Do Shrooms Go Bad?

The world of psychedelics is a fascinating and mysterious one. And within this realm, magic mushrooms reign supreme. These little fungi have been used for centuries by various cultures for their mind-altering effects. But, like any other natural substance, the question arises – do magic mushrooms go bad? In this article, we’ll explore the answer to this question and delve into the science behind it. So, buckle up, and let’s journey into the world of magic mushrooms and their shelf life. 

Why Do Shrooms Expire? 

Let’s talk about magic mushrooms – the groovy fungi that can take you on a wild ride. While they may be all-natural, they still need some TLC to stay in tip-top shape. You see, the active ingredients in magic mushrooms, psilocybin and psilocin, are delicate little things that can easily get messed up by heat, moisture, and oxygen. If you leave your magic mushrooms out for too long, they can get funky with bacteria and other unsavory things. This not only makes them less potent, but it can also be downright dangerous. 

So, if you want to have the best trip possible (and who wouldn’t?), it’s important to store magic mushrooms properly. Keep them in a cool, dry place, away from direct sunlight and any sources of moisture. A sealed container like a mason jar works great. 

How Long Do Mushrooms Last?

The shelf life of magic mushrooms can vary depending on various factors, including how they are stored and the type of mushroom. Fresh magic mushrooms will generally last for about a week if kept in the refrigerator. On the other hand, dried mushrooms can last several months if stored properly.

Here’s a quick guide to the shelf life of shrooms:

1. Fresh Shrooms: Enjoy these earthy delights within a week of purchase for maximum flavor and texture.

2. Dried Shrooms: Indefinitely extend the life of your mushrooms by drying them – perfect for cooking and snacking whenever you please.

3. Capsuled Shrooms: Take your fungi on the go with these convenient capsules, which can last up to a year if stored properly.

4. Mushroom Edibles: Satisfy your cravings with these delectable treats, which typically have a shelf life of 1-2 weeks, depending on storage conditions.

It is worth noting that the potency of magic mushrooms can also decrease over time, particularly if they are not stored correctly. This means that even if your mushrooms are still safe to consume, they may not be as effective as they once were.

The shelf life of magic mushrooms is relatively short, but can be extended by storing them properly. As with any food or drug, it is important to use your best judgement when consuming magic mushrooms, and to always err on the side of caution.

How to Tell If Magic Mushrooms Have Gone Bad?

Before you take a trip down the rabbit hole with some magic mushrooms, you need to spot the signs of a bad batch. Just like any perishable item, mushrooms can spoil and lose their potency.  In this section, we’ll show you how to tell if your magic mushrooms have gone bad to ensure your psychedelic experience remains safe and effective.


Though psychoactive substances like psilocybin are generally stable, the physical properties of the mushroom itself can change over time. While slight discolorations may not necessarily indicate a loss in potency, it’s important to be aware of any significant changes in appearance that may suggest spoilage or contamination.

The extent and type of discoloration can depend on various factors such as exposure to light, moisture content, and the type of mushroom. Fresh magic mushrooms are usually brown or tan, but if they appear black, blue, or green, it’s a clear indication that they have begun to spoil. 

Visible Signs of Mold

Mold can grow on psychedelics if exposed to moisture or not stored properly. Spotting visible signs of mold on your magic mushrooms indicates that they may have gone bad and shouldn’t be consumed. 

The appearance of green, black, or white fuzzy spots on the mushrooms is a clear sign that they’ve been contaminated by mold. Mold growth can make magic mushrooms unsafe for consumption as it produces mycotoxins, which can cause mild to severe health problems.

In extreme cases, these toxins can lead to nausea, vomiting, diarrhea, and even liver damage. Therefore, it’s crucial to inspect your magic mushrooms before consuming them and discard any that show visible signs of mold growth.

Foul Odor

If your magic mushrooms emit a foul odor, there’s a high chance they’re no longer safe to consume. Fresh mushrooms should have a slightly earthy aroma, so if they smell musty or moldy, it’s likely that harmful bacteria or fungi have developed on them.  If you’re unsure about the safety of your mushrooms, it’s best not to take any chances and dispose of them immediately to avoid potential harm.


You’ll notice a slimy texture on the surface of your shrooms if they’ve been improperly stored or contaminated with bacteria. This sliminess is a sign that the mushrooms are no longer fresh and have started to degrade. 

The sliminess on the surface of your shrooms can be caused by various factors such as moisture, heat, or contamination from microorganisms. If left unchecked, this sliminess can lead to mold growth which poses health risks when consumed. You can prevent excess moisture for store-bought shrooms by grabbing a paper bag, filling it with your ‘shrooms, and popping it in the fridge. Easy peasy!

Shrinkage in size

Another indicator of potential spoilage or degradation in quality for magic mushrooms is a decrease in size. Shrooms stored improperly or for too long often become smaller, wrinkled, and less potent than fresh ones. This shrinkage in size can be due to the loss of moisture content or the breakdown of psilocin, the active ingredient responsible for its psychedelic effects.

To ensure the safety and potency of your magic mushrooms, it’s best to store them properly and use them within a reasonable amount of time. If you notice any discolorations or shrinkage in size, it may be time to dispose of them and obtain fresh ones.

Side Effects of Consuming Bad Shrooms

While magic mushrooms can induce euphoria, creativity, and spiritual experiences, consuming expired or contaminated shrooms can have unpleasant or dangerous effects.

Reduced Potency

You may notice that magic mushrooms lose their potency over time, causing a less intense psychedelic experience. This reduced potency is due to the natural process of oxidation, which breaks down the active compounds in the mushrooms.

Although not necessarily dangerous, they can cause unexpected effects and lead to a bad trip.  Here are some potential dangers of consuming expired magic mushrooms:

– Increased risk of nausea and vomiting

– Reduced effectiveness in treating mental health conditions such as depression and anxiety

– Possible contamination from mold or bacteria growth during storage

– Difficulty determining proper dosage due to uncertain potency levels

To prevent these risks, paying attention to expiration dates and properly storing your mushrooms in an airtight container away from light and moisture is important. It’s also recommended to try microdosing when consuming older mushrooms to gauge their potency before diving into a full trip.

Remember, while psychedelics can offer transformative experiences, it’s important to approach them responsibly and with caution. While magic mushrooms do not technically expire like food products do, they will gradually lose their potency over time due to natural oxidation processes.

Increased Risk of Negative Side Effects

Consuming bad shrooms can be risky business. You risk ingesting harmful bacteria and other toxins that may have grown on the mushrooms. This can lead to serious health issues like liver damage and kidney failure. 

Best Practices for Storing Magic Mushrooms

Whether you’re a seasoned weed enthusiast or a first-time user, proper storage methods help ensure your mushrooms retain their potency and freshness for as long as possible. Here, we’ll explore the best practices for storing fresh and dried magic mushrooms, so you can enjoy a safe and mind-bending experience whenever you indulge.

Storing Fresh Shrooms 

When storing fresh magic mushrooms, it’s important to keep them in a cool, dark place. This can help prevent them from drying out or spoiling too quickly.  If you’re planning on storing fresh magic mushrooms for an extended period, air drying them is a good idea to preserve their potency and flavor for longer. This also makes them easier to store. Labeling your container with the date you dried your mushrooms is also a good idea. This can help you track how long they’ve been in storage and when it’s time to use them.

Storing Dried Shrooms

When storing dried magic mushrooms, it’s important to keep them in a cool, dry place and avoid storing them in areas that are too humid or warm. If you plan to store your dried magic mushrooms for an extended period, consider storing them in the freezer. This can help extend their shelf life even further. When it’s time to use your psilocybin mushrooms, be sure to inspect them carefully before consuming them. Look for any signs of mold or spoilage, and discard any mushrooms that appear to be damaged or past their prime.


Magic mushrooms may not necessarily go bad in the traditional sense, but they can certainly lose their potency over time. It’s important to store shrooms properly and be mindful of how old they are before consuming them. While there may be certain risks involved with consuming magic mushrooms, the potential benefits and experiences they can offer are truly unique and cannot be replicated by any other substance. So, whether you’re a seasoned cannabis user or a curious first-timer, remember to treat these powerful fungi with caution and always err on the side of safety. Happy tripping!


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