Shipping & Returns

We are fully committed to the quality of our products. Should you have any inquiries or apprehensions about the product, please reach out to us. We can help troubleshoot, resolve any issues, provide replacements, or process a refund.

To request a replacement, refund, or exchange please email info@rareearthmushroom.com

Our standard shipping time is 3-5 business days. You can choose expedited shipping at checkout for a faster delivery.

Our packing and shipping team works Monday-Friday 9am-5pm PST

Once your order is shipped, you will receive a confirmation email with a tracking number. Use this number to track your package on our website or the carrier's site.

In the rare event of loss or damage, please reach out to our customer support with your order number and details. We will investigate the issue and work to find a satisfactory resolution, which may include a replacement or refund.

At this time we do not ship outside the United States.


Absolutely not! Start simple with our beginner-friendly All-In-One grow bag and Liquid Culture. They're perfect for newcomers and don't require any fancy tools. As you get the hang of it, you can explore more advanced options.

Mushrooms generally like cool, moist, shady places, with temperatures around 60-75 degrees. Different mushrooms might need more warmth or can handle different humidity levels.

Definitely! With a grown-up to guide them, kids find growing and harvesting mushrooms a fun and educational activity. Plus, they get to see the full life cycle of nature in action!

Yes, we love working with stores and farms! We help you get the best supplies for growing beautiful mushrooms. Inquire here to find out if we are good fit for your commercial or retail business!

Yes, mushrooms need some light, but they can’t handle bright sunlight. They do best with gentle, indirect light. If you’re growing them in a dark spot, a small grow light can give them just the right amount of light they need to thrive.

Definitely. Always cook home-grown mushrooms well. If it's a new type for you, try just a little first to check for allergies.

All-In-One Mushroom Fruiting Bag

The All In One bag combines substrate and grain with a self-sealing injection port. It’s the easiest, cleanest way to grow mushrooms - just inject your genetics and watch them grow!

For step-by-step instructions, watch our instructional video. It guides you through using the All In One bag, ensuring a successful and enjoyable mushroom growing experience.

Our unique cube-shaped bag, created through our sterilization process, ensures an even distribution of substrate and grain, and helps keep the bag contaminant-free.

No additional materials are needed. Our All In One bag has everything for your mushrooms to thrive - just add your choice of spores!

Store it in a cool, dry place. Properly sealed, the All In One bag remains ready for use for several months.

Liquid Cultures

Liquid culture is a nutrient solution containing mushroom mycelium. Inject a syringe of it into a grain or All In One bag to start your mushroom cultivation.

We offer six strains: Red Reishi, Lion’s Mane, Portobello, Shiitake, Blue Oyster, and Italian Oyster. Each one brings a unique flavor and growing experience. We hope to be able to offer more strains in the future, so please let us know if you’d like to see any in particular!

For best results, use one entire syringe of liquid culture per grain or All In One bag. This ensures enough mushroom cells to colonize the substrate.

Keep the liquid culture syringes in the fridge, in their packaging bag. This preserves their quality until you’re ready to use them.

Our liquid cultures are perfect for use with our grain and All In One bags. They make starting your mushroom cultivation straightforward and efficient.

Sterilized Grain

The grain acts like a foundation, giving mushroom spores a place to start growing. It’s like soil for plants, but for mushrooms!

Stored properly, our grain can last for several months. Keep it in a cool, dry place until you’re ready to use it.

Absolutely! Our grain is prepped and ready for you to start growing mushrooms. Just add your mushroom spores or liquid culture.

It’s best to use fresh grain for each grow to ensure the best mushroom quality and to avoid contamination.

Our grain is versatile! It works well for a variety of mushrooms, from oysters to shiitakes.


Our CVG substrate, a blend of coco coir, vermiculite, and gypsum, provides a balanced, nutrient-rich environment for mushrooms. It’s designed to support healthy growth without the need for manure.

We skip manure to minimize contamination risks and because our CVG mix provides all the necessary nutrients for your mushrooms to thrive.

Yes, our substrate is pre-mixed and ready for use. Just add your mushroom spores or liquid culture, and you’re good to go.

Keep the substrate in a cool, dry place. Sealed properly, it can last for several months before you need to use it.

For detailed guidance on the right amount of substrate for your setup, check out our instructional video. It’ll show you exactly how to use our CVG substrate for the best results.

Have a Question? We’re Here to Help.

Explore our FAQs page or drop us a line below.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.