This is normal! The unit could be emitting an odour for a variety of reasons.
The carbon filtration systems in each FoodCycler® are required to ensure a near-odourless cycle. The filters last approximately 500 cycle hours, or 3-4 months with regular use.
Even if the ‘Replace Filter’ light has not gone on yet, you may need to switch out your carbon pellets. Similarly, you can continue cycling even if the filter light has gone on and no odours are apparent.
Filter life is determined by the moisture quantity in the food waste, and the the intensity of odours of each cycle. If you are cycling rotten, smelly or potent food wastes (such as rotten meat, fish or old cheese) your filters may not last as long as if you were cycling simple veggie scraps and coffee grounds.
Tip: Running a cycle of mostly citrus peels will not only help keep your Bucket clean, it also eliminates any trapped odours in the unit's ventilation system.