How to Clean a Glass Carboy

A glass carboy is a large jug, typically one gallon or larger, used to make home brew. These thick glass jugs have traditionally been used for this process, and are still used today by those who make their own beer. The goal is to clean the carboy in a manner that gets rid of all the residue and buildup, without causing damage to the jug. This can be done with a gentle, inexpensive cleaning routine.

Things You'll Need

• Bleach or vinegar
• Water
• Stove
• Funnel
• Bottle brush
• Cleaning rags
• Dish rack
• Dishwasher and detergent (optional)

Instructions

1. Add to the jug a solution of 1 part bleach or vinegar to 10 parts hot water.

2. Hold your hand over the top of the carboy, and shake it vigorously.

3. Push a bottle brush in and out through the top of the bottle, scrubbing the inside of the jug with the brush.

4. Pour out the liquid.

5. If possible, sanitize the carboy in a dishwasher with dishwasher detergent. Skip this step if you do not have a dishwasher.

6. Place a funnel into the lip of the carboy, and pour in boiling water. Fill the jug, let the water sit for about a minute, then discard the water. Using boiling water as a final rinse is important, as water with lower temperatures can lead to spoiled batches.

7. Flip the bottle upside down, and allow it to dry on a dish rack.

References

• How to Brew: Bottle Cleaning