You finally determined to clean her pantry and guess what, there are several unopened jams in there. Some of them are past the day on the label, and you’re not quite sure if you must discard them right away, or not. Go jam walk bad?

Or probably there’s a half-open jam in the fridge, and you’re wondering just how long will certainly it critical in there prior to it walk bag. You yes, really wouldn’t favor it to go bad, however watching her sugar input is vital for you, so girlfriend eat just a little at a time. Exactly how long does an opened jam last?

If friend have any type of questions or doubts about storage, shelf life, or going bad of jams, this post is for you. Review on.

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Image used under an imaginative Commons native Marco Verch

How to keep Jam

Storing jam is quite similar to save on computer mustard or ketchup. While they taste naught alike, the factor is that all of them contain fairly a lot of natural preservatives. In the case of jams, that preventive is sugar.

You have to store an unopened jar in a cool and also dark place, far from sunlight and also sources the heat. Exposure come light and heat might degrade the jam quickly, i m sorry may impact its flavor, consistency, and also appearance. The pantry or a cabinet in the kitchen room the ideal choices. That’s true because that both store-bought jams and also properly-canned homemade ones.

Once you open the jar, it’s time to deliver the jam come the fridge. psychic to always seal the jug tightly and also put it earlier into refrigeration after scooping as lot as girlfriend need. This guarantee the jam retains great quality because that the longest and minimizes the possibility of microbial pollution that can make the spoil.

Like with other foods that us scoop, remember to always usage clean spoons and never “double-dip.” In various other words, practice suitable food hygiene. The modus operandi for both store-bought and homemade jams is the same here as well.

Raspberry jam closeup

How long Do Jams Last

Let’s begin with one unopened jar of jam.

If it’s a store-bought variety, it generally comes v a best-by date. The course, that day is just an approximation, and also a jar with an untouched seal can last in good quality for lot longer.

Many suppliers tried the jam lock stored because that over two decades and it to be still perfectly fine. Therefore while usually, the best-by date is in ~ 12 come 24 months of the production date, girlfriend can quickly assume the jam need to last years more.

For unopened homemade jams, the general consensus is that you can conveniently store them for at least a year, if not more.

Of course, homemade jams usually don’t retain taste and store-bought ones, but that doesn’t median that after 1.5 or 2 year the jam will taste bland. So as long as the seal remains intact, it must be perfectly safe (and tasty!) because that at least a few years more.

Gingerbread cake through jam and sprinkles
Now let’s talk about opened jams. Many manufacturers typically suggest come eat your product within two weeks to a month. That course, that’s for finest quality only, and also if girlfriend take an excellent care the the jam, that should quickly retain flavor because that at the very least a couple of months.

When it concerns homemade jams, one month in the refrigerator is a quite safe calculation of how long will certainly the product retain flavor. Prefer with store-bought jams, if her storage techniques and an excellent and proper, this fruity treat will certainly keep for longer.

Jam (store-bought, unopened)Best-by + 1+ years
Jam (store-bought, opened)2+ months
Jam (homemade, unopened)1 year
Jam (homemade, opened)1+ months

Please keep in mind that the periods above are because that bets quality. Properly stored jam should easily last months longer.

Adding jam come gingerbread cake

How to Tell if Jam Is Bad?

First, let’s talk around a adjust to jam the isn’t a authorize of that going bad.

Some jams naturally turn a darker shade over time, also when the seasoned is unopened. That’s particularly true for jams there is no preservatives or those with less sugar. Therefore there’s no must worry around your light-colored spreads darkening. That’s just the nature that the beast. Slim taste adjust over time is also expected.

Now come the indicators of a poor jam. Typical signs of jam spoilage incorporate mold or yeast growth, or any kind of off odor. If the jam smells choose yeast, alcohol, or anything fermented, remove it. Same thing if over there are any kind of organic growth on the surface.

If everything looks and smells okay, feel cost-free to offer it a taste. If anything seems off, litter it out. Otherwise, feel free to reap it.

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Pancakes and raspberry jam

About The Author


Marcin Skrzypiec
Marcin is the man behind After ~ writing an ext than 300 short articles on food storage, shelf life, and also spoilage, he"s learned a point or 2 on the topic.