What is Considered Head Lettuce? A Comprehensive Guide
                                
                                
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                                    5 min read                                
                            
                                Approximately 95% of iceberg lettuce, a well-known type of head lettuce, is composed of water. So, what is considered head lettuce and what differentiates it from other varieties? The answer lies in the way its leaves grow and cluster, forming a compact, dense ball or elongated bundle rather than loose, individual leaves.