Would a salty gose in a corny cause corrosion problems?

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f00b4r
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Would a salty gose in a corny cause corrosion problems?

Post by f00b4r » Tue Jul 05, 2016 10:20 pm

I have a 10L test batch of a gose that I was going to keg and force carbonate this week until Demig asked if the salt content might cause an issue with the metals in the corny keg. It did make me pause for thought, so I thought I would ask here.
It has 10.5g of salt in 10L of the beer, any idea if this would be an issue?

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Re: Would a salty gose in a corny cause corrosion problems?

Post by demig » Tue Jul 05, 2016 11:07 pm

Funnily enough I was just ideally wondering about this and tempted to go and get an old text book down from the loft. A bit of Googling seems to indicate that pitting can occur with chloride ions at low temperatures such as in a corny especially when oxygen is not present. I suspect the salt concentration is too low and it's probably a possible but not likely scenario.

Anyone got any thoughts on this?

Pinto if you're around you got anything to add?

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Pinto
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Re: Would a salty gose in a corny cause corrosion problems?

Post by Pinto » Tue Jul 05, 2016 11:10 pm

Stainless is well regarded for it's resistance to chloride corrosion - especially the 316 grade most corny's seem to be made of. I'd say fine, myself.
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demig
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Re: Would a salty gose in a corny cause corrosion problems?

Post by demig » Tue Jul 05, 2016 11:12 pm

Thanks pinto :) Quick work

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f00b4r
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Re: Would a salty gose in a corny cause corrosion problems?

Post by f00b4r » Tue Jul 05, 2016 11:26 pm

Pinto wrote:Stainless is well regarded for it's resistance to chloride corrosion - especially the 316 grade most corny's seem to be made of. I'd say fine, myself.
Cheers Pinto.

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Re: Would a salty gose in a corny cause corrosion problems?

Post by Notlaw » Wed Jul 06, 2016 11:18 am

When I worked at Findus in Longbenton, we pumped sauces through 316 that would have had a higher levels of salt than that and never had a problem.

I'd have thought the keg walls would be fine, but I'd be extra vigilant in checking the fittings; they might not all be the same grade.

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Re: Would a salty gose in a corny cause corrosion problems?

Post by f00b4r » Wed Jul 06, 2016 5:53 pm

Fair comment, although the cornys I have are genuine AEB manufactured in the last two years so hopefully they didn't cheapskate on those bits

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