30 days. One email. We make it right.
Every Maya Mushroom ShroomBag ships fully colonized and ready to fruit. If yours arrives damaged, shows contamination, or fails to produce a harvest within 30 days of delivery, we replace it or refund it. No return shipping. No photo essay.
We grow these kits ourselves in Buckhannon, West Virginia. When one doesn't perform, that's on us — not you.
How a claim works.
Email us within 30 days
Send a note to grow@mayamushroom.com with your order number. Subject line: "ShroomBag claim."
Attach one or two photos
A clear photo of the bag — top-down is best. We don't need video, charts, or a moisture log.
Tell us replacement or refund
You choose. We ship the replacement at the next safe weather window, or refund the original card in about 3 business days.
What's covered.
- ✓Kit arrives damaged, crushed, or leaking from shipping.
- ✓Green, black, or pink contamination inside the substrate within 30 days of delivery.
- ✓You followed the instructions and the kit produced no harvestable flush.
- ✓Gift recipients — the guarantee transfers with the kit.
What's not covered.
- ·Freezing in an unattended mailbox after a successful delivery.
- ·Kits left sealed in a hot car or sunny window.
- ·Third-flush attempts after two indoor harvests have already been taken.
- ·Kits buried outdoors before the indoor flushes are complete.
- ·Pre-pinning inside the unopened bag — that's a green light, not a defect.
Guarantee FAQ
What does the 30-day ShroomBag Guarantee cover?
Three things: (1) the kit arrived damaged or leaking, (2) the block shows contamination — green, black, or pink fuzz that isn't your mushroom — within 30 days of delivery, or (3) you followed the instructions and the kit produced no harvestable flush. Any of those, we replace the kit or refund it.
How do I file a claim?
Email grow@mayamushroom.com within 30 days of delivery with your order number and one or two photos of the bag. We don't need a video diary or a moisture log. A clear photo and a sentence about what happened is enough.
Do I have to ship the kit back?
No. Returning a live mycelial culture by mail is messy and unnecessary. Once we've seen a photo we either ship a replacement or refund your card.
Replacement or refund — who chooses?
You do. Tell us in your email which you'd prefer. Replacements ship at the next safe weather window. Refunds go back to the original payment method, usually within 3 business days.
What's not covered?
Damage from freezing in an unattended mailbox after a successful delivery, kits left sealed in a hot car or window, third-flush attempts after the kit has already produced two harvests, and kits used outdoors before the indoor flushes are complete. Also: the guarantee is for the kit itself, not the price of mushrooms you didn't get to eat.
Pins are forming inside the unopened bag — is that a problem?
No. That's called pre-pinning and it means the kit is ready to fruit. Cut the bag according to the instructions and continue. Pre-pinning is not a defect and is not a guarantee claim — it's a green light.
I see green mold. Is that always a claim?
Green or black fuzz inside the substrate within the first 30 days is contamination and is covered. Surface mold on a spent block after you've already harvested two flushes is normal end-of-life and is not a defect. When in doubt, send a photo.
Does the guarantee transfer if the kit was a gift?
Yes. If you received a Maya kit as a gift and have the order number (or the gift-giver's name and email), the guarantee is yours.
grow@mayamushroom.com
Include your order number and one or two photos. A human at the farm reads every claim — usually same day.