According to standards like those from US Foods , high-quality lettuce must meet these criteria: : Not soft, burst, or decaying.

: Leaves should be crisp and "turgid" (firm), not wilted or limp. Check the core or "butt"—while a little brown oxidation on the very end is normal, it should not be mushy or foul-smelling.

: Soft, velvety leaves with a mild, sweet, and buttery taste. Ideal for delicate salads and as "cups" for lettuce wraps or low-carb taco shells.

: For head lettuces like Romaine or Iceberg, give the head a firm squeeze. It should feel solid and heavy for its size. Avoid heads where the bottom core gives way easily.

: Seek vibrant, consistent colors (rich greens or deep reds). Avoid leaves that are yellowing, browning, or have translucent "slimy" spots, which indicate spoilage.

: Whole heads sold loose are the most sustainable option, especially when brought home in reusable mesh or cotton bags. If choosing between pre-packaged options, clear plastic boxes (PET #1) are generally easier to recycle than multi-layer plastic bags. 4. Summary of Common Lettuce Grades

: Tender leaves branching from a single stalk rather than forming a tight head. These add vibrant color and an earthy, refreshing taste to mixed green salads. 2. Selection Guide: What to Look For

To ensure you buy the freshest produce, look for these quality indicators: