what is a pyros bottle, have seen it when referring to coke and pepsi bottles?

[randiellison]

what is a pyros bottle, have seen it when referring to coke and pepsi bottles?
Thanks in advance for info[]

 

[bubbas dad]

a pryo lable is about the same as an acl lable. acl being applied color lable. i believe pryo stands for pryoglazed, meaning that the painted lable is cooked on.

 

[capsoda]

Yeap, John is correct. Pyroglazed labels are backed on enamel and are the most durable of the ACLs.