Have a bath tub of cake cream that"s been sitting in the refrigerator for a while and also wondering if it"s still for sure to eat? Here"s just how to tell.

You are watching: Does unopened sour cream go bad

Shelf Life

According come the USDA, cake cream (opened or unopened) is good for increase to 3 weeks ~ the sell-by date, as long as it"s to be stored in the refrigerator. This ascendancy of thumb is donate up through the Food Marketing institute in their customer guide come food quality and also safe handling, "The Food Keeper." They offer a 7 to 21-day window for making use of sour cream, presume it"s to be refrigerated at 40 F.

Inspect her sour cream to make sure it hasn't developed mold, an off-color, or an turn off smell. If nothing appears amiss, consider it for sure to use. One sign that isn't of worry is separation. When unsightly, it's actually regular for the fluid to different from the heavy cream. Friend can drain it turn off or mix it back in, as long as you usage a clean spoon.

" data-caption="" data-expand="300" id="mntl-sc-block-image_1-0-7" data-tracking-container="true"/>

The Spruce / Catherine Song

What reasons Spoiling?

Sour cream is developed from milk that has been pasteurized come kill many harmful bacteria. That is then fermented by healthy and balanced bacteria that develop lactic acid, providing it the sour flavor. Commercially-produced tart cream must adhere to security standards, while homemade sour cream may present a wild map of other bacteria types. Think of cake cream as a living product, as it still has live facets that were not eliminated by sterile canning processes.

Bacteria and also Molds

The protein and sugars in the milk carry out a happy society medium for the friendly sour-producing bacteria, and a organize of unfriendly bacteria and molds the could cause illness. Lock may gradually multiply over weeks in ~ refrigerated temperature or even faster if you leave your sour cream out at room temperature for any type of length of time. Friend may likewise inadvertently introduce extr bacteria and mold when go to usage your cake cream, one of two people from exposure to the air or by utilizing a spoon the isn't clean.

indicators of Spoilage

Even if her sour cream isn"t however at the "best by" or "use by" date, don"t eat it if girlfriend notice:

An turn off Smell: take it a noise of her sour cream. If that smells moldy, rancid, or stinky in any way beyond the normal sour smell, the probably has extra growth in it the will affect the flavor and also safety.Mold: If you view mold growing on the surface, the whole container requirements to go. Don't it is in tempted just to scoop the mold turn off the top and also eat the rest. The mold may extend further 보다 you're able to see with the nude eye.

See more: What Was Frank Gore 40 Yard Dash Time, Frank Gore Stats & Fantasy Ranking

Yellow or Discolored cake Cream: If the cream is no much longer white, that's a strong sign the it has significant growth that bacteria and fungi. 

The shelf life of foods items can be significantly shortened if castle aren't handled properly. Your sour cream may have actually been left out at room temperature at some point, even if it is by the manufacturer, seller or who who stays in her home. Or who may have stuck a dirty utensil into the container. Trust your eyes and also your nose once they tell you something isn't right.