They are reusable, highly durable and have a filtration rate of 99. 97% that means they will filter down to. 3 microns. 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. Superior to Tyvek filter discs. You are looking at a lot of 6 synthetic filter discs used for mushroom cultivation.

These discs are widely used by commercial producers, as well as those involved in smaller home cultivation. These synthetic filters discs fit precisely on any wide mouth 90mm canning jar which are commonly used by today's cultivators. 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. Reusable. Usage of these discs allows a fresh, constant air exchange while preventing the entrance of unwanted contaminates. Able to be used in sterilizers and autoclaves.

Gypsum- 1 lb.

Adds hardness to soft water when Brewing. When using distilled water for Brewing, gypsum adds hardness to the water. 1 teaspoon of gypsum for 5 gallons. It increases calcium and sulfite levels in Soft water, increases acidity, and helps to settle proteins during the boil.

Rye Berries, 10 Pound Box

1 teaspoon of gypsum for 5 gallons. Pack of 10 pounds. Rye berries have a firm, chewy texture and mild walnut-like flavor. When using distilled water for Brewing, gypsum adds hardness to the water. Can be substituted for rice. Highly nutritious, rye berries are high in dietary fiber, amino acids, magnesium, selenium, phosphorus and B vitamins.

Rye berries are the whole grain form of rye, with only the hull removed. Adds hardness to soft water when Brewing. Similar texture to Wheat Berries.

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

Can be substituted for rice. When using distilled water for Brewing, gypsum adds hardness to the water. Extended warranties, bi-metal alloys and high-tech plastics, engine sensors and new component materials such as aluminum, have created the need for superior RTV silicone gasket makers in both OEM production and service applications.

Adds hardness to soft water when Brewing. Resists auto and shop fluids, with a temperature range of -65 degrees fahrenheit to 650 degrees fahrenheit intermittent. 1 teaspoon of gypsum for 5 gallons. It replaces almost any cut gasket by making reliable 'formed-in-place' gaskets that resist cracking, shrinking and migrating caused by thermal cycling.

Temperature range of -65F to 650F intermittent. Pack of 10 pounds. Permatex offers significant performance advantages which include outstanding oil resistance, excellent torque retention and hi-temp, sensor-safe properties. Coats pre-cut gaskets to increase reliability. Permatex high-temp red rtv silicone Gasket Maker is formulated for high temperature applications or heavy-duty use such as towing.

Permatex always has the right gasket maker for your application. Makes reliable 'formed-in-place' gaskets that resist cracking, shrinking and migrating.

SEOH Alcohol Lamp/Burner Flint Glass 120 Ml

Formulated for hi-temp applications, or heavy-duty use. Sold As Each. Makes reliable 'formed-in-place' gaskets that resist cracking, shrinking and migrating. For fuel95% ethanol, denatured. Material Glass. Can be substituted for rice. 1 teaspoon of gypsum for 5 gallons. Cap Metal. Metal cap. Temperature range of -65F to 650F intermittent.

Similar texture to Wheat Berries. Hexagonal shape of sides resists tilting on side. To use ethanol 95%denatured ethyl alcohol only. Replaces almost any cut gasket, and coats pre-cut gaskets to increase reliability. Pack of 10 pounds. Can be used straight or tilted, liquid will not spill. Alcohol lamp / burner flint glass, 120 ml capacity.

Suggested applications: Valve covers, timing covers, thermostat housings, oil pans, water pumps, transmission pans. Capacity ml 120 When using distilled water for Brewing, gypsum adds hardness to the water. Adds hardness to soft water when Brewing.

PYREX 500mL Round Media Storage Bottles, with GL45 Screw Cap, Ea

Formulated for hi-temp applications, or heavy-duty use. Material Glass. Suggested applications: Valve covers, thermostat housings, oil pans, water pumps, timing covers, transmission pans. Capacity ml 120 Cap Metal. These heavy duty 500ml pyreX round bottles can be used for storage as well as mixing and sampling.

Makes reliable 'formed-in-place' gaskets that resist cracking, shrinking and migrating. Similar texture to Wheat Berries. For fuel95% ethanol, denatured. 1 teaspoon of gypsum for 5 gallons. Capacity is 500ml. Outer diameter is 86mm. Graduation interval is 100ml. Material is Borosilicate Glass. Replaces almost any cut gasket, and coats pre-cut gaskets to increase reliability.

They include a linerless, one-piece autoclavable orange polypropylene plug seal GL45 threaded cap with a drip-free pouring ring. Adds hardness to soft water when Brewing. Can be substituted for rice. Dual Graduations. Temperature range of -65F to 650F intermittent.

Presto 01781 23-Quart Pressure Canner and Cooker

Cap Metal. Doubles as a boiling water canner for preserving fruits, jams, jellies, pickles and salsa in pint and half pint jars. Works on regular and smooth-top ranges. Capacity is 500ml. Outer diameter is 86mm. Graduation interval is 100ml. Material is Borosilicate Glass. Adds hardness to soft water when Brewing.

Constructed of warp-resistant, heavy-gauge aluminum for fast, even heating. Pressure canning is the only method recommended safe by the U. S. Replaces almost any cut gasket, and coats pre-cut gaskets to increase reliability. Air vent/cover lock allows pressure to build up only when the cover is closed properly and prevents the cover from opening until pressure is safely reduced.

Formulated for hi-temp applications, or heavy-duty use. Temperature range of -65F to 650F intermittent. 1 teaspoon of gypsum for 5 gallons. Sold As Each. Pack of 10 pounds. Department of Agriculture for low-acid foods.

OESS Reusable Inoculating Loop with 50pcs 10uL Nichrome Needle Tips Inoculation Loop for Bacterial Tissue Culture

Replaces almost any cut gasket, and coats pre-cut gaskets to increase reliability. The only method recommended safe by the US Department of Agriculture for canning vegetables, meats, poultry, and seafood. Doubles as a boiling-water canner for preserving fruits, pickles, jams, jellies, and salsa; Handy as a large capacity pressure cooker.

Constructed of warp-resistant heavy-gauge aluminum for fast, even heating; Works on regular and smooth-top ranges; Extended 12-year limited warranty. Sold as 1pcs inoculation need holder and 50pcs 10ul inoculating tips. The inoculation holder is made of bakelite handle and nickel plated brass rod, the inoculating loop is made of durable nichrome.

Vacuum-gas plasma surface treated, allowing liquid or solid culture medium to attach. These inoculating loops are very handy for transferring to and from test tube cultures in the lab, they are really useful tools in inoculating experiment. Sold As Each. Pack of 10 pounds. Dual Graduations. Formulated for hi-temp applications, or heavy-duty use.

Can be substituted for rice. 1 teaspoon of gypsum for 5 gallons.

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

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. Dual Graduations. These stoppers can be used to make self-healing injection ports in Mason jar lids or medicine bottles. Package include:1pcs 8. 8'22cm inoculation rod and 50pcs 10ul inoculating tips3mm diameter twisted wire loop and 55mm long.

Replaces almost any cut gasket, and coats pre-cut gaskets to increase reliability. Deluxe pressure dial gauge registers the complete range of processing pressures; This precise measurement is especially important at higher altitudes. Makes reliable 'formed-in-place' gaskets that resist cracking, shrinking and migrating.

For fuel95% ethanol, denatured. Cap Metal. Extra-large size is great for big canning jobs; Includes canning/cooking rack and complete 76-page instruction and recipe book. Up for sale here are a lot of 48 gray rubber bottle stoppers. Can be substituted for rice. The only method recommended safe by the US Department of Agriculture for canning vegetables, meats, poultry, and seafood.

Doubles as a boiling-water canner for preserving fruits, jams, pickles, jellies, and salsa; Handy as a large capacity pressure cooker. Constructed of warp-resistant heavy-gauge aluminum for fast, even heating; Works on regular and smooth-top ranges; Extended 12-year limited warranty.

20 Pack Sterile Plastic Petri Dishes, 100mm Dia x 15mm Deep, with Lid

Capacity is 500ml. Outer diameter is 86mm. Graduation interval is 100ml. Material is Borosilicate Glass. Similar texture to Wheat Berries. Sold As Each. Extra-large size is great for big canning jobs; Includes canning/cooking rack and complete 76-page instruction and recipe book. Easily manageable while being long enough to dissipate lots of heat, and good for hours of back-to-back platinge.

The inoculation holder is made of bakelite handle and nickel plated brass rod, the inoculating loop is made of durable nichrome, can be flame sterilizing. The actual diameter of these plates is 90mm. Sterilized. Reusable. Replaces almost any cut gasket, and coats pre-cut gaskets to increase reliability. 1 teaspoon of gypsum for 5 gallons.

Formulated for hi-temp applications, or heavy-duty use. More quantities available. For fuel95% ethanol, denatured. Makes reliable 'formed-in-place' gaskets that resist cracking, shrinking and migrating. Heavy duty - Industrial Grade Polystyrene. The only method recommended safe by the US Department of Agriculture for canning vegetables, meats, poultry, and seafood.

Organic Rye Berries by Food to Live Whole Wheat Grain, Non-GMO, Kosher, Raw, Bulk Seeds, Product of the USA — 5 Pounds

Heavy duty - Industrial Grade Polystyrene. The only method recommended safe by the US Department of Agriculture for canning vegetables, poultry, meats, and seafood. Doubles as a boiling-water canner for preserving fruits, jellies, jams, pickles, and salsa; Handy as a large capacity pressure cooker. Constructed of warp-resistant heavy-gauge aluminum for fast, even heating; Works on regular and smooth-top ranges; Extended 12-year limited warranty.

Can be substituted for rice. Similar texture to Wheat Berries. You can also grind them into a highly nutritious meal. Replaces almost any cut gasket, and coats pre-cut gaskets to increase reliability. This grain only has about 4g of fats per cup, which is a great ratio for a whole grain. The grip portion of the handle is pliable and soft, highly durable and solid product without being overly heavy and a chore to use.

Includes Lids. When using distilled water for Brewing, gypsum adds hardness to the water. Extra-large size is great for big canning jobs; Includes canning/cooking rack and complete 76-page instruction and recipe book. Reusable. The majority of organic rye berries and other rye products available on the market today come from Eastern Europe or China.