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Mastermix expiry dates?

qPCR expiry date mastermix TaqMan product shelf life

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2 replies to this topic

#1 AKB



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Posted 30 April 2018 - 06:14 PM

I ordered a TaqMan environmental master mix last month (April 2018) intending to use it over the next 6-8 months for a series of experiments requiring me to quantify pathogen abundance in soil. The Mastermix product that has arrived expires July 2018. I am aware they generally have a shelf life of 1 year but was hoping to have one that would last for longer that 3 month. 

Wondering what peoples experiences are with 'expired' mastermixes? How long after expiry is true expiry and how has out of date products potentially impacted your results?


#2 bob1


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Posted 04 May 2018 - 06:43 AM

3 months is a bit short. Send an email to the technical support or your local sales representative and say that you got a product with a very short shelf-life. If you are nice, they might replace it.

#3 OldCloner



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Posted 23 July 2018 - 10:35 AM

Bob1 gave really good advice. No harm in asking for an additional free batch, though you might still be able to use the older one. A lot of mastermixes last way past their expiration date if they are stored properly and always gently agitated and spun down before you take out an aliquot. I have had success with BioRad iproof polymerase (not for qPCR, granted) 8 years past its expiration date. (No I don't work for BioRad).

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