i use the jars in my formosa
without fridge--the only thing needing fridge is mayo--and best foods/hellmans lasts 1 week without, when in a cool place in boat--i buy the small squeeze jars of mayo. the rest i keep in my galley
without problem. i also use sweet chili sauce--is thai and wonderful!!!
cream cheese is best in winter.
salad dressings i make myself and keep for long time--donot need fridge unless creamy style and i donot use those. vinegar and olive oil
are fine without fridge. sour cream is rotten milk--how much more rotten can it get besides moldy--keeps 3 days max in winter. 1/2 and 1/2 lasts 4 days in winter and 2 days in summer in san diego
...i donot do relish so i have no way to let you know how long it lasts !
ketchup, mustard, soy, worcestershire, bbq and hot sauce live forever---keep in cool dark place--i keep mine behind sink in galley
.....i have lived on board since 1990 and have never had fridge! i find i donot need one--i am a reallly goood cook, also, according to my friends ..... they keep coming over when i cook and havent died yet--neither have i!!!!
i find the packets most inconvenient for making tuna salad or anything but a single