If your asparagus has gone bad, it will have a bad, odorous taste, and most likely also has one or two, if not all, the other attributes of bad asparagus we went over above. If your asparagus stems are discolored, that is also an indicator of bad asparagus.
If you notice large, black-colored spots on the stems of your asparagus, it is best to get rid of such asparagus because it has gone bad. As with many other vegetables, if any parts of your asparagus stems have developed a bad taint, those bad spots can be cut off and discarded. If some of the asparagus has a few bad spots, then, before other major signs of spoilage occur, these bad spots can be cut off and you can still use the remaining asparagus.
|Appearance||Mold starts to appear on it|
|Odor||It becomes limp and emits rancid odor|
|Color||Its color changes to black|
It is OK to throw away half, just cut off the bad spots from the asparagus, and use the rest. Even if the tips are turning black and are not edible anymore, you can probably still make use of the remaining stalks.
The tips of the asparagus will be the first to go bad, becoming limp, black, and having a rancid odor. Asparagus starts going bad in the tips first, so if the tips are turning black or starting to turn color, they are too old to eat. The tips are the most desired part of asparagus, so if the tips are turning dark green or black, it is going bad.
The best way to tell if your asparagus is going bad is to look at the tips, they will start turning very dark green (almost black) and if you touch them, they will simply melt in between your fingers. The best parts of an asparagus spear are the delicate tips, but these are unfortunately the first parts of an asparagus spear to start spoiling. It is the tips of the asparagus that begin to deteriorate the earliest, and also are the most desired parts of asparagus.
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For when you notice that tips of asparagus are starting to turn brown and get black spots, you can trim off the tips (even if it is the best part) and still use the stalks. If asparagus has started to deteriorate, you will notice that the tips turn gradually darker green, until the tips are almost black. If only the tips are almost completely black and will sludge up with just a light touch, you have some really bad asparagus. In addition to turning black, asparagus tips or heads also will get rubbery and crumble at touch.
If you touch or slit the tips of your asparagus and they seem slimy or slippery, you should avoid eating that. You can trim off the tips right now and prepare the asparagus, or else the stalks too will be soon slimy and rubbery and not usable, since your asparagus has gone bad and might start to form mould. If when touching the tips, you get the feeling that the tips are limp, then the asparagus has a chance to be bad. If the remaining stalk is unbroken, then you can cut the tips and cook the remaining asparagus.
Cooked asparagus is pretty mild in any case, so it is not going to make a huge difference if you started out with somewhat limp stalks. You can pull apart the less-edible, woody stems from the more delicate parts of your asparagus by holding your asparagus stalks by their base and bending the stalks slightly, working up to where you get to a point where the stalks will snap as you bend them. When asparagus is going bad, the stalks will begin to appear to wrinkle up and become very limp, similar to a spaghetti noodle.
Even though asparagus stems may look limp and a little bit shriveled, they are still good to prepare and eat as long as you do not have any other signs that asparagus is going bad. Although the texture will not look quite right, they are usually still safe to eat, and perfect for cooking asparagus with olive oil or throwing it into soup. You can also toss some lemon juice or another cooking acid, such as vinegar, over your asparagus; it will help to soften the fibers of raw asparagus and makes digesting them easier.
If you are unsure whether or not you are going to use asparagus before you are out, or you have got a great deal on a big batch of asparagus, you may want to consider freezing it so it stays fresh longer. Just remember to freeze asparagus at 0degF, so that you can maintain its best quality for about 10 to 12 months. If you are going to freeze your asparagus, which is probably the case since freezing is the best way to preserve any vegetable over an extended period of time, be sure to completely remove all of the water remaining from when you blanched or cooked it. The freezing process will change the texture of asparagus a bit, so it will never look exactly the same as fresh, but freezing can be a cheap way of getting the benefits of this nutrient-dense vegetable during the off-season.
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Eating spoiled asparagus that has mold is extremely dangerous, so if you see mold on it, simply toss this vegetable. If you find any vague mould on the asparagus, it is a sign of bad asparagus, and you should discard it.
A foul odor coming off of asparagus will not be the only indication of its spoiled state, and if you noticed that a foul odor coming off asparagus, then it is more than likely you will also see other signs of spoiled state, like limp stems or blackened, blackened tips. If the vegetable has developed slimy texture and bad odor, toss it out, because those are signs of spoiled asparagus. Some will say that you should simply cut any fungus-y parts out, but we suggest simply throwing asparagus in the trash if you notice mold.
What does expired asparagus look like?
The tips of the asparagus will turn from a gradually lighter shade of green to virtually black if it has started to rot. The stalk may start to develop mold patches and become limp and mushy. As decomposition sets in, it will start to emit a foul, smelly scent.
What happens if you eat bad asparagus?
Asparagus is a tricky vegetable. It can go bad quickly if it’s not stored properly, but even if it’s starting to spoil, it may not show any obvious signs. If you’re not sure whether your asparagus is still good, the best thing to do is to err on the side of caution and throw it out. Eating bad asparagus can give you an upset stomach.
How long does asparagus last in the fridge?
So, how long does asparagus last in the fridge? The answer is 5 to 7 days. If you’re planning on eating your asparagus within a few days, then you can just store it in the fridge like you would any other vegetable. But if you want your asparagus to last a bit longer, then you’ll need to take some extra steps.