You have plenty of time. Because we sterilize at 127°C, our bags are shelf-stable for 2 to 3 months at room temperature. If you want to keep them longer (up to 6 months), just put them in the fridge. They will wait for you.

You are never alone in this. We pride ourselves on turning total beginners into pros. We don't just ship you a box and disappear—we guide you from the first injection to the final harvest. Plus, you get exclusive access to our private Signal Community. It’s a friendly chat where we (and other growers) answer questions, troubleshoot photos, and celebrate your success. We’ve got your back.

It depends on your genetics (Liquid Culture is faster than Spores), but usually, it's 4 to 6 weeks total.

• Colonization: 2–3 weeks.

• Fruiting: 1–2 weeks.

• Patience pays off, but our optimized substrate speeds up the process by days compared to standard grain.

Don't throw it away after the first pick! Our bags have enough nutrients for 2 or even 3 flushes. After your first harvest, rehydrate the cake (pour some water in), and you’ll likely get another wave of mushrooms in a week.

We have a "No-Nonsense" Guarantee. If your bag arrives with punctures or visible contamination before you inject it, send us a photo immediately. We will ship you a fresh replacement for free. We stand behind our sterilization process.

Yes, absolutely! Grow bags are perfectly safe to keep indoors since they’re sealed and fitted with a filter patch that prevents unwanted microbes from entering. You can store them in the kitchen, pantry, or even under a table. The only thing to consider is fresh air exchange during fruiting — placing the bag in a well-ventilated space will help the mushrooms thrive.

Aim for 75°F - 78°F (24°C - 26°C).

• Under 70°F: Growth will be painfully slow (stalling).

• Over 80°F: This is the "Danger Zone" where bacteria grow faster than mushrooms.

• Pro Tip: Never place the bag directly on a heat mat. You will cook the bottom grains. Use indirect heat.

Not necessarily.

1. Did you inject into the middle? Growth starts in the center where you can't see it yet.

2. Are you using Spores? They can take up to 30 days just to start.

3. Is it too cold? Check your thermometer.

Give it another week. Mycelium is a living organism, not a robot. It runs on its own schedule.

Please don't! That’s the #1 rookie mistake. Adding too much liquid throws off the moisture balance and causes rot. You only need 3.5cc to 7cc max per bag. Save the rest of your syringe for the next bag. More liquid does not mean faster growth.