Re:How cold does it have to get........
i will work my cart normally until the temp dips below 15.
at that point things like my salsas, cilantro, and onions begin to freeze on the cart. What i have just started doing is pre-making burritos (limits my menu greatly) which i can keep warm on my steam table and sell them.
i learned a trick from good eats, using bricks left in the oven at about 400 degrees, wrapped in foil, then wrapped with towels, placed in a ice chest will keep things warm for quite some time. This allows me to bring extras
having pre made burritos speeds up my service time greatly and keeps me working. I can't work much below 10 due to frost bite. But as long as it is in the teens i'll be working. People in maine are used to the cold and will stop by my cart while out and about. Especially in the late night hours when they have a few drinks in them.