Author Topic: Zinc Sulfate Heptahydrate for brewing (healthy yeast growth)  (Read 719 times)

Shane Phelan

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Zinc Sulfate Heptahydrate for brewing (healthy yeast growth)
« on: February 02, 2014, 11:15:20 AM »
Just wondering if anyone is using zinc sulphate for brewing? I'm investigating it as a possible a (kind of) group buy but the difficulty lies in measuring out the quantities as they are extremely low concentrations.

I was going do what this dude does here and distribute it out, say a 50ml vial [Does 10 batches] of the solution to people. I can get lab grade quantities of this stuff quite easily but its proving a lot more difficult to get food grade versions. I'm thinking that the lab grade stuff is probably fine but I want to be 100% certain before doing it as looking at the MSDS the stuff is actually pretty lethal in high concentrations.
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Ciderhead

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Re: Zinc Sulfate Heptahydrate for brewing (healthy yeast growth)
« Reply #1 on: February 02, 2014, 11:34:34 AM »
Dried yeast comes with it by default tho right?
100g of youngs yeast nutrient is 1.95
I've also used and continue to use servomyces , wln3200, not cheap!!that goes in the boil, expired yeast in the boil also works I understand.





Shane Phelan

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Re: Zinc Sulfate Heptahydrate for brewing (healthy yeast growth)
« Reply #2 on: February 02, 2014, 11:47:07 AM »
Yeah the aim would be to provide an alternative for the servomyces which are indeed pricey!
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Eoin

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Re: Zinc Sulfate Heptahydrate for brewing (healthy yeast growth)
« Reply #3 on: February 02, 2014, 11:57:04 AM »
Expired yeast is good enough.

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Shane Phelan

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Re: Zinc Sulfate Heptahydrate for brewing (healthy yeast growth)
« Reply #4 on: February 02, 2014, 12:02:54 PM »
Hmm, maybe its not worth the hassle so.
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