whitelabs wln1000-1 yeast nutrient

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Larso

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Joined
Apr 30, 2011
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Location
Dublin
Hi,
I have some of this whitelabs yeast nutrient but its a few years old. Should I discard it? Whitelabs say it has a shelf life of 9 months. Whats in it that can degrade? Can adding it have a negative impact on my beer(starter)?

Thanks

L
 

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