Co2 - food grade

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Manngold
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Co2 - food grade

Post by Manngold » Tue May 29, 2018 7:21 pm

Recently purchased some of the mini kegs that have a mini co2 regulator and they take a threaded co2 bulb. Does Co2 need to be good grade? Are there any risks with using those that aren't?

Thanks

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oz11
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Re: Co2 - food grade

Post by oz11 » Tue May 29, 2018 9:21 pm

I buy in bulk from from these guys. But I use mini kegs extensively.

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oz11
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Re: Co2 - food grade

Post by oz11 » Tue May 29, 2018 9:32 pm

Ah, I see you said threaded bulbs, and the ones on the site I linked to say food grade for the unthreaded bulbs, but don't specify for the threaded one...curious!

McMullan
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Re: Co2 - food grade

Post by McMullan » Tue May 29, 2018 10:37 pm

Yes, for carbonating beverages, it should be 'food grade'. I've brought this issue up one or twice only to hit a wall of opinionated ignorance. Being 'reliably informed' by someone's mate who works in a welder's supplier 'CO2 is CO2'! Of course CO2 is CO2, but it really should be QC'd to demonstrate its suitability for carbonating beverages. Note the historical recalls in industry! I mainly condition naturally, because my CO2 supply isn't QC'd, unlike Sodastream bottles :wink:

reddibaggie
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Re: Co2 - food grade

Post by reddibaggie » Wed May 30, 2018 12:16 pm

I have no idea about the ins and outs of whether it’s ok, but I’ve got a huge torpedo bottle of non food safe co2 I’ve been using for over 3 months now, and I’m not dead yet. I don’t have any odd tastes or anything out of the ordinary in the beer either.


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Secla
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Re: Co2 - food grade

Post by Secla » Wed May 30, 2018 3:33 pm

Isn't it something to do with the cylinder it's in rather than the co2 ? Sure I read that somewhere

sonicated
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Re: Co2 - food grade

Post by sonicated » Wed May 30, 2018 3:46 pm

I believe fire extinguishers have a dip tube which can cause problems with the regulator as liquid CO2 comes out. I still wouldn't use a non-food grade CO2 though - not everything kills you straight away!

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