What’s the difference between CT & lug?
A. These are the two primary types of containers and closures currently used in food packaging. Continuous-thread (CT) is the Mason-style closure mechanism where the jar and lid are both threaded in one continuous bead around the entire circumference of the opening; also referred to as “screw-on”. Lug is the closure system where the container has multiple threads and the lid has an equal number of lugs or tabs that grip the corresponding threads; also known as “twist-on”.
