
A 15 gauge piercing needle is used to piece the polypropylene tubing that is used for making cylindrical Oyster mushroom grow bags. After packing prepared straw substrate and Oyster mushroom spawn into 330mm polypropylene or 355mm polyethylene tubing, wipe the outside of the grow bag with alcohol, then remove the chipping needle from the packaging and piece breathing holes.
Please note: Our facility is a working factory and not a retail outlet. Orders are ideally first placed in the shop and if you opt to collect, we will notify you that your order is ready.