Yes it's all the bottles

Thanks for the advise guys. I don't think it's from the brew bag and I don't have any pets. It defiantly only started after bottling. I have looking more on the internet but without knowing more about what it is it's hard to het meaningful results but suggestions are that it's some protein...

Hi I hope some can help or shed some light on this as I haven't been able to find much when searching on the internet. I have been brewing for just over a year from kits mostly but have started the BIAG method. I have just produced my first beer with this method but im not sure if its...