Tasty's VS Jamil's bottling method

[MikeSpike]

When racking beer into bottles, should one displace air in headspace above liquid?

For instance, if you are racking beer into PET bottles, why is it advisable to burp and remove air from the headspace above the liquid? Is it to reduce oxygen in the bottle?

Is less air/oxygen in bottle head space generally considered better brewing practice?
What about glass bottles? They cannot be burped (squeezed to remove air from the headspace above liquid). What do brewers do to reduce the amount of air in glass bottles?

If you do burp the air space, is there sufficient dissolved oxygen to support the yeast during carbonation?

Wine connoisseurs sometimes use argon dispensing systems to displace air from the head space on bottles opened for consumption. Do any wineries introduce argon into the headspace when bottling?

[MikeSpike]

If Tasty isnt first purging with CO2, his beer is more prone to oxygen exposure(it doesnt matter if you are going to drink the beer shortly after bottling).

The beer gun is essentially a counter pressure filler. You first purge the bottles with CO2 and then you fill the bottles up.

Both methods work great. For long term storage you woudl probably want to purge the bottles with CO2...

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Check this out - a year ago I started adding co2 to milk. Now I do it all the time. I regularly add CO2 to milk I buy on the day I buy it - not enough to taste the carbonation. I do it to increase the shelf life. I've kept whole milk for up to 90-days w/o spoilage. Sounds strange to most folks. I buy 1-gallon milk containers because of price. But it takes a long time to consume it. I used to have milk going bad all the time, it seemed.

Now I pour it off into 2-liter containers, two of them, carbonating them both. Since I started doing that, I've never had any milk to spoil. Just thought I'd stick this in the middle of the "carbonator wars".

[brewinhard]

I liked the beer gun a lot more than the counter pressure bottle filler but felt like when I removed the filler stem, its volume was being replaced with oxygen. That was probably just bad technique on my part.

Tasty

After pulling out the stem, I will typically give a quick shot of CO2 into the headspace and then cap on foam.

[MikeSpike]

I liked the beer gun a lot more than the counter pressure bottle filler but felt like when I removed the filler stem, its volume was being replaced with oxygen. That was probably just bad technique on my part.

Tasty

After pulling out the stem, I will typically give a quick shot of CO2 into the headspace and then cap on foam.

when you say 'cap on foam', the whole head space is foamed up when you apply the cap, correct.

[brewinhard]

Mostly, but if it is not a quick shot of CO2 will purge that headspace after pulling the stem all the way out of the beer. The foam really depends on how carbonated the beer is for me. For example if I am bottling at say 3.5 vol, than I get way more foam than I typically do with say 2.75 volumes as the bottle is filled. Mostly though, I only beergun for comps, so the beer is consumed/judged within 2 wks or so.

[MikeSpike]

t's just getting in the way.

You sound like that is a joke. I could be a professional brewer by now if it wasn't for P.E.T. (Polyethylene terephthalate)

Yep, the name Blowmax really means something

What is it about PET? Is there a problem with it?

[Blowmax10]

What is it about PET? Is there a problem with it?

No I just work way too much - I very rarely get to listen to the brewing network live any more

I've got some beer in some bottles that I got from work for free and they seem to be fine so far. Funny thing is that they are closer to Gatorade bottles than pepsi bottles

[11amas]

I have seen a brewery's bottling line in a video and they have a counter pressure filler which, right before the capper, has a little squirt of water hit the beer. The water causes some foaming which fills the headspace so they cap perfectly on foam. When I bottle, I get some foaming because I don't chill my bottles beforehand. I just sanitize, fill, some foaming happens and I cap. I have tasted beer a year later and no noticeable oxidization has happened.