Sorry excuse my ignorance, but why do you need them, is it due to low levels of carbonation in the beer, so this is how a head is created during the pour.
Thank you for the welcome gents, I have noticed that this is a very international site, so I missed saying where I'm from, and that would be sydney Australia
Name is Steve, I have been brewing for many a year, however only with kits. I hope that I may with the help of this forum increase my skill and knowledge in this fine art .
Cheers