Magnetic Stirrer with 7PCS stir bar Set and stir bar Retriever

Never can tell by reviews and since this is the only one I got I can't compare to others but here is what I knowPOWER SUPPLY - it was kind of hard getting in the first time and I worried since that seemed to be an issue for some people but once I got it in it is fine, no issues.SPEED - yes, you need to turn it to almost half way to get the capsule spinning but once spinning you can turn it down to about a quarter for a slow spin. I played with the speed a lot and there is definitely a sweet spot, too fast and the capsule will fly off but that is because the air sucked down by the vortex causes too much turbulence. The more liquid you have and the thicker it is you can spin it pretty fast but most things having it set to 1/2 is plenty fast.THE SPINNER CAPSULES - I got the set of 7, you can get by with the one size for most things, the big one is for slower spinning I think and the smallest one is super tiny, smaller than a TicTak and I don't even know why there is a plastic tweezer but the retrieval rod works nicely. The tiny capsule works great for a very small beaker and that one you can go full speed.STRENGTH - while I have not done anything super viscous, I have tried out several different liquids using multiple amounts of the liquid and trying out several sized beakers and basically I found a size capsule in the set that worked for what ever I tried mixing and the fact that you need to turn it up half way to get it going is NOT an issue because you just need to do that to get the thing going and then you can turn it down to a slower speed.I got this for home kitchen stuff, nothing really scientific, mostly for things that require a lot of stirring to dissolve different things. To really test it I put two cups of sugar in a gallon of cold water and while I had to stir the water some just to get the capsule moving, once it was going it ran fine and if you know anything about sugar, in cold water is dissolves very slowly and not having to pay attention to it, it seemed to be dissolved in no time.It's definitely worth it to get the multi capsule set and you just have to play around with it to get a feel for how it works - IT WORKS WELL for what it does.I let it run a full day at about 1/3 speed and had no issues, didn't warm up or quite working,CONTAINERS - a flat bottom with thin glass is best but I have tried it our with gallon jars that do NOT have a flat bottom, and mason jars and some glasses that are kind of thick on the bottom and this work with everything after I found the sweet spot. Any reviews saying that there is an issue with speed or magnet strength or problems with how fast it goes are in my opinion purely user error, this device works great and for 30 bucks it far exceeded my expectations.

I use it to mix nutrients for my fertility program. I mix containers from a few ounces to a one gallon pitcher. I have had a hard time mixing molasses before I got this stirrer. It is perfect for the molasses which is thick.I will also use it to mix dry water soluble fertilizes.

Works great!

The media could not be loaded. This is a good set for the price. It is $29 includes several stir bars and a removal wand. Came packaged nicely.I tried it with different jars and different thicknesses of fluid. Went well with all types. I even used it on Ball canning jars that aren't totally flat and are thicker on the bottom and it went well. But the thicker the liquid, and thicker the jar, the less likely you are to get it to go slow. If that is not a problem, then this is an excellent choice as it has LOTs of power! I purchased another one first thinkingnit was defective, but second one is identical so it's just the way it is.Remember you have to turn it up half-way in order to initiate stirring action, which is NOT a big deal really. Just turn it half way then tweak it to where you need it to be. Just not too slow or it will stop.Pros:All inclusive set w/ stir barsAffordable and fair priceGood qualityVery fastPowerfulCons:Can't get a nice, slow stir from it. Slowest it would go is medium speed. Only matters with delicate materials.If power is more important to you, go for it! It has lots of power and seems well made. The surface area is stainless steel and waterproof. Has a button that lights up when unit is on. It is rechargeable battery operated or DC. Which is nice that it has both.Good luck and I hope this review helps you to make a decision. Check 'yes' if it helps you. :)

Works perfectly for mixing a powder in water that was very difficult to mix by hand.

I have 4 different magnetic stirrers, and this is the strongest one. Definitely recommend it, especially for the price! I have 2 models that I spent about $200 on each, and they are **garbage** compared to this, the only reason I'm keeping them is because they have temperature control.

good product

I've had one of these for a few years, and recently discovered the fact that water has 4 phases - ice, steam, liquid, and recently discovered (within the last 10 years) liquid crystal water. It's liquid but the molecules move coherently, like a school of fish does.One way to make structured water is to put it in a vortex - tornado-looking situation - in a container for 7 minutes or so. If it's in the sunlight even better.On Amazon there are a few structured water devices - mostly very expensive - but this stirrer does it for $30 ($40 if you get the stirrer bar combo). Put a quart Mason jar full of filtered water on it, center the stirring bar in the center of the jar and have at it.I've been drinking structured water for a few days and so far it's increased my hydration and I feel better in a general way. Not sure if it's as beneficial as some say but I'll keep at it and hope for the best.Worth the money to experiment for sure.