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Its smells like sour milk but nothing has been spilt

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Check the drain hole and unblock it

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My fridge has been cleaned after a smell of sour milk or rotting was washed thoroughly,,,nothing was rancid in hte fridgeSTINKS

Remove the evaporation pan from underneath, dump it, and scrub it clean. Place an open box of bicarb of soda inside the refrigerator to absorb odor. Refresh the bicarb often. As a last step, you may have to use a toothbrush to scrub internal seams where something putrid has collected. BTW, the used bicarb can be sprinkled in the sink and repurposed to clean it.

Jun 21, 2018 | Refrigerators

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Why does milk spoil

What's Milk Got?
The main nutrients of milk are lactose, (the milk sugar some people are intolerant of), proteins of various sorts, and butterfat, all sloshing around in about 85 to 90% water. It total, milk has about 100,000 different compounds in it, and you could probably find a microbe that likes every one.
In the old days, if you got milk, you could also get Typhoid and Scarlet fever, Diphtheria, Tuberculosis or various diarrheal diseases. Mmmm. Pasteurization is named for Louis Pasteur who, in 1859, showed how heating up wine or beer would keep it from going cloudy because of microbes. Franz Von Soxhlet, a German agricultural chemist with impressive sideburns and a great interest in milk, was actually the first to suggest sterilizing milk for infants in 1886. Nowadays, it is usually heated to 71 C and then rapidly cooled to kill off bacteria and other microbes.
pH, duh
Bacteria tend to get a lot of bad press. But lactic acid bacteria occur naturally on plants like grasses and can easily end up in milk. They ferment lactose at room temperature and turn it into lactic acid. More acid means more hydrogen ions, a lower pH and a sour taste. Lower pH change the structure of proteins like casein, which gives milk its whiteness, so it curdles into clumps called curds. The leftover yellowy liquid is whey. Apparently, little Miss Muffet was just having unpasteurized milk that had been left out for a while. Microbes like Lactococcus lactis (nominated the Wisconsin "State Microbe") get added back to the milk after pasteurization to make dairy products like yogurt and cheese.
Making Scents of a New Weird Odour
So the sourness is one thing, and curdling is another. Smell is yet another milk phenomenon. After the milk container has been opened, mystery microbes can get back in. And if you leave it out, they can reproduce more quickly. Other bacteria break down milk proteins that result in smelly byproducts. Still others can break down the butterfat that smells bad. And some molds can use lactic acid, break the proteins or attack the fat and give off unappetizing aromas.

Feb 22, 2018 | Miscellaneous

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Milk leaked out into the back seat our truck I didn't know it until it started to smell. Iv'e sprayed nearly a whole bottle of febreze for fabric on it. while it is wet with the spray you can't smell the...

Try baking soda.
Take a box or two of it and sprinkle it all over the area where the milk was.
Leave it for up to week, and be careful to keep it dry.
Later on, you can vacuum up the "dust".
God bless your efforts.

Dec 11, 2017 | Ovens

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Sour smell coming from back of fridge on outside

Check the drain pan under unit. Maybe something has got in there. May need to remove the back our go through the front. Can pour a very small amount of bleach our Lysol to kill in the drain pan to kill mold. Hope that helps.

Aug 18, 2012 | Hoover Refrigerators

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A carton of milk spilled in the refrigerator draining into the evaporator pan which cannot be accessed. any suggestions to eliminate the sour milk smell

take unit outside........ flush drain evap pan out with warm water and clorine bleach..hope you get all dry residue out......or take it apart and wash out evap pan...can you get to it from underneath???? easier.
if you do not remove milk residue you kitchen will smell forever...remember baby smells????

Feb 19, 2010 | KitchenAid KBFA25ER Bottom Freezer French...

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My Son had spilt his milk into the Laptop. I need to get in and assure I got all the Milk out. I have open all the compartment door on the bottom,all is dry. My next concern is the Keyboard, I am havind...


It will smell sour otherwise.


Turn laptop over onto a towel on a counter top.make sure the keyboard is touching the towel. If you can remove the keys of the keyboard that would be nice too. Make sure the laptop is off.

Wait a 3-12 hours depending on how well you think you did it before turning it back on.

If you don't get it out fast enough and let it sit, it will smell like a pile of poo xD.


Oct 18, 2009 | Office Equipment & Supplies

1 Answer

Sour Vinager odor in vents when using AC in a 2003 325i???

milk may have been split in the vents
it goes very sour & vandals sometimes do it on the street!

Jul 20, 2009 | 2003 BMW 325

1 Answer

How to clean the pipes in my dishwasher. It smells like sour milk.

use some Clorox and make it a hot wash after you clean the filter and filter compartment.

Jun 28, 2008 | Dishwashers

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