Hello I am trying to use a yeast pitching calculator. But I don’t know how old my white labs yeast pack is. Here a pic of my yeast pack https://imgur.com/gallery/cAqXUGr…
Its kind of weird they dont put a date on the package. The way i do it. From the moment it does leave. Yeastbay. I track my package. And that date i do use as freshness. Viability. And use. Yeaststarter calculator. With this date. Its not 100 proc accurate. But got sort of starting point
A look at their site indicates that this best by date is 6 months after packaging.
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