Is anyone using Faststart PCR master from Roche for genotyping?. How do you store it if it is more than a month?. Can we store in -20 and thaw again?

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Laurence Stuart Dawkins-Hall

Yes you should store at -20C
Perfectly Ok to freeze thaw from -20C multiple times
Problem with denaturation and freeze thawing are usually linked to proteins so for a PCR mix consisting of small molecules like salts this is completely normal: so your mix should be stable for at least 1 year with multiple rounds of freeze thawing

Smitha a S

Hi Laurence,

Thank you for your reply. I was storing it at 4 degree as suggested in the protocol that we can use it for a month storing at 4 degree. Will it be a problem?. Now its been a month so i have kept in -20.