What is the cause of the rotten egg smell in a house?

In this brief article, we will answer the question “what is the cause of rotten egg smell in a house?”. We will also discuss how to get rid of rotten egg smell.

What is the cause of the rotten egg smell in a house?

The cause of the odor of rotten gas is a chemical gas known as hydrogen sulphide. The breakdown of sulphates in the egg into organic compounds by bacteria and germs results in this byproduct. If there isn’t enough air, things start to smell bad. There are a number of potential causes for these odors in the kitchen and bathroom, including gas leaks, sewage system breakdown, etc.

Another reason is a gas leak, such as from a stove. It could be the source of a rotten egg smell. Calling the fire department or utility service provider right away is essential given the severity of the situation. There are a number of possible causes for the odor, including a problem with the water heater, the stove’s gas line, or something else entirely.

Methane gas from your sewage gas filter could be lingering in your sink or bathtub if you don’t use them very often. The p trap is to blame for this effect. The pipe under your bathtub or sink has the shape of a “u.”

Due to the presence of a trace amount of water, sewer gas is kept outside. However, if you haven’t used the sink or bathtub in a while, the p trap will dry out and let sewer gas into the room, which can be quite unpleasant.

There is a fantastic solution to this issue, thankfully. You need only follow your nose if you happen to notice the odor of sour eggs in your toilet. It’s time to let the water run for 10 minutes so the p trap can fill up with water from the sink or tub.

The sewer gas will be blocked from entering the house. If you need expert help, you can always call a plumber. To avoid any lingering odors in the kitchen, you should also regularly clean the garbage disposal. The rotten egg odor may be coming from the drywall, which, if it contains too much sulphur, can leave a lingering, unpleasant odor in the home.

Experts recommend routinely inspecting the copper condenser coils in your fridge and air conditioner. Corrosion from off-gassing is to blame if you find black ash hiding in the crevices between the stove and the wall. Plasterboard replacement should fix the problem.

How to remove rotten egg smell?

Some methods for getting rid of that rotten egg odor at home are:

  • Charcoal is a great natural way to get rid of unpleasant odors like sulphur or rotten eggs around the house. Filters made from carbon or charcoal are thought to be particularly useful for eliminating unpleasant odors from the home environment.
  • Sulfur can be removed from the water with the help of a water purifier. Consequently, using it can eliminate the sour egg odor in the water supply. The stench of rotten eggs or sulphur may originate in the kitchen or other household appliances. By deodorizing appliances, offensive odors can be eliminated from the home.
  • Gram flour is added to dishes to mask unpleasant odors, and it works particularly well for getting rid of rotten egg smells. Prepare the dish by rubbing it down with gramme flour and letting it sit for about 10 minutes. The odor will disappear after a thorough rinsing with fresh water.
  • Coffee powders are another effective material for eliminating the stale egg odor at home. Put some coffee grounds in a bowl and cover them with water. Let them sit for 10 minutes. Then, liberally sprinkle it on the home electronics giving off a sulphur odor. Scrub them with a wet sponge and some water. Smells fade with time.
  • A gas leak is the most likely cause of the sulphurous odor in the house. There should be no smoke or other odors coming from appliances or fixtures that use open flame or electricity near a gas line.
  • Putrid odors can be traced back to improperly installed vent pipes. If there is a blockage in the pipes, the affected section should be cut out and a vent fitted to the new opening. Eliminating the odor will be no problem.
  • A foul odor can also be caused by the biological slime that grows in the drains of the bathroom sink, shower, and bathtub. To fix this, take off the drain pipe’s cap and flush the tubes with water. You can use a brush and some soapy water to clean the pipes. There will be no stench of decay in the house.


In this brief article, we will answer the question “what are the cause of rotten egg smell in a house?”. We will also discuss how to get rid of rotten egg smell.