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Reusing Booch Bottles: A Guide to Sanitizing Glass Vessels

A kombucha bottles sits on a cliff overlooking the Mississippi River in the summer.

Reusing glass kombucha bottles is a sustainable and cost-effective option that I encourage for EVERY home brewer. Proper sanitization is important to prevent unwanted bacteria from spoiling homemade kombucha. Follow my detailed three-step guide on how to sanitize reused glass bottles properly:

Step 1: The Big Rinse

  • Begin by thoroughly rinsing each bottle with super-hot water. Aim for temperatures around 140°F (60°C) to loosen any leftover kombucha or residue from a fruit or flavoring.
  • Use a bottle brush with gentle bristles to scrub the sides and reach any nooks and crannies. Pay particular attention to the necks and bottoms of the bottles, where sediment can build up.

Step 2: Choose Your Sanitization Method

There are two main approaches to sanitizing your bottles:

  • Vinegar Wash: Fill each bottle with a generous amount of white distilled vinegar. Swirl the vinegar around to coat the entire surface, then let it sit for 15-30 minutes. The acidity of the vinegar helps kill unwanted bacteria. After soaking, rinse the bottles thoroughly with hot water again.
  • Heat Treatment: This method offers a deeper clean and is ideal if you’ve had any mold issues in the past.
    • Dishwasher: Run your bottles (without lids) through the dishwasher on the hottest sanitizing cycle (usually around 160°F/71°C). This is my preference.
    • Boiling Water: Bring a large pot of water to a rolling boil on a stovetop. Carefully lower the bottles (without lids) into the boiling water using tongs and let them simmer for 5-10 minutes. Remove the bottles with sanitized tongs (be careful!) and let them air dry on a clean drying rack.

Step 3: Drying is Key

After sanitization, allow your bottles to air dry completely upside down on a clean drying rack. This ensures no moisture remains trapped inside, which encourages mold growth.

Bonus Tip: Inspect Before You Brew

Before filling your sanitized bottles, do a final visual inspection. Look for any chips, cracks, or imperfections in the glass or seals that could harbor bacteria. It’s always better to be safe than sorry and discard any bottles with imperfections.

By following these simple steps, you can ensure your reused glass bottles are squeaky clean and ready for your next batch of delicious kombucha! A clean brewing environment is vital for a healthy and tasty brew. Cheers!

More from The Booch Witch:

May Flowers Kombucha Recipe

May Flowers: Springtime Kombucha Recipe

Flavor homemade kombucha with The Booch Witch’s May Flowers recipe. Take advantage of organic concentrate, like tart cherry, to compliment the sweet floral notes from easy-to-find spring flowers like violets and pansies.

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