Beer Bottles

[joe.s-b]

My brother-in-law who runs a small pub in North Norway visited us early this month. He brews a very good IPA so I bought a few bottles for him to taste. I don't normally buy bottles of beer but we were very surprised to find one brewers bottle appeared to have a vertical join and was folded from the bottom up. I asked the brewers concerned about this and also passed complements on the brew but have had no response. Any one know enough about glassmaking to comment please?

[boxtops]

Can you explain please, what do you mean by "folded from the bottom up"? Which brewer (so we can google and see an example)?

[joe.s-b]

The bottle seemed to have a vertical seam up both sides from the base. The brewers were Greene King

[boxtops]

Aha, the makers of Old Speckled Hen, the favourite in this house!

[Fitzer]

Pretty well all beer bottles have that if you look, the molten glass is dropped/blown into a mould in two halves, where the mould meets is the line, if I remember my Playschool trips through the round window :-)

[boxtops]

I agree with fitzer - they're made in two halves, not blown as a single bottle

[joe.s-b]

Thank you for your answers; they make mechanical sense. I have looked at other bottles including wine bottles and on close examination they do have a very faint seam. The Greene King bottles must have been made with a worn mould as the joint was very obvious however they didn't leak.

[Old_Geezer]

Had they leaked they would have been removed from the shelf before you got to them ;-)