Do you also have a tub in your kitchen to put your veggie cuttings and peels into as you prepare food? We also throw in coffee ground, which I find can make the bottom of the tub quite nasty over time (we don’t often rinse the tub out).
Here is a practical tip:
Line the bottom of the tub with pieces of torn-up egg trays. This pulped paper absorbs moisture and is a carbon-rich ‘brown’ material. When the tub is full, throw the whole lot into your YOLO Compost Tumbler.