Cool Brewing

Cool Brewing Fermentation Cooler Bag

An insulated fermentation bag cooled with frozen bottles or ice packs; the maker says two frozen 2-liter bottles bring the inside about 10°F below ambient.

  • About 10°F drop with 2 bottles (maker)
  • No electricity
  • Folds away

Best for Summer ales without a fridge

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Opens the product page with today’s price, variants and delivery. We may earn a commission at no extra cost to you. For adults 21+.

Specifications

TypeInsulated fermentation bag
VolumeFits a 5 gal fermenter
OutputsInsulated bag for ice bottles or packs

As stated by the maker or seller. Specs can change between versions and sellers; confirm on the listing. We did not test this product.

From the maker

  • CREATE IDEAL FERMENTATION TEMPERATURES: Controlling your fermentation temperatures is a CRITICAL step to making great beer! Simply use your cooler with frozen 2 liters or ice packs and NEVER lose a batch of beer to high temps again! We…
  • EASY TO USE AND MAINTAIN TEMPS: Normal Ale ferm. range is 68 to 72 deg. 2 frozen, 2-liter bottles result in a 10 deg. F drop below ambient. 3 frozen 2-liter has a 15 degree F drop. This is scalable up to a 30 degree F drop below room temp!

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Yeast pitch rate calculatorCells or grams of yeast for your batch.

Full listing title: Home Brewing Fermentation Cooler - Beer Brewing Temperature Control, Keg Cooler, Fermentation Brewing Bag. The Original - Cool Brewing Fermentation Cooler.