How To Empty or Drain A Bunn Coffee Maker For Storage?

If you’re a coffee lover, you know that a reliable coffee maker is a must-have in your home. And if you’re a fan of high-quality coffee, you’ve probably heard of Bunn coffee makers. These machines are known for their excellent performance and ability to produce delicious cups of coffee time and time again.

But like any appliance, they require regular maintenance to keep them running smoothly. One important part of maintaining your Bunn coffee maker is knowing how to drain it properly. In this blog post, I’ll show you step-by-step instructions on how to drain a Bunn coffee maker, so you can keep enjoying great-tasting coffee for years to come.

How To Drain a Bunn Coffee Maker In The Right Way?
  1. First, make sure the machine is turned off and unplugged. Locate the drain plug, which is usually located at the bottom of the machine. You may need to refer to your user manual to find the exact location for your specific model.
  2. Remove the drain plug by turning it counterclockwise. Be prepared for the water to flow out quickly once the plug is removed. Place a container or towel under the drain plug to catch the water and prevent any mess.
  3. Allow the water to drain completely before proceeding to the next step. This may take several minutes, depending on the amount of water left in the machine.
  4. Once the water has drained, locate the brew funnel and sprayhead. These components are typically located near the top of the machine and are connected to the water supply lines.
  5. Disconnect the brew funnel and sprayhead from the water supply lines. You may need to use a wrench or pliers to loosen any connections.
  6. Turn the machine upside down over a sink or large container to drain any remaining water from the brew funnel and sprayhead. Make sure to support the machine securely to avoid any damage or leaks.
  7. Reattach the brew funnel and sprayhead to the water supply lines, ensuring they are securely connected.
  8. Replace the drain plug and tighten it clockwise to secure it in place.
  9. Plug in the machine and turn it on. Run a cycle through the machine without any coffee grounds to ensure all excess water has been removed.
  10. Finally, wipe down the exterior and interior of the machine with a damp cloth to remove any remaining moisture. Your Bunn coffee maker is now ready to use.

Why You Need To Drain Bunn Coffee Maker?

  • To descale the machine – Over time, mineral deposits from water can build up inside a coffee maker. Descaling involves cleaning out these mineral deposits using a descaling solution or vinegar. To do this, you’ll need to drain all the water out first.
  • For cleaning or maintenance – It’s recommended to deep clean a coffee maker every 3-6 months. To thoroughly clean all parts of the machine, you’ll need to drain out any water reservoirs.
  • Before storing or transporting the machine – If you need to move the coffee maker or won’t be using it for a while, you’ll want to drain out any water still inside to prevent messes or mold buildup.
  • To change the water filter – If your Bunn coffee maker has a water filter that needs replacing, you’ll need to drain the old water out before installing the new filter.
  • To address leaking issues – If you notice water leaking from the coffee maker, draining it can help determine if the leak is from a cracked water reservoir or another issue.
  • Before making a different style of coffee – If you want to switch from brewing coffee to making espresso, for example, draining out old coffee water first helps prevent flavor mixing.
  • To troubleshoot problems – Draining the water reservoirs is often a first step in troubleshooting issues like a weak brew, unusual tastes, or overflowing. It allows you to start fresh with new water.

Cleaning Tips for Bunn Coffee Maker For Longer Life

  • Descale regularly: Scale buildup from hard water can clog tubes and affect brewing. Descale every 3-6 months with vinegar or a commercial descaling solution. Run a full brew cycle with the descaling solution.
  • Deep clean the brew basket: Remove the brew basket and wash it with dish soap and water. Use a bottle brush to scrub away oils and residue. Rinse thoroughly.
  • Wipe down exterior: Wipe down the outside of the Bunn coffee maker with a damp cloth to remove dust and spills. Don’t use abrasive cleaners.
  • Clean the water reservoir: Empty out all old water and use a clean cloth to wipe down the water reservoir. Make sure no debris or minerals are left behind.
  • Soak removable parts: Soak any removable pieces like the brew funnel, lid, and sprayhead in hot soapy water. Scrub and rinse.
  • Flush with vinegar: Run a full brew cycle with white vinegar to rinse out any residual soapy taste. Follow with a cycle of just water.
  • Replace filters: Replace water filters and paper filters according to the manufacturer’s instructions.
  • Clean server: Wipe down any dispenser servers, pitchers, or carafes with a non-abrasive sponge and dish soap.
  • Check tubes: Examine tubes and connections for cracks or blockages and replace them if needed.
  • Air dry all parts: Allow all parts to completely air dry before reassembling.


Is It Safe To Leave a Bunn Coffee Maker on All the Time?

Most Bunn coffee makers are designed for commercial use and are made to stay on for extended periods. However, leaving a coffee maker on all the time is not generally recommended for home use. Leaving it on constantly can lead to faster breakdown of internal components like the heating element and thermostat.

Can You Use Distilled Water In a Bunn Coffee Maker?

Yes, you can use distilled water but it may impact flavor and lifespan slightly. It’s best used partially mixed with tap water.

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