SHOULD I REMOVE THE CORE BEFORE SHREDDING LETTUCE?
Coring lettuce before shredding helps the process run more smoothly and prevents bits of core from mixing with lettuce leaves. You can core iceberg lettuce by knocking the lettuce head, core side down, against a hard, flat surface. This should detach the leaves from the core and allow you to pull the core out. For varieties like romaine lettuce, simply twist the core off by hand or chop it off with a knife.