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Old 06-19-2014, 09:39 AM   #1
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Default Yeast Cell Density Meter

Do you want a tool that can measure the amount of yeast in your starter or wort, and is easy to use?

A product development team that I'm excited to be part of has started design of a beer color and cell density meter.

What would you expect in such a device? How about easier to use than a refractometer? More accuracy than a microscope and hemocytometer? Perhaps 5%, 1% or better accuracy? What if we added some other functions? How about being able to measure beer color using standards such as SRM and EBC? Or some of the less standard methods such as three color equivalent RGB? Lab equipment with this capability can be over $1000 and doesn't have all these features.

Would you pay $100 or $200 for a device that measures cell density more accurately than a microscope and hemocytomter, and color to SRM and EBC standards?

Our team is composed of engineers and scientists with over 40 years of combined in field professional experience. We are looking forward to building a product designed for you, the brewer, but we need your feedback.

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Old 06-19-2014, 06:31 PM   #2
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I think this would be a useful tool to have. I couldn't care less about measuring color but cell density would be nice. I think having an accuracy to within 5% would be sufficient and I probably wouldn't pay more than $100 for such a tool. There are plenty of estimation calculators out there that get close enough and they are free.

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Old 06-19-2014, 06:37 PM   #3
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I would pay 100 bucks for it. Professional brewers might pay 200.

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Old 06-19-2014, 06:54 PM   #4
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To measure cell density and color, yeah, I'd definitely be willing to pay $100. Not sure I'd be interested at $200. I suppose I'd be willing to pay an extra $20 for a meter that measures both cell density and color vs. one that only measures cell density.

Good luck with the project. It sounds exciting.

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Old 06-19-2014, 07:14 PM   #5
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I think that could become a key tool for monitoring pitching rates and sounds much more approachable (and faster) than a microscope and hemocytometer. I would focus on that vs the SRM measuring or maybe offer SRM as an upgrade. I would probably pay between $100 and $200 depending on its accuracy vs the micro/hemo counting. Good luck!

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Old 06-19-2014, 07:31 PM   #6
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I'd be much more interested in cell viability counts than color.

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Old 06-19-2014, 07:32 PM   #7
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Thanks for the feedback so far! I'm confident that we can make a product that fits the expectations that you guys have laid out here. Based on our calculations it looks like the devices will be faster and more accurate than a microscope. Accuracy of better than 5% should be achievable.

With existing cell density meters the result needs to be scaled for the volume of the starter. Would it be valuable to have that built into this meter by selecting the volume of your starter? The actual number of cells could be displayed instead of just a density.

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Old 06-19-2014, 07:37 PM   #8
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Quote:
Originally Posted by WoodlandBrew View Post
Thanks for the feedback so far! I'm confident that we can make a product that fits the expectations that you guys have laid out here. Based on our calculations it looks like the devices will be faster and more accurate than a microscope. Accuracy of better than 5% should be achievable.

With existing cell density meters the result needs to be scaled for the volume of the starter. Would it be valuable to have that built into this meter by selecting the volume of your starter? The actual number of cells could be displayed instead of just a density.
Probably it would it be convenient, but remember, the people interested in this are already doing a lot of math. A mere X cells per ml type of scale could easily be enough for what most of us will want.

I guess what I'm saying is, yes, that would be blingy, but I wouldn't want to pay more for the product because it has it.
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Old 06-19-2014, 09:18 PM   #9
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Quote:
Originally Posted by jbaysurfer View Post
probably it would it be convenient, but remember, the people interested in this are already doing a lot of math. A mere x cells per ml type of scale could easily be enough for what most of us will want.

I guess what i'm saying is, yes, that would be blingy, but i wouldn't want to pay more for the product because it has it.
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Old 06-19-2014, 09:34 PM   #10
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Yes, and seeing as how I paid over 100 for my ph meter and dissolved o2 meter I would have no problem paying 100 or maybe a bit more.

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