Growing gourmet and medical mushrooms

Paul Stamets. Growing gourmet and medical mushrooms. - Ten Speed Press, 2000


1. Mushrooms, Civilization and History

2. The Role of Mushrooms in Nature

3.Selecting a Candidate for Cultivation

4. Natural Culture: Creating Mycological Landscapes

5. The Stametsian Model: Permaculture with a Mycological Twist

6. Materials fo rFormulating a Fruiting Substrate

7. Biological Efficiency: An Expression of Yield

8. Home-made vs. Commercial Spawn

9. The Mushroom Life Cycle

10. The Six Vectors of Contamination

11. Mind and Methods for Mushroom Culture

12. Culturing Mushroom Mycelium on Agar Media

13. The Stock Culture Library: A Genetic Bank of Mushroom Strains

14. Evaluating a Mushroom Strain

15. Generating Grain Spawn

16. Creating Sawdust Spawn

17. Growing Gourmet Mushrooms on Enriched Sawdust

18. Cultivating Gourmet Mushrooms on Agricultural Waste Products

19. Cropping Containers

20. Casing: A Topsoil Promoting Mushroom Formation

21. Growth Parameters for Gourmet and Medicinal Mushroom Species

Spawn Run: Colonizing the Substrate

Primordia Formation: The Initiation Strategy

Fruitbody (Mushroom) Development

The Gilled Mushrooms

The Polypore Mushrooms of the Genera Ganoderma, Grifola and Polyporus

The Lion’s Mane of the Genus Hericium

The Wood Ears of the Genus Auricularia

The Morels: Land-Fish Mushrooms of the Genus Morchella

The Morel Life Cycle

22. Maximizing the Substrate’s Potential through Species Sequencing

23. Harvesting, Storing, and Packaging the Crop for Market

24. Mushroom Recipes: Enjoying the Fruits of Your Labors

25. Cultivation problems & Their Solutions: A Troubleshoting guide


I. Description of Environment for a Mushroom Farm

II. Designing and Building A Spawn Laboratory

III. The Growing Room: An Environment for Mushroom Formation & Development

IV. Resource Directory

V. Analyses of Basic Materials Used in Substrate Preparation

VI. Data Conversion Tables






Suggested Agar Culture Media:



1st, 2nd & 3rd Generation Spawn Media:
Grain-to-grain expansions. The final spawn
medium can be another generation of grain
spawn, or alternatively sawdust. The sawdust
spawn can be used to inoculate supplemented
sawdust (i.e. sawdustlchipsfbrafl) or plugs for
outdoor cultivation on stumps or partially buried, vertically positioned, large diameter
hardwood logs. Considering the long incuba-

tion period, cultivators are well advised to
weigh the advantages of creating another generation of sawdust spawn. The advantage of the
grain spawn-inoculated bags is that they pro-

duce several weeks earlier than do the
sawdust-inoculated blocks. However, the quality of colonization is better provided by spawn
made of sawdust than from grain.
Substrates for Fruiting: Supplemented hard-

wood sawdust, particularly oak, poplar,

cottonwood, elm, willow and alder. Alder and
poplar stumps are less likely to support outdoor


Figure 338. Maitake at the perfect stage for harvest—when the leaflets fully extend. When Maitake
spoils, the tissue from which these leaflets arise becomes soft to the touch and emits a foul odor from
the proliferation of bacteria.

fruitings, given the hold competitors like

yields vary substantially bePleurotus ostreatus and allies have on that niche. For indoor cultivation,
growing on conifers are being
tween various wood types. Oak is generally preferred, although strains
air exchange.
Recommended Containers for Fruiting: Polypropylene bags with filter patches for
Polypropylene bottles and buckets have also been used.
enriched hardwood sawdust.
Yield Potentials: 1/2 to 2lbs. mushroom per 5-7 lbs. of sterilized,
fruitbody develops to prevent
Harvest Hints: Relative humidity should be carefully lowered as the
The thick base should be
bacterial blotch. Over-watering can quickly cause the fruitbodies to abort.
and then refrigerated, have an excut to remove substrate debris. Mushrooms wrapped in rice paper,
tended shelf life up to two weeks at 35° F. (1-2.° C.)
market. High quality
Form of Product Sold to Market: Fresh and dried mushrooms for the gourmet
is currently selling a
tablets are being marketed in the United States by Maitake, Inc. Fungi
fruitbodies of this mushroom.
tea ("Stamets Olympic Rainforest Mushroom Tea") containing dried
section on page 495.) Fresh
(For the addresses of these two companies, please refer to the Resource
food markets of Japan. In
Maitake has been inexpensive and commonly available throughout the

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