What is the best way to preserve spaghetti sauce? I usually freeze
it but I am taking some on a two day road trip to visit my daughter.
What is the best way to keep it from spoiling in transit?
It will last 3, maximum 4 days, if you keep it in contact with ice. Pre-freezing might help bridge the 3rd day to the 4th day. My comments come from my long experience camping in remote regions. Your 4th dinner will always feature meat that is preserved in some way (canned, dried, etc.).