How to Make Straw and Sawdust Bulk Substrate

In this video I show you how to make straw and sawdust bulk substrate. Oysters mushrooms love it!

Supplies List
10 cups of Sawdust
10 cups of Straw
1 Tablespoon of Gypsum
5 gallon bucket
Pressure cooker
5 pound Bulk Substrate Bag

0:00 Intro
1:05 Soak straw, sawdust, and gypsum in a 5 gallon bucket for 24 hours.
2:06 After a 24 hour soak, drain the straw and sawdust and mix together.
2:47 Then, put mixture in a 5 pound bulk substrate bag with a filter.
3:15 Sterilize bags at 15 PSI for 2 hours
4:26 Let the substrate cool down for 24 hours and then it is ready to use.

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