. s
              seek6 Oct 15, 2012 12:47 PM

              My Blendtec has different modes where it usually starts slow and then speeds up, then slows down, then speeds up again. Maybe it's to allow the larger air bubbles to escape before high speed makes the soup more refined? You could experiment with a lower speed in the middle of the ramp up.

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