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That depends on many conditions. Assuming a constant room temperature of 70 degrees F (just for example purpose)
The humidity level can make a big difference. The higher the humidity, the easier it is for most microbes to spread and multiply.
Cleanliness of the surface the sandwich is on makes a huge difference. If the surface is sterilized, few microbes will be on the surface to transfer to the sandwich. while if the surface has been wiped with a dry cloth it'll make almost no difference from not being cleaned at all.
There are too many variables to give a full list, but in general, if the sandwich has warmed/cooled to room temperature, microbes have begun to multiply, and it won't take long for it to be dangerous to eat.
Wiki User
∙ 12y ago
Wiki User
∙ 15y agoYou should keep foods out of the danger zone to prevent bacteria from forming on foods. Bacteria can form on foods in the danger zone after just an hour. The danger zone is under 145 degrees and over 45 degrees.
Wiki User
∙ 15y agoPotentially hazardous food should not be left unrefrigerated for more than 2 hours. Less time is better.
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How long can sperm stay fertile in room temp?
Sperm can remain fertile outside the body for up to about 1 hour at room temperature, but this can vary depending on factors such as humidity and exposure to light. It is best to keep sperm samples at body temperature (around 98.6°F or 37°C) if they need to be preserved for longer periods.
How long can a turkey stay out of the freezer?
Raw meat can get bacteria in it after one hour at room temp.
How long after you open BBQ sauce can it stay out of refrigerator?
Two to three days at room temp is fine
Is mercury solid at room temp?
When Mercury is at any temp. Over -47 it will stay a liquid
How does the water boil In a bong?
It doesn't. It is there to cool the smoke so it has to stay at room temp.
What temp is steel at room temp?
room temp
What temp is titanium at room temp?
It is simply room temp. An example of room temp is usually 68° to 75°
How long does kiwi last in room temp?
About one to two weeks.
How long to let a turkey stand at room temperature before injecting?
You do not want your turkey at room temp
Does chicken parts need to be at room temp before baking?
No. However, if they are removed from the refrigerator and are cold they will need to cook longer to reach the proper temperature for doneness (170F). Allowing meat, fish and poultry to reach room temp is okay as long as the food is not held at that temp (about 80F) for long. Reason is bacteria love raw meats at room temp and multiply like crazy if left warm too long.
What state is phosphorus in room temp?
solid at room temp
Is Mochi okay being served at room teperature and what if i make it the day before?
It's OK as long as you don't keep it at room temp. for a very long time. You could keep it refrigerated if you would like but not at room temp. for more than 2 hours.
