How cold temps can live bacteria survive?

[Shallow Planet]

I ordered Dr Tims live bacteria and it arrived frozen. This I know is useless and dead now. My question is how cold can it survive in? I need to order replacement, but with temps in the 20s and 30s I am afraid even if its not frozen it might arrive dead. My first ordered we had those harsh days in the negatives so IDK if 20s and 30s should be okay.

 

[Lasse]

Most bacteria - especially nitrifikation bacteria survive very, very low temperatures. Nitrificators are very common in normal soil all over the world. Where I live - during winter time - the soil is frozen down to 0.5 meters . In the spring - they wake up and start to work again. I´m not sure that they are dead. Contact Dr Tims an ask but I rather sure that you will have an answer that i does not matter.

Sincerely Lasse

 

[Larry L]

We could just ask @DrTim directly, I bet he would know. ;-)