It is important to clean the bottle warmer regularly to maintain hygiene. To do so, first unplug it and let it cool down. Then, wipe the surfaces with a damp cloth. Make sure not to submerge the unit in water or use abrasive cleaners. For disinfection, you can use a mixture of equal parts water and white vinegar. Gently wipe down the surfaces with this solution, ensuring it does not come into contact with the heating plate. Finally, rinse with clean water and dry thoroughly before use.