Category Archives: Stir Bars

Bel-Art Spinbar Teflon Octagon Magnetic Stirring Bar – 25.4 x 8mm – $5.10 + free prime ship, w/coupon

Bel-Art Spinbar Teflon Octagon Magnetic Stirring Bar; 25.4 x 8mm, White (F37110-0001)

Bel-Art Spinbar Teflon Octagon Magnetic Stirring Bar; 25.4 x 8mm, White (F37110-0001)

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From the product description, check product page for current description, price and availability:

  • Octagonal shape creates more turbulence and a stronger vortex than a round, cylindrical shape or a polygonal shape
  • Teflon (PTFE) casing is chemically inert, can be used with corrosive chemicals, and helps reduce friction and wear while spinning
  • Built-in pivot ring helps reduce vibration and wear during stirring
  • Internal magnet made from alnico V, an alloy of aluminum, nickel, iron, and cobalt
  • Casing material is approved for use in food, drug, and cosmetic applications

 

  • Use along with an Erlenmeyer Flask and Stir Plate to do Stir Plate Yeast Starters.
  • What are Other’s Saying?   Search this product’s Amazon reviews for “brew” – may include reviews for other sizes or variations
  • Why a Stir Plate? The constant motion of a stir plate integrates oxygen, puts yeast in constant contact with nutrients, relieves built up CO2 and generally helps yeast to grow more rapidly.  That also means smaller starters.

12/12/19 6 PM Central: This is selling for $6.37.  Click on “Save an extra 20% when you apply this coupon” and the price drops to $5.10.  Shipping is also free to many US addresses with Prime Membership [Try Prime for Free] or a qualifying orderPrices, shipping and availability can change quickly. Please note that product prices and availability are subject to change. Prices and availability were accurate at the time this post was published; however, they may differ from those you see when you visit Amazon. Check the product page for current price, description and availability. Also: Recent Amazon Finds and Amazon Fillers Resource Page 

Bel-Art Spinbar Teflon Octagon Magnetic Stirring Bar; 25.4 x 8mm, White (F37110-0001) – note that multiple variations of this product may be available, as such a different version may appear at this link


Related: Yeast: The Practical Guide to Beer Fermentation & Best Sellers in Lab Erlenmeyers – via Amazon | StirStarter Stir Plate | Yeast Starters and Fermentation Resource Page

More: Recent Amazon Finds

FIVE x 1″ PTFE Magnetic Stir Bars – $7.50, $1.50 each + Free Shipping

PTFE Magnetic Stir Bar, 8mm x 25mm, Package of 5, Beer Home Brewing Application

PTFE Magnetic Stir Bar, 8mm x 25mm, Package of 5, Beer Home Brewing Application

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From the product description, check product page for current description, price and availability:

A package of five economy stir bars.

Dimensions are 8mm x 25mm, or 0.31 inches x 0.98 inches.


 

25 mm = .98″

Use these in combination with an Erlenmeyer Flask and Stir Plate to make a yeast starter.  A stir plate… keeps yeast in constant contact with nutrients, encourages CO2 to off gas and continuously incorporates oxygen all of that means higher cell counts.

As if this posting, this is eBay offering is selling for just $7.50. Shipping is also free to most US addresses.  Prices, shipping and availability can change quickly. Please note that product prices and availability are subject to change. Prices and availability were accurate at the time this this post was published; however, they may differ from those you see when you visit the product page. Check the product page for current price, description and availability.

PTFE Magnetic Stir Bar, 8mm x 25mm, Package of 5, Beer Home Brewing Application

Related: Yeast: The Practical Guide to Beer Fermentation & Best Sellers in Lab Erlenmeyers – via Amazon | StirStarter Stir Plate | Yeast Starters and Fermentation Resource Page

More: Recent Great Deals

Great Deal On – StirStarter Stir Plate

rp:ebay5stirbars

7 x PTFE Magnetic Stir Bars – Mixed Sizes – $7.39, $1.06 each + free prime ship

7pcs Lab Mixed Size PTFE Magnetic Stirrer Mixer Stir Bars

7pcs Lab Mixed Size PTFE Magnetic Stirrer Mixer Stir Bars

Use along with an Erlenmeyer Flask and Stir Plate to do Stir Plate Yeast Starters.

Why a Stir Plate? The constant motion of a stir plate integrates oxygen, puts yeast in constant contact with nutrients, relieves built up CO2 and generally helps yeast to grow more rapidly.  That also means smaller starters.

11/24/19 7 PM Central: These are selling for just $7.39. Shipping is also free to many US addresses with Prime Membership [Try Prime for Free] or a qualifying orderPrices, shipping and availability can change quickly. Please note that product prices and availability are subject to change. Prices and availability were accurate at the time this post was published; however, they may differ from those you see when you visit Amazon. Check the product page for current price, description and availability. Also: Recent Amazon Finds and Amazon Fillers Resource Page 

7pcs Lab Mixed Size PTFE Magnetic Stirrer Mixer Stir Bars


Related: Yeast: The Practical Guide to Beer Fermentation & Best Sellers in Lab Erlenmeyers – via Amazon | StirStarter Stir Plate | Yeast Starters and Fermentation Resource Page

More: Recent Amazon Finds

Make sure the components you use are compatible and rated for your intended application.  Contact manufacturer with questions about suitability or a specific application.  Always read and follow manufacturer directions.

TWO x 1″ PTFE Magnetic Stir Bars – $1.99 + Free Shipping

2pcs 1 inch B25 magnetic stirrer bar stir mixer bars PTFE lab spin spinner New

2pcs 1 inch B25 magnetic stirrer bar stir mixer bars PTFE lab spin spinner New

More Info

From the product description, check product page for current description, price and availability:

Name: PTFE stirring bar
Material: PTFE
Model: B25
Quantity: 2pcs
Color: White
Size: Approx.7x25mm / 0.3 inch x 1 inch (Width×Length)
Features:

High temperature: Using operating temperature up to 250 ℃
Corrosion resistance: for most chemicals and solvents, showing an inert, resistant to acid and alkali, water and various organic solvents
High Lubrication: solid material lowest coefficient of friction
Low temperature: has good mechanical toughness, even when the temperature dropped to -196 ℃, but also to maintain a 5% elongation
Not adhere to: a solid material minimum surface tension, does not adhere to any substance

Included in the Package:  2 pieces PTFE Magnetic Stirrer Bar


 

Use these in combination with an Erlenmeyer Flask and Stir Plate to make a yeast starter.  A stir plate… keeps yeast in constant contact with nutrients, encourages CO2 to off gas and continuously incorporates oxygen all of that means higher cell counts.

As if this posting, this is eBay offering is selling for just $1.99. Shipping is also free to most US addresses.  Prices, shipping and availability can change quickly. Please note that product prices and availability are subject to change. Prices and availability were accurate at the time this this post was published; however, they may differ from those you see when you visit the product page. Check the product page for current price, description and availability.

2pcs 1 inch B25 magnetic stirrer bar stir mixer bars PTFE lab spin spinner New

Related: Yeast: The Practical Guide to Beer Fermentation & Best Sellers in Lab Erlenmeyers – via Amazon | StirStarter Stir Plate | Yeast Starters and Fermentation Resource Page

More: Recent Great Deals

Great Deal On – StirStarter Stir Plate

rp:ebaystirbars

6 Pack of Stir Bars by SEOH – use for yeast starters – $11.99, $2 each + free prime ship

SEOH Magnetic Stir Bar Plain PTFE 6 x 25mm (Pack of 6)

6 Pack of Magnetic Stir Bars by SEOH.  PTFE 6 x 25 mm (about an inch).

More Info

From the product description, check product page for current description, price and availability:

A general purpose stir bar that provides better mixing than cylindrical stirrers. An Alnico V magnet is encapsulated with a two step process, compression and isostatic encapsulation, to eliminate cracks and porosity. Each stir bar is polished to reduce the potential for contamination. PACK OF 6


 

Use along with an Erlenmeyer Flask and Stir Plate to do Stir Plate Yeast Starters.

What are others saying?  Search this product’s Amazon reviews for “brew” – may include reviews for other sizes or variations

Why a Stir Plate? The constant motion of a stir plate integrates oxygen, puts yeast in constant contact with nutrients, relieves built up CO2 and generally helps yeast to grow more rapidly.  That also means smaller starters.  Why get 6?  Generally, you’re going to save money buying in bulk.  Having these on hand allows you to do multiple starters at once and… you’ll have spares if you mistakenly dump your stir bar into your fermenter.

I have this stir bar and it works great.  DIY Stir PlateThe vortex to the right was created with the help of this stir bar.  See: The HBF Stir Plate Mounting-Thingy for more info.

11/3/19 7:30 AM Central: These are selling for $11.99.  That figures to just $2 each. Shipping is also free to many US addresses with Prime Membership [Try Prime for Free] or a qualifying orderPrices, shipping and availability can change quickly. Please note that product prices and availability are subject to change. Prices and availability were accurate at the time this post was published; however, they may differ from those you see when you visit Amazon. Check the product page for current price, description and availability. Also: Recent Amazon Finds and Amazon Fillers Resource Page 

SEOH Magnetic Stir Bar Plain PTFE 6 x 25mm Pack of 6 – note that multiple variations of this product may be available, as such a different version may appear at this link


Related: Yeast: The Practical Guide to Beer Fermentation & Best Sellers in Lab Erlenmeyers – via Amazon | StirStarter Stir Plate | Yeast Starters and Fermentation Resource Page

More: Recent Amazon Finds

Make sure the components you use are compatible and rated for your intended application.  Contact manufacturer with questions about suitability or a specific application.  Always read and follow manufacturer directions.

prod:B00T84X40W

SEVEN x INTLLAB PTFE Stir Bars [Yeast Starters] – $7.80 – $1.11 Each + free prime ship

INTLLAB 7pcs/Pack Mixed Size PTFE Magnetic Stirrer Mixer Stir Bars Type-C


From the product description, check product page for current description, price and availability:

  • CHEMICAL RESISTANT – Teflon PTFE material can be used with corrosive chemicals, including acid and base
  • POWERFUL – Teflon (PTFE) casing helps reduce friction and wear while spinning
  • EASY USE – Place inside a container of liquid that is seated on a magnetic stirrer
  • PORTABLE FOR WIDE USE: perfect for stir a liquid or solution in scientific research, industry, agriculture, health and medicine, homebrew, etc

Use these in combination with an Erlenmeyer Flask and Stir Plate to make a yeast starter.  A stir plate… keeps yeast in constant contact with nutrients, encourages CO2 to off gas and continuously incorporates oxygen all of that means higher cell counts.

10/25/19 7:30 AM Central: These 7 stir bars are selling for just $7.80. Shipping is also free to many US addresses with Prime Membership [Try Prime for Free] or a qualifying order. Prices, shipping and availability can change quickly. Please note that product prices and availability are subject to change. Prices and availability were accurate at the time this post was published; however, they may differ from those you see when you visit Amazon. Check the product page for current price, description and availability. Also: Recent Amazon Finds and Amazon Fillers Resource Page 

INTLLAB 7pcs/Pack Mixed Size PTFE Magnetic Stirrer Mixer Stir Bars Type-C


Related: Yeast: The Practical Guide to Beer Fermentation & Best Sellers in Lab Erlenmeyers – via Amazon | StirStarter Stir Plate | Yeast Starters and Fermentation Resource Page

More: Recent Amazon Finds


10 x [25 mm x 7 mm] Magnetic Stir Bars

laboratory Magnetic Stir Bars PTFE Magnetic Stirrer Mixer Stir Bars Stiring rod (diameter 7mm,length 25mm) Spinbar Stirring, 10 Pcs

25 mm (about .98″) by 7mm  Magnetic Stir Bars


From the product description, check product page for current description, price and availability:

  • Size: 7mm * 25mm
  • Shape: Cylindrical With Ring Shape
  • High temperature: up to 250 ¡æ
  • Quantity£º10
  • Material PTFE (Polytetrafluoroethylene)

Use this in combination with an Erlenmeyer Flask and Stir Plate to make a yeast starter.  A stir plate… keeps yeast in constant contact with nutrients, encourages CO2 to off gas and continuously incorporates oxygen all of that means higher cell counts.

laboratory Magnetic Stir Bars PTFE Magnetic Stirrer Mixer Stir Bars Stiring rod (diameter 7mm,length 25mm) Spinbar Stirring, 10 Pcs


Related: Yeast: The Practical Guide to Beer Fermentation & Best Sellers in Lab Erlenmeyers – via Amazon | StirStarter Stir Plate | Yeast Starters and Fermentation Resource Page

More: Recent Amazon Finds


TWO x 1″ PTFE Magnetic Stir Bars – $1.99 + Free Shipping

2pcs 1 inch B25 magnetic stirrer bar stir mixer bars PTFE lab spin spinner New

2pcs 1 inch B25 magnetic stirrer bar stir mixer bars PTFE lab spin spinner New

More Info

From the product description, check product page for current description, price and availability:

Name: PTFE stirring bar
Material: PTFE
Model: B25
Quantity: 2pcs
Color: White
Size: Approx.7x25mm / 0.3 inch x 1 inch (Width×Length)
Features:

High temperature: Using operating temperature up to 250 ℃
Corrosion resistance: for most chemicals and solvents, showing an inert, resistant to acid and alkali, water and various organic solvents
High Lubrication: solid material lowest coefficient of friction
Low temperature: has good mechanical toughness, even when the temperature dropped to -196 ℃, but also to maintain a 5% elongation
Not adhere to: a solid material minimum surface tension, does not adhere to any substance

Included in the Package:  2 pieces PTFE Magnetic Stirrer Bar


 

Use these in combination with an Erlenmeyer Flask and Stir Plate to make a yeast starter.  A stir plate… keeps yeast in constant contact with nutrients, encourages CO2 to off gas and continuously incorporates oxygen all of that means higher cell counts.

As if this posting, this is eBay offering is selling for just $1.99. Shipping is also free to most US addresses.  Prices, shipping and availability can change quickly. Please note that product prices and availability are subject to change. Prices and availability were accurate at the time this this post was published; however, they may differ from those you see when you visit the product page. Check the product page for current price, description and availability.

2pcs 1 inch B25 magnetic stirrer bar stir mixer bars PTFE lab spin spinner New

Related: Yeast: The Practical Guide to Beer Fermentation & Best Sellers in Lab Erlenmeyers – via Amazon | StirStarter Stir Plate | Yeast Starters and Fermentation Resource Page

More: Recent Great Deals

Great Deal On – StirStarter Stir Plate

rp:ebaystirbars

TWO x 1″ PTFE Magnetic Stir Bars – $1.99 + Free Shipping

2pcs 1 inch B25 magnetic stirrer bar stir mixer bars PTFE lab spin spinner New

2pcs 1 inch B25 magnetic stirrer bar stir mixer bars PTFE lab spin spinner New

More Info

From the product description, check product page for current description, price and availability:

Name: PTFE stirring bar
Material: PTFE
Model: B25
Quantity: 2pcs
Color: White
Size: Approx.7x25mm / 0.3 inch x 1 inch (Width×Length)
Features:

High temperature: Using operating temperature up to 250 ℃
Corrosion resistance: for most chemicals and solvents, showing an inert, resistant to acid and alkali, water and various organic solvents
High Lubrication: solid material lowest coefficient of friction
Low temperature: has good mechanical toughness, even when the temperature dropped to -196 ℃, but also to maintain a 5% elongation
Not adhere to: a solid material minimum surface tension, does not adhere to any substance

Included in the Package:  2 pieces PTFE Magnetic Stirrer Bar


 

Use these in combination with an Erlenmeyer Flask and Stir Plate to make a yeast starter.  A stir plate… keeps yeast in constant contact with nutrients, encourages CO2 to off gas and continuously incorporates oxygen all of that means higher cell counts.

As if this posting, this is eBay offering is selling for just $1.99. Shipping is also free to most US addresses.  Prices, shipping and availability can change quickly. Please note that product prices and availability are subject to change. Prices and availability were accurate at the time this this post was published; however, they may differ from those you see when you visit the product page. Check the product page for current price, description and availability.

2pcs 1 inch B25 magnetic stirrer bar stir mixer bars PTFE lab spin spinner New

Related: Yeast: The Practical Guide to Beer Fermentation & Best Sellers in Lab Erlenmeyers – via Amazon | StirStarter Stir Plate | Yeast Starters and Fermentation Resource Page

More: Recent Great Deals

Great Deal On – StirStarter Stir Plate

rp:ebaystirbars

10 x [25 mm x 7 mm] Magnetic Stir Bars

laboratory Magnetic Stir Bars PTFE Magnetic Stirrer Mixer Stir Bars Stiring rod (diameter 7mm,length 25mm) Spinbar Stirring, 10 Pcs

25 mm (about .98″) by 7mm  Magnetic Stir Bars


From the product description, check product page for current description, price and availability:

  • Size: 7mm * 25mm
  • Shape: Cylindrical With Ring Shape
  • High temperature: up to 250 ¡æ
  • Quantity£º10
  • Material PTFE (Polytetrafluoroethylene)

Use this in combination with an Erlenmeyer Flask and Stir Plate to make a yeast starter.  A stir plate… keeps yeast in constant contact with nutrients, encourages CO2 to off gas and continuously incorporates oxygen all of that means higher cell counts.

laboratory Magnetic Stir Bars PTFE Magnetic Stirrer Mixer Stir Bars Stiring rod (diameter 7mm,length 25mm) Spinbar Stirring, 10 Pcs


Related: Yeast: The Practical Guide to Beer Fermentation & Best Sellers in Lab Erlenmeyers – via Amazon | StirStarter Stir Plate | Yeast Starters and Fermentation Resource Page

More: Recent Amazon Finds