They are reusable, highly durable and have a filtration rate of 99. 97% that means they will filter down to. 3 microns. These synthetic filters discs fit precisely on any wide mouth 90mm canning jar which are commonly used by today's cultivators. Usage of these discs allows a fresh, constant air exchange while preventing the entrance of unwanted contaminates.

Superior to Tyvek filter discs. They come in 90mm sizes but they are all a true 1/16 of an inch thick! This equals to roughly 13 sheets of filter paper. You are looking at a lot of 12 synthetic filter discs used for mushroom cultivation. These discs are widely used by commercial producers, as well as those involved in smaller home cultivation.

Available in wide mouth and regular mouth sizes. Use them in place of jar lids, or just drill a hole in the lid, and place the discs under the lid. Our synthetic filter discs can be used within a pressure cooker, steam sterilizer or autoclave. Able to be used in sterilizers and autoclaves. Reusable.

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12 Gray Rubber Bottle Stoppers Self Healing Injection Ports for Mason Jar Lids

These stoppers can be used to make self-healing injection ports in Mason jar lids or medicine bottles. Simply use a 7/16 to 1/2 inch drill bit and drill a hole in metal or plastic jar lid and the stoppers pop right in place. Reusable. Thanks for checking us out!! Able to be used in sterilizers and autoclaves.

Mainly used for mushroom growing and liquid culture production. They fit 13 mm 05118'' diameter opening. Self healing. They are 3/4" across the top, and 5/16" top to bottom. Use with hypodermic needles to inject cultures, therefore never needing to remove the lids on your culture jars. Up for sale here is a lot of 12 rubber bottle stoppers.

More quantities available.


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Gypsum- 1 lb.

It increases calcium and sulfite levels in Soft water, increases acidity, and helps to settle proteins during the boil. More quantities available. 1 teaspoon of gypsum for 5 gallons. Able to be used in sterilizers and autoclaves. Adds hardness to soft water when Brewing. Self healing. Reusable. When using distilled water for Brewing, gypsum adds hardness to the water.

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48 gray rubber bottle stoppers, self healing injection ports for mason jar lids

Adds hardness to soft water when Brewing. They fit 13 mm 05118'' diameter opening. Self healing. More quantities available. 1 teaspoon of gypsum for 5 gallons. More quantities available. Simply use a 7/16 to 1/2 inch drill bit and drill a hole in metal or plastic jar lid and the stoppers pop right in place. Use with hypodermic needles to inject cultures, therefore eliminating the need to remove the lids on your culture jars.

Reusable. Reusable. They are 3/4" across the top, and 5/16" top to bottom. When using distilled water for Brewing, gypsum adds hardness to the water. Able to be used in sterilizers and autoclaves. Mainly used for mushroom growing and liquid culture production. Up for sale here are a lot of 48 gray rubber bottle stoppers.

These stoppers can be used to make self-healing injection ports in Mason jar lids or medicine bottles. Self healing. Able to be used in sterilizers and autoclaves.


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Permatex 81160 High-Temp Red RTV Silicone Gasket, 3 oz

Able to be used in sterilizers and autoclaves. Permatex high-temp red rtv silicone Gasket Maker is formulated for high temperature applications or heavy-duty use such as towing. It replaces almost any cut gasket by making reliable 'formed-in-place' gaskets that resist cracking, shrinking and migrating caused by thermal cycling.

Self healing. Makes reliable 'formed-in-place' gaskets that resist cracking, shrinking and migrating. A first generation 1970-1980 gasket maker, it is OEM specified. Able to be used in sterilizers and autoclaves. Temperature range of -65F to 650F intermittent. Self healing. Resists auto and shop fluids, with a temperature range of -65 degrees fahrenheit to 650 degrees fahrenheit intermittent.

More quantities available. When using distilled water for Brewing, gypsum adds hardness to the water. Coats pre-cut gaskets to increase reliability. Adds hardness to soft water when Brewing. Permatex always has the right gasket maker for your application. Reusable.


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12 synthetic filter discs 70mm "regular mouth" size

They come in 70mm sizes but they are all a true 1/16 of an inch thick! This equals to roughly 13 sheets of filter paper. Able to be used in sterilizers and autoclaves. Makes reliable 'formed-in-place' gaskets that resist cracking, shrinking and migrating. Able to be used in sterilizers and autoclaves. Self healing.

These discs are widely used by commercial producers, as well as those involved in smaller home cultivation. Reusable. Usage of these discs allows a fresh, constant air exchange while preventing the entrance of unwanted contaminates. Adds hardness to soft water when Brewing. Replaces almost any cut gasket, and coats pre-cut gaskets to increase reliability.

They are reusable, highly durable and have a filtration rate of 99. 97% that means they will filter down to. 3 microns. More quantities available. Formulated for hi-temp applications, or heavy-duty use. When using distilled water for Brewing, gypsum adds hardness to the water. Self healing.


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Fertilizer - Gypsum - 5 Pounds - Calcium Sulfate Dihydrate - CaSO4*2H2O

More quantities available. 1 teaspoon of gypsum for 5 gallons. Able to be used in sterilizers and autoclaves. Suggested applications: Valve covers, timing covers, water pumps, thermostat housings, oil pans, transmission pans. Able to be used in sterilizers and autoclaves. Reusable. Self healing. Replaces almost any cut gasket, and coats pre-cut gaskets to increase reliability.

More quantities available. Reusable. Available in wide mouth and regular mouth sizes. Reusable. Adds hardness to soft water when Brewing. Able to be used in sterilizers and autoclaves. Self healing. Temperature range of -65F to 650F intermittent. Very fine powder. Used as a fertilizer, soil pH reducer, soil conditioner, and many other uses.

Also known as Gypsum. Not for sale in California as a fertilizer. Superior to Tyvek filter discs.


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Magic Mushroom Grower's Guide Simple Steps to Bulk Cultivation

Adds hardness to soft water when Brewing. Formulated for hi-temp applications, or heavy-duty use. More quantities available. Able to be used in sterilizers and autoclaves. This book provides hundreds of photos and diagrams to help you understand the process—also offering helpful resources for sourcing equipment and materials.

Temperature range of -65F to 650F intermittent. This book is a comprehensive manual on the bulk cultivation of psilocybin mushrooms, using do-it-yourself equipment made of common materials wherever possible. Very fine powder. 1 teaspoon of gypsum for 5 gallons. When using distilled water for Brewing, gypsum adds hardness to the water.

It walks you through every step of the procedure, essential information, providing easy-to-follow instructions, and useful advice about growing these magical fungi using a simple and economical methodology. Advanced procedures are also presented, allowing for rapid progression from the basics to more sophisticated methods of cloning and growing with agar.

Able to be used in sterilizers and autoclaves. Makes reliable 'formed-in-place' gaskets that resist cracking, shrinking and migrating. Reusable. Suggested applications: Valve covers, timing covers, oil pans, water pumps, thermostat housings, transmission pans.


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25 Lb Bag Each - Rye Berries

Reusable. 1 teaspoon of gypsum for 5 gallons. Able to be used in sterilizers and autoclaves. Bag of 25 pounds. When using distilled water for Brewing, gypsum adds hardness to the water. Fertilizer Feed Grade. Makes reliable 'formed-in-place' gaskets that resist cracking, shrinking and migrating. Self healing. Rye can be used in soups, stews, breads, stuffings as a breakfast porridge, substituted for rice and added to pilafs and casseroles.

Very fine powder. Suggested applications: Valve covers, water pumps, thermostat housings, timing covers, oil pans, transmission pans. Able to be used in sterilizers and autoclaves. Reusable. Used as a fertilizer, soil conditioner, soil pH reducer, and many other uses. Also known as Gypsum. Not for sale in California as a fertilizer.

Temperature range of -65F to 650F intermittent. Can be substituted for rice. Available in wide mouth and regular mouth sizes. More quantities available.


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Presto 01781 23-Quart Pressure Canner and Cooker

Adds hardness to soft water when Brewing. When using distilled water for Brewing, gypsum adds hardness to the water. This precise measurement is especially important at higher altitudes. Deluxe pressure dial gauge registers the complete range of processing pressures. Bag of 25 pounds. 1 teaspoon of gypsum for 5 gallons.

. Temperature range of -65F to 650F intermittent. Formulated for hi-temp applications, or heavy-duty use. Works on regular and smooth-top ranges. Able to be used in sterilizers and autoclaves. Available in wide mouth and regular mouth sizes. Self healing. Liquid capacity: 23 quarts 21. 8 liters. Very fine powder. Superior to Tyvek filter discs.

More quantities available. Pressure canning is the only method recommended safe by the U. S. Reusable.


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6 synthetic filter discs 90mm "Wide Mouth" size

Use them in place of jar lids, or just drill a hole in the lid, and place the discs under the lid. Our synthetic filter discs can be used within a pressure cooker, steam sterilizer or autoclave. They are reusable, highly durable and have a filtration rate of 99. 97% that means they will filter down to. 3 microns.

Able to be used in sterilizers and autoclaves. Available in wide mouth and regular mouth sizes. When using distilled water for Brewing, gypsum adds hardness to the water. These synthetic filters discs fit precisely on any wide mouth 90mm canning jar which are commonly used by today's cultivators. 1 teaspoon of gypsum for 5 gallons.

Reusable. Can be substituted for rice. Superior to Tyvek filter discs. Similar texture to Wheat Berries. Deluxe pressure dial gauge registers the complete range of processing pressures; This precise measurement is especially important at higher altitudes. More quantities available. Reusable. Very fine powder.


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