Yes, it will wilt without keeping cool.
It is the same with cereal with milk because when u poor the dressins the lettuce gets wet and soak
Crab Louie
Lettuce is biotic. It is a plant so there for is alive. Or at least has been alive
Warm temperatures allow certain bacteria to multiply very fast. It depends what kind of bacteria are on the iceberg lettuce as to whether or not it would be dangerous. If the lettuce has been contaminated with pathogens, it could be dangerous whether or not it has been refrigerated.
Lettuce, spinach, and I believe green onions were risky for awhile. The majority of outbreaks however have been in salad greens (aka lettuce, spinach etc)
Yes, it is safe to eat salad dressing that was from the super market shelf without refrigerating it first. These bottles are packaged so that they are shelf stable up until their "use by" or "best before" date as long as they remain unopened. Once they have been opened, they should be stored in the refrigerator because that seal has been broken and now microbes and mold can start to grow. However, if you purchase salad dressing from a refrigerated (cold) case in the super market, you must store put that in your refrigerator immediately. These are not shelf stable.
No Crohns is not something you can just "catch". While they are not sure what causes Crohns disease, I am positive unwashed lettuce has been ruled out. You are safe, next time, at least rinse your lettuce because not only is sand a crunch you really don't want from your lettuce, E-coli is a digestive ailment you can get from unwashed produce.
Yes, quiche should be refrigerated after it has been cooked to prevent the growth of harmful bacteria.
Yes, frosting should be refrigerated after it has been made to maintain its freshness and prevent spoilage.
Yes, quiche should be refrigerated after it has been cooked to prevent the growth of harmful bacteria.
Lettuce becomes wilted after being in salty salad dressing for a long time because of osmosis. The water inside the cells of the lettuce leaves and is replaced with the salt in the salad dressing.
Yes, cherry pie should be refrigerated after it has been baked to prevent spoilage and maintain freshness.