Pacific Substrates

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Pacific Substrates was founded in Oakland in 2020 to make mushroom cultivation reliable and accessible. They meet the needs of all levels of growers by making commercial-quality materials available to those with smaller budgets. Using efficient procedures, custom blends, and vigorous cultures, Pacific Substrates brings superior products to the market at competitive prices.

Packages of Goonie Grains mushroom spawn next to packages of Paddy Poo mushroom compost.

Pacific Substrates Mushroom Growing Substrate

MSRP Price: $24.98 – $299.70

Goonie grains grain spawn bag with self-healing injection port installed

Self-Healing Injection Ports

MSRP Price: $22.50

FEATURED PRODUCTS

The Max Yield Bin is a mushroom growing container made up of a black bin with clear lid

Max Yield Bins™ Accessories

Sungrower® - Duraweave and Duramax Greenhouse Poly - 8 and 12 Mil

Outside view of Sungrower Supply Blackout poly on a greenhouse frame

Ginegar Plastics - Pre-Cut Non-Woven Poly: 6 Mil - Blackout

The Max Yield Bin clear lid has ventilation holes that house the filters.

Max Yield Bins™

A windowed display package for the all-in-one grow kit with substrate and grain mixed together.

MushroomSupplies Grow Kit in a Bag

Grain Spawn is perfect for colonizing many mushroom species.

MushroomSupplies Grain Spawn Bag

Premium Manure, Vermiculite, Coco Coir, and Gypsum make up this awesome mushroom substrate.

MushroomSupplies Growing Substrate

G-Lite® Fabric Pots

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