Lettuce also needs airflow which is why it often spoils quickly as too much moisture can build up in its plastic packaging but the dry environment of the fridge can often cause it to wilt.

The first study in NanoImpact found that lettuce exposed to both nanoscale plastic particles and common environmental pollutants such as arsenic took up substantially more of the toxic substances ...

These come in plastic containers, so be sure to check the best-by date. Keep this type of butter lettuce in its clamshell packaging and add a little water to the container to feed the roots.