I have the base with some vegetables that last two weeks like tofu cabbage carrots and onion celery like mirepoix and in separate containers the stuff that deteriorate if in stock like broccoli/mushrooms/spinach/other greens/veggies and add in the separated stuff to the base in a smaller pot along with ginger/garlic/sesame oil. This way I can buy and cook several things in bulk and use them as needed over a week or so, adding them to the base.