You may have noticed I left the protein out of our salad in a jar. For maximum fridge life, pack your cooked chicken, diced hard boiled eggs, cheese, etc. in a sidecar. Just add it in when you are ready to eat.
The same goes for tomatoes and avocado. While you can add whole (not diced!) cherry/grape sized tomatoes directly to the jar, it’s not ideal to store them in the fridge. So I like to leave these out as well and add them when I’m ready to chow down.
Without these ingredients, a vegetable/grain-only jar will be fresh for 5ish days in the fridge!