Home Brewer Testimonial of VP 706B-3 Mini Stirrus Horizontal/Vortex Magnetic Stirrer
As a home brewer gone wild, I wanted a stir plate to create yeast starters from slants or small vials of yeast.  The stir plate must be able to turn viscous material for long periods of time.  I’ve tried many stir plates in the past, both homemade and those bought from scientific supply companies, some costing in excess of $350, but they never seemed to stand the test of time.  One scientific company was gracious enough to replace their stir plate 3 times but they kept burning out.  There is nothing more frustrating than being in the middle of a grow cycle only to have to run out and buy another stir plate to finish the job. 
It’s my belief that most stir plates are designed to run light weight solutions for fairly short amounts of time.  So growing yeast cultures, which continue to thicken as they grow over several days, was too large a task to ask.  I was about to give up when I met Dr Patrick Cleveland of V&P Scientific.  I told him what I was trying to do and of the large number of stir plates that I had burned out in just 18 months.  He said he had the solution for me and recommended the VP 706B-3.  When he first told me the price, I gasped.   But that night I calculated what I had invested in stir plates already and to my amazement I had spent that and more.  So I decided to give it a try. 
First let me offer a word of caution when using this stir plate.  The magnetic coupling is so strong between the stir bar and the stir plate itself that you need to drop the stir bar into the mixing container before placing it on the stir plate.  If you simply drop it in while on the stir plate, it will couple so strong and quick that it can and did crack my flask.
As all home brewers know, a yeast culture grows and becomes more and more viscous so you usually need to turn up the power to keep the stir plate spinning at the same RPM.  However, with the strength of the VP 706B-3’s motor, I never saw any visible signs of slowing.  I’m sure some occurred, but it was so minimal that I couldn’t notice it by just looking at it. 
I’ve run the VP 706B-3 for up to a week straight without a single issue.  I’m on my 16th starter now and I’ve had absolutely zero issues with this bad boy.  Every time I check on it, it makes me smile as it continues to spin.  It’s a great feeling to know I’ve found a product I can rely on time after time.
One last note:  Dr Cleveland is so customer satisfaction-driven that he has personally called me three times to make sure his product was living up to what he promised.  I can say with 100% honesty that this stir plate is simply amazing and worth every penny and V&P Scientific has been a pleasure to deal with.
Mark S
San Diego, CA

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