Kickstarter launches Fall 2026

Grow lion’s mane in complete silence.

<18dB silent2-min setupHarvest in 25 days

The Sh-Room Solo fits on a kitchen counter and runs quieter than a library.

78% recycled materials

No card, nothing charged. Rewards and pricing are not set; nothing is for sale until the Kickstarter launches.

Plan your first grow →
<18dB silent
2-Min Setup
78% Recycled
Sh-Room Solo on a kitchen counter with mushrooms growing inside
Temperature
75°F Auto

Sh-Room in 15 seconds

Press play. No sound unless you turn it on.

Text version:
  1. Most grow kits hum all night. Then they are thrown out after a grow or two.
  2. A quiet chamber for the counter. It holds warmth and humidity. Design target: under 18 dB.
  3. It heats. It does not cool. Some species need a cooler room. The site tells you which.
  4. Plan your first grow. Three questions: your room, your species, your refill. Start the plan
  5. Sh-Room. A quiet mushroom chamber for your counter. A prototype; the Kickstarter has not launched. sh-room.com
The Technology

Two-way thermal control.
Solid-state. Silent.

Growing mushrooms is really a temperature problem: warm to colonize, cool to fruit. The travel coolers do it with a thermoelectric chip that heats or cools by reversing its current. We bring that same solid-state control to your counter — no compressor, nothing to hear.

APEX: thermoelectric + heat + fan + camcontainedgrow bagRecycled shellCoir + EVA insulationESP32-CAM

Colonization — warm

Every Sh-Room heats and holds 65–75°F while the mycelium claims the block, humidifies to 90%+, and keeps air moving. This is the base unit, fully.

Fruiting — cool (Pro)

Cool-loving species — shiitake, maitake, blue oyster — fruit at 55–65°F, below a warm kitchen. The Pro's thermoelectric module drives the chamber down and holds it there; it even delivers the cold-shock that triggers pinning. The base unit heats only, so pair it with a cool room for these species.

The loop

The camera watches, the controller holds the setpoint, the app reads the flush on-device and tells you the one thing to do next. Set it and grow.

Thermal core

Base heats · Pro cools

A W1209 controller + 12W infrared film hold colonization warmth on every unit. The Pro adds a thermoelectric (Peltier) module — the same solid-state part in those travel coolers — that flips polarity to actively cool for fruiting. No compressor, no refrigerant, no noise.

Check your room's window →

Sensing & intelligence

On-device, private

A built-in ESP32-CAM watches the flush. The companion app reads it with Apple's on-device model and coaches you to the harvest window — a call, a thing to watch, a reflection. Nothing leaves your phone.

How the coach works →

Honest build

Off-the-shelf · 78% recycled

Every part is a standard component you can replace with a screwdriver — controller, fan, heating film, LED, camera. No proprietary anything, so it scales with any contract manufacturer and never needs to be shipped back to be fixed.

Full specifications →

Honest scope: the base Sh-Room heats, humidifies, and circulates air — it does not refrigerate below room temperature. Two-way thermoelectric cooling is the Sh-Room Pro, our headline stretch goal. We'd rather name exactly what each unit does than show you a spec it can't hit.

Bag to plate in 25 days

Watch a grow, day by day.

Drag the slider to scrub through a full cycle — from the day you plug in to the day you harvest. No green thumb required.

Day 0
Inoculation
Plug inHarvest · day 25

What's happening

Day 0. You drop a colonized grow bag into the precision sleeve and plug in the single 12V adapter. The Smart Spine holds 75°F automatically.

Your job: Two-minute setup. Then leave it alone.

Join the waitlist →

25 days, day by day

  1. Inoculation
    Day 0–1
  2. Colonization
    Day 1–14
  3. Pinning
    Day 14–18
  4. Fruiting
    Day 18–25
  5. Harvest
    Day 25

Full specifications.

Every component is off-the-shelf and user-replaceable with a screwdriver. No proprietary parts. No planned obsolescence.

Sh-Room dimensions comparison showing compact footprint next to phone and toaster
Compact Footprint
Sh-Room engineering drawings with front, side, and top views
Engineering Drawings
All Sh-Room electronic components laid out
All Components

Dimensions

Exterior7.5" W x 6.5" D x 17" H
Interior5.5" W x 4.5" D x 15" H
Wall Thickness1" (25mm)
Weight3.5 lbs (1.6 kg)
Footprint48.75 sq in

Grow Chamber

Bag Capacity1x standard 5lb (6L)
Fit TypeZero-gap precision sleeve
Chamber RH85-95% (fruiting)
Target Temp75°F / 24°C
CO2 Target<1,000 ppm

Materials

Shell600D recycled polyester
InsulationCoconut coir R-3.5
LinerFood-grade TPU (compliance docs at production)
ColorSage Green #9CAF88
Recycled Content78%

Electronics

ControllerW1209 (0.1°C resolution)
Heater12W IR polyimide film
Fan40mm Noctua (<18dB)
Lighting3000K LED (>200 lux)
CameraESP32-CAM 2MP WiFi

Power & Safety

Input100-240V AC worldwide
Output12V DC, 2A (24W)
System Draw1.8A max all loads
Thermal Fuse72°C non-resettable
Wiring22AWG silicone 200°C

Usability

Assembly<2 min, no tools
Noise<18 dB(A)
Liner Wash50+ machine cycles
Parts100% user-replaceable
ConnectorsJST-XH keyed (anti-reverse)
Sh-Room Solo complete annotated specifications
The honest math

What growing actually costs.

We're not going to pretend home growing saves money with store-bought sterile bags. A sterile, ready-to-grow bag typically runs $30–40. Do it yourself with bulk substrate and it's a few dollars — but that's real work. Here's the real number, both ways.

How long are you growing?

How are you refilling?

Total spend — 14 grows

Sh-Room (refills only)
$490
Competitor kits
$420
Store-bought
$252

14 grows × 1 lb yield per flush (conservative). Gourmet species run $14–24/lb where sold fresh at all; $18/lb used here. Single-use competitor kits ~$30 (grow once, discard). Sh-Room column: ~$35 third-party sterile ready-to-grow bag per grow. The unit itself is not included; its price is not set.

Cost per pound

Sh-Room (refills only)$35.00/lb
Competitor kits$30.00/lb
Grocery store$18.00/lb

The honest verdict

At around $35 a sterile bag, growing costs more per pound than buying gourmet mushrooms — you don't do it to save money. You do it for mushrooms picked minutes ago, and for species (lion's mane, exotic oysters) you often can't buy fresh at any price.

Join the waitlist →

Estimates only. Retail mushroom prices sourced from USDA AMS specialty crop reports and verified at major grocery retailers. Competitor kit prices verified at North Spore, Back to the Roots, and Fungi Perfecti retail sites. Yield assumes one pound per flush (conservative biological efficiency estimate). Actual results vary.

First Flush Friday

We grow food. We also cover the whole fungal kingdom — honestly.

A weekly letter about growing mushrooms at home: species guides, harvest stories, the science at the edges of what fungi can do — and what tending something alive on its own schedule teaches you about being alive. Every Friday.

#009Science

When the Data Comes Home

The largest real-world study of legal psilocybin came from our own backyard — CU Anschutz, 2,363 sessions in Colorado and Oregon. Depression and anxiety scores roughly halved at two weeks, and more milligrams didn't buy more benefit. Here's the honest read, small print and all — including the suicidality signal no summary gets to skip.

Read issue →
#008Science

The Mushroom Left the Mushroom

Bioengineers just brewed psilocybin in bacteria — grams per liter, no fruiting body at all. What it means that a molecule fungi spent 100 million years perfecting now pours out of a fermenter, and what's gained and lost when the mushroom leaves the mushroom.

Read issue →
#007Engineering

The Incubator Is Silent. Your iPhone Does the Talking.

Why we're building the grow coach on Apple's on-device model instead of the cloud: your harvest call, your one thing to watch, and your daily reflection — computed on your phone, never leaving it.

Read issue →
Read the archive and subscribe
Planned, not built yet

The Sh-Room Ecosystem.

A mushroom isn't a solo organism. It's a network. This is the community we want to build around the Sh-Room. None of it is running yet; the unit is still a prototype.

Grow
Drop in a bag,
harvest in 25 days
Share
Clean, log,
pass to neighbor
Multiply
Chapters grow,
the network compounds
50+
wash cycles per liner (target)
78%
recycled materials (target)
100%
repairable parts (target)
Reusable
built for many grows (target)

Harvest Circle

Share the unit, not the cost

Planned: grow a cycle, sanitize, pass the unit to a neighbor, with a maintenance log, a clean-cycle protocol and a handoff checklist. Not running yet.

Spore Library

Community culture bank

Planned: a neighborhood library of gourmet cultures such as blue oyster, lion's mane and shiitake. Borrow one, grow it, return a culture from your healthiest flush. Not running yet.

Local Chapters

City by city, block by block

Planned to start in Boulder, CO: local groups that run their own Harvest Circles, culture library and monthly grow meetups. No chapters exist yet.

Grow Journals

Photos, data, and stories

Planned: share photos and notes from each grow and compare colonization speeds across species.

Harvest Exchange

Gift fresh, never sell

Planned: a place to gift surplus harvests to neighbors, labelled with species, harvest date and storage notes. Gifting only; no money changes hands. Not built yet.

Species Database

Community growing guides

Today: our own grow profiles on the Strains page (temperature, humidity, days to fruit, flavor). Planned: add growers' results once there are growers.

Tool Library Partners

Check out a Sh-Room like a book

Planned: ask tool libraries and makerspaces to lend Sh-Room units for a 30-day grow cycle. No library partnerships exist yet.

Impact Dashboard

Track what we grow together

Planned: a shared tally of food grown at home and packaging avoided, built from harvests growers choose to log. Not built yet.

The Mission

Rid the world of single use.

Single-use bottles. Single-use kits that end up in the trash after one cycle. Single-use products designed to be replaced. The Sh-Room is designed to be reused: the substrate refills, and the liner is designed to wash 50+ times. One unit, many grows.

Join the waitlist. We'll write when the Kickstarter launches.

From concept to reality

We got tired of noisy,
single-use grow kits.

Every home mushroom kit we tried made the same three compromises: it hummed like an appliance, it fell apart after a grow or two, and it cost more than the mushrooms it produced. So we built the one we wanted — quiet enough to forget it's there, made of parts you can replace yourself, and cheap to run for years.

Sh-Room is a small team, not a factory with a logo. We're not trying to sell you a subscription or a proprietary pod. We're trying to put a living thing on your counter and get out of the way.

Boulder, CO
Designed where we grow

Not a drop-ship relabel from a registered-agent address. Sh-Room is designed and engineered in Boulder, on the counters we actually use.

See how it works →
0 proprietary parts
Repairable with a screwdriver

W1209 controller, heating film, fan, LED strip, ESP32-CAM — every component is off-the-shelf and user-replaceable. Nothing to send back, nothing to landfill.

Full specs →
<18 dB
Quieter than a whisper

A Noctua-class fan on silicone-isolated grommets. Most home kits sound like a mini fridge; this one disappears into the room.

The grow science →
78% recycled
Built to be passed on

Insulated with upcycled coconut coir, machine-washable liner, and a Harvest Circle designed so one unit can serve a whole neighborhood.

The Harvest Circle →
How we're building this

Radically honest, including about the AI.

This entire website was designed and built by AI, working with our team. We think that's worth saying out loud rather than hiding — it's how a small team ships something this considered. Where you see a rendered concept image, it's labeled as one; the physical Sh-Room is a real prototype, and every backer update will carry real photos and real manufacturing progress, not renders dressed up as product shots.

The deal is simple: we tell you what's finished, what's in progress, and what could go wrong — before you back it, and every week after.

Before you back anything

The internet is full of near-identical “smart” gadget campaigns. Here’s how to tell us apart.

You should be skeptical of any first-time Kickstarter. So instead of asking you to trust us, here’s exactly how we’re built differently — each one you can go check yourself.

A faceless “product design team,” new account, no track record.

Designed in Boulder by a small named team that got tired of noisy, single-use kits.

See the proof →

Proprietary pods you can only refill from them.

Every part is off-the-shelf and replaceable with a screwdriver — no lock-in, ever.

See the proof →

Shipping “confirmed after the campaign,” refunds refused.

Flat shipping shown before you pledge; full refunds up to 30 days before ship.

See the proof →

Renders dressed as product photos, specs that shift in the comments.

Renders labeled as renders, honest spec ranges, real prototype photos as we go.

See the proof →

And honestly — don’t back us if:

  • You just want cheap mushrooms. Buy them at the store — growing costs about the same. You do this for freshness and species you can’t buy, not to save money. See the honest math.
  • You want zero attention. The Sh-Room holds conditions, but a grow still wants you to look at it, mist it, and harvest on time. That’s the point of it.
  • You need to refrigerate a warm room today. The base unit heats; two-way cooling is the Pro, a stretch goal. Check what fits your kitchen.

If none of that scared you off, you’re exactly who we built it for.

Frequently asked questions.