How to Make a Wine Fermentation Heater Aquarium

Written by kasandra rose
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How to Make a Wine Fermentation Heater Aquarium
Winter brewing requires heating. (wine from the wood image by Iryna Shpulak from Fotolia.com)

In wine and beer fermentation, yeast metabolises the sugar in the brew and converts it to alcohol. Because yeast thrives only in a particular temperature range, it is important that your cask remains warm. This makes brewing in the winter particularly difficult. Although there are many speciality items available to help keep your brew warm, you don't have to spend a lot of money to regulate the temperature that your wine ferments at.

Skill level:
Easy

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Things you need

  • Large aquarium or garbage can
  • Water
  • Aquarium heater
  • Floating aquarium thermometer

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Instructions

  1. 1

    Fit your fermentation cask inside a large aquarium or garbage can.

  2. 2

    Fill the aquarium with water close to the target temperature. Lagers should be kept at 7.22 to 10.0 degrees C, while ales require 15.6 to 23.9 degrees Celsius. Wine should ferment at 65 to 75 degrees Fahrenheit.

  3. 3

    Submerge an aquarium heater beneath the water level, and plug it in.

  4. 4

    Turn the adjustment knob on the heater until the light just barely turns on.

  5. 5

    Drop the thermometer into the water. Monitor the temperature every 15 minutes until the temperature stabilises.

  6. 6

    Adjust the heater until you have reached the desired temperature.

Tips and warnings

  • Add a powerhead to circulate the heated water around the keg.

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