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Erlenmeyer flasks

An Erlenmeyer flask, also known as a conical flask or titration flask, is a type of laboratory flask which features a flat bottom, a conical body, and a cylindrical neck.

Use In Homebrewing
Erlenmeyer flasks are primarily used in homebrewing as a vessel for yeast starters & culturing. Large populations of active yeast help ensure a healthy fermentation, free of off flavors. All of our flasks are made from borosilicate type glass which is nice because they can be transferred directly from heat to ice and not crack like normal glass.

9 products

  • Erlenmeyer Flask - 5000 ml Erlenmeyer Flask - 5000 ml

    Erlenmeyer Flask - 5000 mL

    89 reviews

    This Erlenmyer flask is huge, coming in at 5000 ml (5L!), making it the ideal vessel to make a large yeast starter for a 10+ gallon batch. The best brewers make large yeast starters to get their beer fermenting fast, and most of them do so in an Erlenmeyer flask. Large populations of active yeast help ensure flavorful beer free of off flavors. Because this flask is made from borosilicate glass you can move it from a boil into a cold water bath for cooling. This means you can do the whole process in one container, keeping it simple and helping to reduce the risk of contamination when transferring from one container to another. Double Boiler Method It is important for your safety to heat water in the flask with a heat source that distributes heat evenly. Morebeer! recommends using the "double boiler method." This process involves using a boiling water bath on the outside of the flask to heat up the water inside the flask. All you need is a kettle 3 gallons or larger. This process is much safer and efficient. If the flask should break or boil over, your kettle will be there to collect the contents, thus keeping your stove clean and keeping you safe. Safety First: Please take us up on a great deal - save $14.95 when you purchase a 5000ml flask and our BE300 5 gallon stainless steel kettle at the same time. Use Promo code SAFETY1 at checkout. Features Massive 5L (5000ML) Capacity Made from Borosilicate Glass (also known as Pyrex) Fantastic price for a flask of this size Produced for MoreBeer!   Why make a yeast starter? (from our FAQ) We build starters for 3 main reasons. First, to ensure yeast health. By making a starter 1-3 days in advance, you ensure that your yeast is healthy and strong and ready to do its job. Second, to create more yeast. By making the starter you will increase the cell count of the yeast, giving you a better chance of keeping bacteria's and wild yeasts from fermenting your wort. Third, if you are making high gravity beers. If you are making a high gravity beer (1.060+) you will need more yeast to start the ferment faster. High gravity beers will also finish more completely when you pitch ample quantities of yeast. In the lab world, these flasks are known as "Student Grade". Student grade flasks may have small scratches and air bubbles. A great flask for making yeast starters! For a stopper we recommend a size #8-9 (FE498 or FE499). Kegland Part Number: KL04008

    $49.99

  • Erlenmeyer Flask - 2000 ml

    Erlenmeyer Flask - 2000 mL

    65 reviews

    These Erlenmeyer flasks help the best brewers to make large yeast starters to get their beer fermenting fast. Large populations of active yeast help ensure a healthy fermentation, free of off flavors.  One of our favorite things about the Erlenmeyer flasks is that you can boil your starters directly in them! Our large 2000ml Erlenmyer Flask is the ideal vessel to make a large yeast starter for 5 gallon lagers and high gravity brews. Because it is made from borosilicate glass you can move it from a boil on your gas stove into a cold water bath for cooling, without the risk of cracking. (We do not recommend the use of an electric element. If this cannot be avoided, we recommend using a larger pot as a hot water bath on the stove.) This means you can do the whole process in one container, keeping it simple and helping to reduce the risk of contamination when transferring from one container to another. Recommended Process for Use of Flask: Double Boiler Method It is important for your safety to heat water in the flask with a heat source that distributes heat evenly. Our manufacturer has confirmed that direct heat to the glass can break down its integrity and break if the heat source doesn't distribute evenly. Morebeer! recommends using the "double boiler method."  This process involves using a boiling water bath on the outside of the flask to heat up the water inside the flask.  All you need is a kettle 3 gallons or larger.  This process is much safer and efficient. If the flask should break or boil over, your kettle will be there to collect the contents, thus keeping your stove clean and keeping you away from potential harm.   Features Massive 2L (2000mL) Capacity Made from Borosilicate Glass Fantastic price for a flask of this size Produced for MoreBeer! 6.5" base 2.5" top 10.75"H   Why make a yeast starter? (from our FAQ) We build starters for 3 main reasons. First, to ensure yeast health. By making a starter 1-3 days in advance, you ensure that your yeast is healthy and strong and ready to do its job. Second, to create more yeast. By making the starter you will increase the cell count of the yeast, giving you a better chance of keeping bacteria's and wild yeasts from fermenting your wort. Third, if you are making high gravity beers. If you are making a high gravity beer (1.060+) you will need more yeast to start the ferment faster. High gravity beers will also finish more completely when you pitch ample quantities of yeast. In the lab world, these flasks are known as "Student Grade". A great flask for making yeast starters!(Student grade is not the highest grade flasks and will have minor defects) Kegland Part Number: KL03988

    $19.99

  • Erlenmeyer Flask - 3000 ml

    Erlenmeyer Flask - 3000 mL

    17 reviews

    The best brewers make large yeast starters to get their beer fermenting fast. Large populations of active yeast help ensure flavorful beer free of off flavors. Our large 3000ml Erlenmyer Flask is a great vessel to make a large yeast starter for 5 gallon lagers and high gravity brews. Because it is made from borosilicate glass you can move it from a boil on your gas stove into a cold water bath for cooling, without the risk of cracking. (We do not recommend the use of an electric element. If this cannot be avoided, we recommend using a larger pot as a hot water bath on the stove.) This means you can do the whole process in one container, keeping it simple and helping to reduce the risk of contamination when transferring from one container to another. Recommended Process for Use of Flask: Double Boiler Method It is important for your safety to heat water in the flask with a heat source that distributes heat evenly. Our manufacturer has confirmed that direct heat to the glass can break down its integrity and break if the heat source doesn't distribute evenly. Morebeer! recommends using the "double boiler method."  This process involves using a boiling water bath on the outside of the flask to heat up the water inside the flask.  All you need is a kettle 3 gallons or larger.  This process is much safer and efficient. If the flask should break or boil over, your kettle will be there to collect the contents, thus keeping your stove clean and keeping you away from potential harm.   Features Massive 3L (3000mL) Capacity Made from Borosilicate Glass Fantastic price for a flask of this size Produced for MoreBeer! " base " top "H   Why make a yeast starter? (from our FAQ) We build starters for 3 main reasons. First, to ensure yeast health. By making a starter 1-3 days in advance, you ensure that your yeast is healthy and strong and ready to do its job. Second, to create more yeast. By making the starter you will increase the cell count of the yeast, giving you a better chance of keeping bacteria's and wild yeasts from fermenting your wort. Third, if you are making high gravity beers. If you are making a high gravity beer (1.060+) you will need more yeast to start the ferment faster. High gravity beers will also finish more completely when you pitch ample quantities of yeast. In the lab world, these flasks are known as "Student Grade". A great flask for making yeast starters!(Student grade is not the highest grade flasks and will have minor defects) Kegland Part Number: KL03995

    $29.99

  • Erlenmeyer Flask - 1000 ml

    Erlenmeyer Flask - 1000 mL

    9 reviews

    The best brewers make large yeast starters to get their beer fermenting fast. Large populations of active yeast help ensure flavorful beer free of off flavors. Our 1000ml Erlenmyer Flask is the ideal vessel to make a large yeast starter for 5 gallon batches. Because it is made from borosilicate glass you can move it from a boil on your gas stove into a cold water bath for cooling, without the risk of cracking. (We do not recommend the use of an electric element. If this cannot be avoided, we recommend using a larger pot as a hot water bath on the stove.) This means you can do the whole process in one container, keeping it simple and helping to reduce the risk of contamination when transferring from one container to another. Recommended Process for Use of Flask: Double Boiler Method It is important for your safety to heat water in the flask with a heat source that distributes heat evenly. Our manufacturer has confirmed that direct heat to the glass can break down its integrity and break if the heat source doesn't distribute evenly. Morebeer! recommends using the "double boiler method."  This process involves using a boiling water bath on the outside of the flask to heat up the water inside the flask.  All you need is a kettle 3 gallons or larger.  This process is much safer and efficient. If the flask should break or boil over, your kettle will be there to collect the contents, thus keeping your stove clean and keeping you away from potential harm.   Features 1L (1000mL) Capacity Made from Borosilicate Glass Fantastic price for a flask of this size Produced for MoreBeer!   Why make a yeast starter? (from our FAQ) We build starters for 3 main reasons. First, to ensure yeast health. By making a starter 1-3 days in advance, you ensure that your yeast is healthy and strong and ready to do its job. Second, to create more yeast. By making the starter you will increase the cell count of the yeast, giving you a better chance of keeping bacteria's and wild yeasts from fermenting your wort. Third, if you are making high gravity beers. If you are making a high gravity beer (1.060+) you will need more yeast to start the ferment faster. High gravity beers will also finish more completely when you pitch ample quantities of yeast. Fits our stopper 8 (FE455) In the lab world, these flasks are known as "Student Grade". A great flask for making yeast starters!(Student grade is not the highest grade flasks and will have minor defects) Kegland Part Number: KL03971

    $14.99

  • Erlenmeyer Flask - 500 ml

    Erlenmeyer Flask - 500 mL

    6 reviews

    All of our flasks are made from borosilicate type glass which is nice because they can be transferred directly from heat to ice and not crack like normal glass. (We do not recommend the use of an electric element. If this cannot be avoided, we recommend using a larger pot as a hot water bath on the stove.) Great Flask for yeast culturing. Recommended Process for Use of Flask: Double Boiler Method It is important for your safety to heat water in the flask with a heat source that distributes heat evenly. Our manufacturer has confirmed that direct heat to the glass can break down its integrity and break if the heat source doesn't distribute evenly. Morebeer! recommends using the "double boiler method."  This process involves using a boiling water bath on the outside of the flask to heat up the water inside the flask.  All you need is a kettle 3 gallons or larger.  This process is much safer and efficient. If the flask should break or boil over, your kettle will be there to collect the contents, thus keeping your stove clean and keeping you away from potential harm.   In the lab world, these flasks are known as "Student Grade". A great flask for making yeast starters! (Student grade is not the highest grade flask and will have minor defects) Kegland Part Number: KL03964

    $12.49

  • Erlenmeyer Flask - 250 ml

    Erlenmeyer Flask - 250 mL

    2 reviews

    All of our flasks are made from borosilicate type glass which is nice because they can be transferred directly from heat to ice and not crack like normal glass. Great Flask for yeast culturing. Uses a #6.5 stopper (see below) In the lab world, these flasks are known as "Student Grade". A great flask for making yeast starters! (Student grade is not the highest grade flasks and will have minor defects) Kegland Part Number: KL03957

    $10.99

  • Erlenmeyer Flask - 125mL

    Erlenmeyer Flask - 125mL

    All of our flasks are made from borosilicate type glass which is nice because they can be transferred directly from heat to ice and not crack like normal glass. Primarily used with our MT140 Economy Aeration-Oxidation System, this flask also makes a great addition to any home wine lab. Uses a #5 stopper (see below) In the lab world, these flasks are known as "Student Grade". A great flask for making yeast starters! (Student grade is not the highest grade flasks and will have minor defects)

    $9.99

  • Erlenmeyer Flask (50 ml)

    50 mL Erlenmeyer Flask

    1 review

    Good for the first step-up off a plate or from 10ml to 50 ml Great Flask for yeast culturing. In the lab world, these flasks are known as "Student Grade". A great flask for making yeast starters! (Student grade is not the highest grade flasks and will have minor defects) Kegland Part Number: KL03933  

    $8.79

  • Sale -40% Erlenmeyer Flask - 125mL - 20mm Neck ID

    Erlenmeyer Flask | 125mL | Narrow Neck

    Made with durable borosilicate 3.3 glass, these Erlenmeyer flasks are suitable for most applications. They feature a heavy-duty beaded rim to help prevent breakage and have easy-to-read graduations. Able to withstand temperatures of -50 to 550 °C (-58 to 1022 °F), they are autoclavable for sterilization. In the lab world, these flasks are known as "Student Grade". Student grade is not the highest grade flasks and will have minor defects. Please note this 125mL flask has a narrow neck compared to our Y402 unit and will not accept a #5 stopper. This unit will need a #3 stopper. Specs: Material: Borosilicate Glass Capacity (mL): 125 Capacity (oz): 4 Min Graduation (mL): 50 Max Graduation (mL): 125 Graduation Interval (mL): 20 Overall Height (in): 4 59/64 Overall Height (cm): 12.5 Top Outside Diameter (mm): 22 Autoclavable: Yes Base Diameter (cm): 7.2 Inside Rim Diameter (mm): 20

    $9.99 $5.99

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