Yeast and MLB shipping

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AbruzziRed

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I search this forum quite a bit and couldn’t find what I was looking for so I am starting a thread in case others have the same questions.

I ordered some Premier Cuvée yeast and VP41 MLB with the ice pack. It was supposed to arrive in one day. Two days later I got it and of course it’s hot here. when opening the whole box was warm and the ice melted.

So…. Does MLB and yeast go bad when it’s warm for a few days but sealed?

I can’t find a an answer so I would like to hear your thoughts.
 
Assuming the ice pack was actually frozen at shipment then you're talking about what 24 hours or so in a warm/hot state? If it's dry yeast I think it will be fine, one day or so won't have much affect on it. I know of instances where people received liquid yeast warm and bloated and it was still viable and dry yeast is much much more resilant than liquid yeast.
I don't know about the MLB but again one day is not that long unless it is very fragile.
 
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