Since kitchen sponges are a breeding ground for bacteria, some microbiologists say you should replace them once a week.
Despite being a cleaning tool, your kitchen sponge could be one of the dirtiest items in your home.
A study published in 2017 in the journal Scientific Reports found that sponges can host a lot of bacteria, including pathogens, which can cause certain illnesses.
The researchers also determined that prolonging the life of cleaning sponges by boiling or microwaving them is somewhat effective, but it won’t exactly make them sterile.
For a healthier, cleaner kitchen, it’s best to replace sponges every week, the team reported.
