Does anybody have data about the stability in years of taq polymerase stored at -20 degree?

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Luis Monteagudo

¡Much longer than expiry date!. The only condition is keeping it really at -20ºC, preventing removing it from the freezer repeatedly.

Michael Marcus Hoffmann

We made the same experience like Luis, if the Taq is in the original buffer and was not subjected to thawing-freezing cycles, it will be stable for years in the freezer.

S Mohsen Asghari

If you did not freeze and thaw the stock solution repeatedly, it will be stable for years.