Have I oxidised my beer samples ?

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Gelding

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Today I was filling up some sample bottles from a keg using a beer gun attached via a liquid out connector to the keg.

I used a low pressure , slow fill around 3 psi.

However after I finished filling the bottles I noticed a puddle of beer underneath the keg and realised that I hadn't tightened the line properly to the liquid out connector and hence there was a small leak.

Does that mean I have sucked in air as I was filling from that leak point ? Or was beer just leaking the other way and not visa versa ?

:unsure: :blink:
 
If the beer keg was under positive pressure (ie above atmospheric) then that explains why beer leaks out. With positive pressure ( air would not leak IN, but beer would leak OUT.

To suck in air you would need a negative pressure in the bottle you are filling.... some kind of suction and not heard of bottles being filled that way ;)

I suspect worst case is you might lose a tad of carbonation as the pressure drops past the leak point.
 
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