Is this kit worth it for a beginner?

Yes, if you want the fruiting chamber and airflow parts assembled for you. The instructions and pre-drilled tub remove most of the guesswork. Experienced growers can build the same setup cheaper from parts.

How many jars can the 30-quart tub hold?

Up to 18 half-pint jars, though 12 ship with the kit. Filling it means buying extra jars or substrate separately.

Does it include a heating mat or humidity controller?

No. The kit covers the tub, perlite, jars, hose, HEPA filter and timer. You supply heat and monitor humidity yourself.

What is the timer for?

It switches the airflow on and off, with up to 24 on/off settings a day. That lets you run short fresh-air exchanges several times daily.

How does it compare with Midwest's smaller kits?

It has the largest tub and jar capacity in the line, plus the filtered hose and timer. Smaller kits suit one or two jars; this one is built to scale.

What do I need to buy separately?

Spores or culture, extra jars if you want to fill the tub, and a thermometer or humidity gauge. A heat source helps in cool rooms.

Midwest Grow Kits Ultimate Mushroom Growing & Incubator Kit 30 Quart

Best price now

$129.00at TrimleafChecked 1 h ago

Prices are checked against each store and labelled with when.

Visit Trimleaf

Midwest Grow Kits Ultimate Mushroom Growing & Incubator Kit 30 Quart

Best price now

$129.00at TrimleafChecked 1 h ago

Prices are checked against each store and labelled with when.

Visit Trimleaf

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Price facts

Lowest price today: $129.00 at Trimleaf (checked Nov 10, 2026).

Our take on the Midwest Grow Kits Ultimate Mushroom Growing & Incubator Kit 30 Quart

The Ultimate kit is Midwest Grow Kits' largest all-in-one setup: a 30-quart clear tub with a silicone hose and HEPA filter for fresh-air exchange, a timer with 24 on/off settings a day, a gallon of horticultural perlite, and 12 half-pint substrate jars. It holds up to 18 jars, so it leaves room to expand beyond what ships in the box. It suits first-time growers who want the whole fruiting chamber assembled rather than sourced piece by piece, and it is a step up from the brand's smaller kits in capacity and airflow control. Compared with bare tub builds, you pay for convenience and filtration; experienced growers may find the included supplies modest for the footprint.

Best forFirst-time growers who want one complete kitSmall-space growers fruiting in a closet or spare roomPeople who want filtered fresh-air exchange without DIY plumbingGrowers who plan to scale up to 18 jars later

Pros

Complete fruiting chamber: tub, perlite, jars and airflow parts in one box
30-quart tub holds up to 18 jars, more than the 12 included
Silicone hose with HEPA filter gives filtered fresh-air exchange
Timer allows 24 on/off cycles a day for fine airflow tuning
Clear tub makes humidity and pinning easy to watch

Cons

Only 12 half-pint jars included, so filling the tub means buying more
Half-pint jars yield small flushes compared with quart jars
HEPA filter and hose add parts that need checking and eventual replacement
Perlite and substrate can be messy to set up and clean out
No heating or humidity controller included

Midwest Grow Kits Ultimate Mushroom Growing & Incubator Kit 30 Quart prices at every store

TrimleafNew
In stock
$129.00Checked 1 h ago
Visit Trimleaf

Midwest Grow Kits Ultimate Mushroom Growing & Incubator Kit 30 Quart price history

Lowest price we've seen: $129.00 on Nov 11 at Trimleaf. Tracked across 1 store since Nov 11.

What reviewers say

Owners of Midwest Grow Kits describe the kits as well organized and easy to follow, with the pre-drilled tub and airflow parts saving setup time. Feedback on the Ultimate kit is thinner, but buyers of the larger kits note the included jars run out before the tub is full and that humidity still needs monitoring by hand.

What people mention

SetupPraisedBuyers say the pre-drilled tub and included parts make assembly quick for beginners.
Jar capacityCriticisedOwners note the tub holds up to 18 jars but only 12 ship, so filling it means buying more.
AirflowPraisedThe timer and filtered hose are described as easy to set and adjust.
HumidityMixedGrowers say the perlite bed works but humidity still needs hand monitoring.
CleanupCriticisedPerlite and spent substrate are reported as messy to remove between runs.

Specifications

Container Capacity: 30 quarts
Maximum Jar Capacity: Up to 18 jars
Included Substrate Jars: 12 Ultimate 1⁄2 pint jars
Perlite Amount: 1 gallon (horticulture grade)
Timer Programming: 24 on/off settings per day
Air Filtration: Silicone hose with integrated HEPA filter

Questions and answers

Is this kit worth it for a beginner?: Yes, if you want the fruiting chamber and airflow parts assembled for you. The instructions and pre-drilled tub remove most of the guesswork. Experienced growers can build the same setup cheaper from parts.
How many jars can the 30-quart tub hold?: Up to 18 half-pint jars, though 12 ship with the kit. Filling it means buying extra jars or substrate separately.
Does it include a heating mat or humidity controller?: No. The kit covers the tub, perlite, jars, hose, HEPA filter and timer. You supply heat and monitor humidity yourself.
What is the timer for?: It switches the airflow on and off, with up to 24 on/off settings a day. That lets you run short fresh-air exchanges several times daily.
How does it compare with Midwest's smaller kits?: It has the largest tub and jar capacity in the line, plus the filtered hose and timer. Smaller kits suit one or two jars; this one is built to scale.
What do I need to buy separately?: Spores or culture, extra jars if you want to fill the tub, and a thermometer or humidity gauge. A heat source helps in cool rooms.
Where is the Midwest Grow Kits Ultimate Mushroom Growing & Incubator Kit 30 Quart cheapest?: At Trimleaf, for $129.00, as of our latest check.