This is normal! The unit could be emitting an odor for a variety of reasons.
The carbon filtration systems in each FoodCycler® are required to ensure a near-odorless cycle. They 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 filter carbon. Similarly, you can continue cycling even if the filter light has gone on and no odors are apparent.
Filter life is determined by the moisture quantity in the food waste, and the natural odorousness of each cycle. If you are cycling rotten, smelly or potent food wastes (such as rotting food scraps, 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.