To keep a sandwich warm, you can wrap it in aluminum foil and place it in an insulated lunch bag or container. Another option is to use a thermos to keep hot ingredients warm until you're ready to eat the sandwich.
Aluminum foil would keep a sandwich warm longer than a foam box. Not sure I would agree with the foregoing: aluminum is a very good conductor of heat and gains (or loses) heat easily. Foam would insullate the sandwich better, minimizing any temperature changes, and therefore would keep it warm (or cold) longer. See the link below for more information
Because all the items in a BLT are not warm items. therefore, they are cold
To reheat a Subway sandwich, you can wrap it in a damp paper towel and microwave it for about 30-60 seconds. This will help retain moisture and prevent the bread from becoming too chewy. Enjoy your warm and delicious sandwich!
A bacon, lettuce, and tomato sandwich is usually served while the bacon and toast are still warm. The mayonnaise, lettuce and tomato are cold.
To effectively reheat a sandwich in the oven, preheat the oven to 350F, wrap the sandwich in aluminum foil to prevent it from drying out, and place it on a baking sheet. Heat the sandwich in the oven for about 10-15 minutes, or until it is heated through. Enjoy your warm and delicious sandwich!
The best bag to keep your sandwich fresh is usually a zip lock bag. This allows the sandwich to stay fresh, and putting a bottle of cold water next to it usually helps as well.
Lettuce, tomatoes, pickles, and other relishes to keep the sandwich from getting soggy.
whales keep warm by their blubber! good question
The fur on their bodies keep them warm.
They don't need to keep warm, they have a double coat so they stay warm.
Open faced sandwiches are always a fun idea for a new kind of sandwich. Turkey, rye, and advacado are all good options for a cold sandwich.
They urinate on their feet to keep warm.