Category Archives: Yeast Propagation

25 mm x 8 mm Stir Bar – $3.29 + Free Add On Shipping

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25 mm (about .98″) by 8 mm Teflon Magnetic Stir Bar.

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.

4/25/17 4 PM Central: This highly rated stir bar his selling for $3.29. Shipping to most US addresses is also free, with a qualifying order, as part of the Amazon’s Add On promotion. Price, shipping and availability can change quickly. Check the product page for up to the minute price and availability.  See Recent Amazon Finds and our Amazon Fillers Resource Page to help you put together an order that qualifies for free shipping.

Bel-Art F37120-0025 Spinbar Teflon Polygon Magnetic Stirring Bar; 25 x 8mm, White, without Pivot Ring

Also Consider… StirStarter Stir Plate | Yeast Starters and Fermentation Resources

Recent Amazon Finds [view more]:


2,000 mL Erlenmeyer Flask – $15.99, Limited Availability

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2,000 mL/2 Liter Borosilicate Flask for making yeast starters.

From the description: “Our large 2000ml Erlenmeyer 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.) ” [keep reading]

Product Description – Here  Use coupon code BEERDEAL to get this discount.

Erlenmeyer Flask (2000 ml) Y430 – $19.99 $15.99 + Free Shipping with a $59 order

Availability: This is a More Beer Deal of the Day.  Quantities are limited. Check the Deal of the Day section – Here – to see if this is still available.

RelatedYeast Starters & Fermentation

This ships for free as part of MoreBeer’s Free Shipping Promo.  Grab your next recipe kit – See: BrewMaster SeriesBrewing Pliny, some gear, something that’s on sale or clearance and put together a $59 order to get free shipping.

Recent More Beer [more]:53_1449191776

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StirStarter Stir Plate

Bel-Art Spinpak 6 Pack of Stir Bars

Bel-Art Scienceware F371600000 Teflon (PTFE), Octagonal Spinpak Magnetic Stir Bar Assortment, with Pivot Ring (Pack of 6)

6 Pack of PTFE Stir Bars by Bel-Art.  Octagonal shape to create more turbulence and stronger vortex vs round, cylindrical shape or a polygonal shape stir bars.  PTFE casing.  Built-in pivot ring helps reduce vibration and wear during stirring.  Contains six stir bars, two each in the following sizes: 1 x 0.3125″ (25.4 x 8 mm), 1.5 x 0.3125″ (38.1 x 8 mm), 2 x 0.3125″ (50.8 x 8 mm)

Combine with a Stir Plate and Erlenmeyer and you’re all set up to do stir plate starters.

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.

Update: Since this post was published the price, availability or promotion has changed.  Check the product page for up to the minute description, price and availability.  Also: Today’s Deals on Amazon

Bel-Art Scienceware F371600000 Teflon (PTFE), Octagonal Spinpak Magnetic Stir Bar Assortment, with Pivot Ring (Pack of 6)

AlsoYeast Starters & Fermentation Resource Page | StirStarter Stir Plate | Yeast: The Practical Guide to Beer Fermentation

Recent Amazon Finds [view more]:

StirStarter Stir Plate

2 Liter Erlenmeyer Flask – $15.37 + Free Shipping

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2,000 mL/2 Liter Borosilicate Erlenmeyer Flask by SEOH.  Height: 197mm / 7.75 Inches. Base Diameter: 273mm / 10.75 Inches.

Use for yeast starters [See: StirStarterYeast Starters & Fermentation] to increase cell counts, have better and more vigorous fermentations.

4/13/17 1 AM Central: This is selling for just $15.37.  Shipping to most US addresses also is free. Price, shipping and availability can change quickly. Check the product page for up to the minute price and availability.

SEOH Erlenmeyer Flask 2000ML Borosilicate Glass

AlsoYeast Starters & Fermentation | StirStarter Stir Plate | Yeast: The Practical Guide to Beer Fermentation

Recent Amazon Finds [view more]:

Oxygenation and Aeration Supplies at William’s Brewing

6 Pack of PTFE Stir Bars

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).

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.

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.

Update: Since this post was published the price, availability or promotion has changed.  Check the product page for up to the minute description, price and availability.  Also: Today’s Deals on Amazon

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

Also available in single and 10 packs…

AlsoYeast: The Practical Guide to Beer Fermentation · StirStarter Stir Plate · Yeast Starter & Fermentation

Recent Amazon Finds [view more]:

StirStarter Stir Plate

AmScope 1000x Microscope – [Yeast Counting, Banking, Farming and Propagation]

AmScope M100C-LED Compound Monocular Microscope, WF10x and WF25x Eyepieces, 40x-1000x Magnification, LED Illumination, Brightfield, Plain Stage

M100C-LED Compound Monocular Microscope by Amscope

  • FIVE Magnification Powers Up to 1000x
  • 45 degree Inclined 360 degree Rotatale Monocular Head
  • Single Lens Condenser with Disc Diaphragm
  • Metal Framework and Built-in LED Illumination

Use to count yeast and aid in the process of banking and propagating yeast for your homebrew.  At up to 1000x magnification you’ve got plenty of magnifying power.

Update: Since this post was published the price, availability or promotion has changed.  Check the product page for up to the minute description, price and availability.  Also: Today’s Deals on Amazon

AmScope 40x-1000x All-Metal Student Cordless LED Field Biological Compound Microscope with All Optical Glass Lenses

AlsoYeast Starters & Fermentation Resource Page | Yeast: The Practical Guide to Beer Fermentation

Recent Amazon Finds [view more]:

AmScope 1000x Microscope – [Yeast Counting, Banking, Farming and Propagation]

AmScope M100C-LED Compound Monocular Microscope, WF10x and WF25x Eyepieces, 40x-1000x Magnification, LED Illumination, Brightfield, Plain Stage

M100C-LED Compound Monocular Microscope by Amscope

  • FIVE Magnification Powers Up to 1000x
  • 45 degree Inclined 360 degree Rotatale Monocular Head
  • Single Lens Condenser with Disc Diaphragm
  • Metal Framework and Built-in LED Illumination

Use to count yeast and aid in the process of banking and propagating yeast for your homebrew.  At up to 1000x magnification you’ve got plenty of magnifying power.

Update: Since this post was published the price, availability or promotion has changed.  Check the product page for up to the minute description, price and availability.  Also: Today’s Deals on Amazon

AmScope 40x-1000x All-Metal Student Cordless LED Field Biological Compound Microscope with All Optical Glass Lenses

AlsoYeast Starters & Fermentation Resource Page | Yeast: The Practical Guide to Beer Fermentation

Recent Amazon Finds [view more]: