17 Things You Should Know How Often To Clean According To Science

7:49 pm 16 Apr, 2018


Do you know how often we should clean certain things that we own or use at home or parts of our body? From our hands, face, denim, towels, bed sheets, kitchen sink, coffee pot, fridge, plastic shower curtain, toilet, doorknobs, carpets, dog, phone to keyboard? Indeed, most of us are just not aware how often we should or need to clean them. But we are here today to share you how often we need to clean them, according to science.

1. Hands

We use our hands to eat, shake hands, wipe our derrieres, and give others high-fives. They are with us all the time and so they should be considered as one of the most important parts of our body to take care of. Doctors say frequent hand-cleaning is the best way to avoid getting sick. Yes, we’d all do a little better if we washed our hands more often.


2. Face


Dermatologists said that it is not good to wash our face more than twice a day. It is said that washing our face more than twice a day or scrubbing extra hard affects our skin as some of the organisms in our skin’s microbiome which are essential illness-fighters and fungus-raiders get washed away along with oil and dirt. So it’s important not to wash them all away.


3. Denim

Despite what some denim manufacturers say, jeans need some washing to stay fit and smell-free. According to science, we should wash them every four to six days of wear to stay fresh. It is said that by doing so it will tighten up the fibers that loosen while we wear the pants.


4. Towels

It is true that towels often don’t get fully dry before we use them again, making them a perfect place for moisture-loving bacteria to grow. So according to science, we should wash them once every three uses. The same rule goes for kitchen dish towels too.


5. Sheets

It is said that our beds are wonderful places for life to thrive. Skin cells, lotions, powders, and oils on our skin, as well as little crumbs of food, all contribute to a germy, microbial soup of growing filth that we sleep with every night. So according to science, we should change our sheets once a week to keep the dirt levels in check. It is said that washing them every week is best.


6. Kitchen sink

It is said that kitchen sink is second only to the sponge when it comes to germs. So according to science, we should disinfect the basin once or twice per week, and immediately after we use it to handle raw meat. The NSF, a public health organization, suggests using a disinfecting cleaner or a tablespoon of bleach in a gallon of water to scrub out the sides and bottom of the sink. After scrubbing with the bleach solution, wait five minutes then rinse the sink out with water and let it dry.


7. Fridge

According to science, we should unplug and deep clean our fridge every three to four months, wiping down the shelves and drawers with warm, soapy water. It says that will help keep the fridge humming along dry, cool, and microbe-free, while also preventing frost buildup in the freezer.


8. Coffee pot

The inside of a coffee pot is dark and damp, which makes it a great place for germs to grow. So, it should be cleaned out once a month. To clean a drip coffee maker, the NSF suggests: Add up to four cups of undiluted vinegar to the reservoir, let that sit in there for 30 minutes, then run the vinegar through the coffeemaker. Afterward, run a couple cycles of fresh water through to get rid of any vinegar taste. One can also use vinegar to clean a french press. Whatever device one use, the caffeinate should be cleaned out once a month to keep the coffee taste fresh.


9. Bathroom

It is said that while we’re in the bathroom cleaning the toilet, we should spiff up the rest of the bathroom, too. Microbiologists suggest it’s best to scrub the sink, empty the drains, and clean the walls of the shower and tub once a week.


10. Toilet

Our toilets are far from the dirtiest thing we touch. According to microbiologists, they have around 50 bacteria per square inch on the seat. So we need to clean it once a week. Things like restaurant menus, steering wheels, and even computer keyboards can be much dirtier. Still then, microbiologists say that’s no reason to skimp on bathroom cleaning. Cleaning experts agree it’s good to give the “throne” in our home a good wipe-down every week to keep it sparkling.


11. Plastic shower curtain

According to science, if we have a plastic shower curtain, we should put it in the wash every one to two weeks. A 2004 study suggested that shower curtains can be dangerously pathogenic for people with compromised immune systems.


12. Sponge

The sponge is one of the grossest things we own. Microbiologists say we should replace it once a week. It is said that the warm, moist environment inside a sponge is a delightful spot for bacteria to grow.


13. Doorknobs

Doorknobs can be great vessels for spreading germs quickly. So according to science, we need to wipe the ones in our house down about once every week or two. It is said that a germy door can spread a nasty virus around an office in mere hours. It asks us to make doorknob cleaning a part of our regular routine.


14. Carpets

According to microbiologists, if we have carpets, we should vacuum once a week, or twice in high-traffic areas, but more often if we’ve got pets.


15. Phone

Smartphones are with us nearly every waking moment. They often come into the bathroom and fall on the ground. They sit in our palms at almost every stage of the day, regardless of where our hands have been or how clean they are — and then we nestle the phones next to our ears. It is said that smartphones can pick up E. coli and Streptococcusbugs along the way. They can easily be dirtier than a toilet seat. So most infectious disease experts suggest that our phone should get a daily wipe down or we should give it a wipe at the end of the day.


16. Keyboard

One household item that’s often dirtier than a toilet seat is our keyboard. It’s suggested that it is good to wipe down our keyboard, mouse, and monitor every few days. It is said that the keyboard isn’t the only thing on our desk that’s germy. An Australian study found that the average work desk has 400 times the amount of bacteria found on a toilet seat. The National Center for Health Research suggests washing hands before and after using shared computers, especially during flu season.


17. Dog

Dog experts say a monthly bath is the best way to keep our pooch healthy. One may want to hop in the shower a little more often than this, of course. But according to dog “whisperer” Cesar Millan, most dogs should never be washed more than once a week.




What do you say they are really necessary and we should follow the instructions?

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