Pasteurization Bag

Make Straw Pasteurization Easier — and Much Less Messy

If you've ever tried to pull a giant pile of hot, wet straw out of a pot, you already understand why this bag exists. 😂

Our reusable mesh pasteurization bag makes preparing straw for oyster mushroom cultivation easier, cleaner, and more manageable.

Simply fill the bag with chopped straw, submerge it in hot water, pasteurize, then lift the entire bag out and allow the straw to drain. No fishing handfuls of soggy straw out of the pot.

🍄 Perfect for Oyster Mushroom Cultivation

Use your pasteurization bag to prepare straw for:

• 5-gallon oyster mushroom buckets
• Other suitable oyster mushroom containers
• Small-scale mushroom cultivation
• Home mushroom growing projects

One bag holds approximately enough straw for one to two 5-gallon buckets, depending on how tightly the straw is packed.

How to Pasteurize Straw

1. Chop your straw into manageable pieces.
2. Fill the mesh bag with straw.
3. Heat water to approximately 160–170°F.
4. Completely submerge the bag of straw.
5. Maintain the temperature for approximately 1–1½ hours.
6. Carefully remove the bag and allow the straw to drain and cool completely.
7. Once cooled, mix or layer the straw with your oyster mushroom spawn.
8. Fill your prepared growing container and allow it to colonize.

Do not add mushroom spawn while the straw is still hot. Allow it to cool completely before inoculating.

Build a Simple Oyster Bucket Setup

Pair your pasteurization bag with:

• Oyster mushroom spawn
• Micropore tape
• A clean 5-gallon food-grade bucket with fruiting holes

It's a simple, inexpensive way to turn straw into fresh oyster mushrooms at home.

What's Included

1 reusable mesh pasteurization bag

Straw shown in product photos is for demonstration purposes only and is not included.

Shipping Note

Add-on item: Ships for $7 when purchased alone or free on orders over $18.