Either it oxidizes, causing a sour taste and a change in color, or if the juice contains pulp, the pulp will turn bitter in solution. Once you open a container of orange juice, it will begin to oxidize, and micro-organisms can enter. Fresh, pulpy juice is especially vulnerable to fermentation and bacterial growth. Even unopened, the natural sugars in the orange will start to convert into alcohol and carbon dioxide. This process of fermentation causes the juice to taste like wine or beer — but not in a good way!
If orange juice has expired beyond the best by date but is still unopened and stored well, it is likely fine to consume. Pasteurized juice has been heat treated to prevent the growth of bacteria such as E. Never consume fresh juice that has been left sitting out on the counter for more than a few hours, particularly in a warm climate.
Unpasteurized juice in particular may contain these micro-organisms, which will multiply even if the juice is properly refrigerated, leading to food borne illness which can cause symptoms like diarrhea, nausea, stomach cramps and vomiting. Contents show. Generally, orange juice falls into two categories — unpasteurized fresh and pasteurized shelf.
Both can be stored differently while they are still sealed and there will be storage instructions on the packaging that are best for you to follow to ensure your orange juice stays fresh for as long as possible. You will know whether or not your juice is pasteurized or not by where it is stored in the supermarket.
Shelf-stable juice will be found in un-refrigerated parts of the supermarket as they have been pasteurized. Fresh orange juice unpasteurized is perishable so will be stored in the refrigerated sections. If you pick up your juice from an unrefrigerated shelf then you can store it in the same conditions at home, in a cool, dry place. Your pantry or a cabinet away from any heat source will be perfect. Once you open it, make sure to store it in the refrigerator to ensure it stays fresh , it will then last for days.
For fresh juice , make sure you store it in the refrigerator as soon as you get it home and continue to store it there once opened. If you ensure it is stored properly your fresh orange juice will stay good unopened for about a week after its expiration date, just keep an eye out for those spoilage signs we mentioned earlier!
Once opened, it will stay good in the refrigerator for up to a week. Otherwise, make sure you pop it in the refrigerator and consume within 48 hours. When frozen, your juice can last for several months if kept at 0 degrees F or below. Before using any orange juice, especially one past its expiration date, give it a whiff. If the juice smells sour, similar to vinegar or alcohol, it's gone bad.
Spoiled juice may appear darker than usual in color, or the container may have expanded due to the gasses given off by the microorganisms in the spoiled juice.
Any visible mold in the juice or anywhere inside the container definitely means the juice has expired and may be dangerous to drink. Not only will spoiled juice taste unpleasantly "fizzy" and sour if you attempt to drink it, it will also carry harmful bacteria or mold that will sicken anyone who ingests it, warns the U. Food and Drug Administration. Over time, yeast will begin to ferment your orange juice, converting the sugars in it to alcohol and carbon dioxide gas, which is why containers of spoiled orange juice will expand and appear bloated.
Once you open your juice, oxygen will encourage the growth of these harmful yeasts, molds and even bacteria.
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