Borosilicate glass is resistant to thermal shock, so it can go right from direct heat to an ice bath without cracking. (Do not use directly on electric stove tops please!). Making a large yeast starter will ensure that you get the best possible performance from your yeast.

1000 mL Borosilicate Glass Flask

Used for yeast culturing and making small yeast starters.  Increase pitching rates to get better yeast performance.........................$12.00

2000 mL Borosilicate Glass Flask

Propagate yeast for 5 gallons of average gravity ales. Starters will increase yeast viability and vitality.................................$22.00 

5000 mL Borosilicate Glass Flask

Used for making large yeast starters for 5 gallons of lager or high gravity beers. Or for 10 to 15 gallon brewers. Increase pitching rates to get better flavor in your beer.............................$40.00

Foam Stopper

Breathable foam makes the perfect airlock for flasks or even Better Bottles.  They can be sanitized by boiling, autoclaving, or soaking in a sanitizer solution.  The “honeycomb” structure keeps wild yeasts and airborne bacteria out, while letting CO2 gas escape.  Fits 35 mm - 45 mm openings..............................$1.00

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