How To Clean a Bunn Commercial Coffee Maker

how to clean a bunn commercial coffee maker

By Rob Binns | Senior Writer

Chances are, you don’t clean your coffee maker nearly as often as you should.

study found that most people have no idea just quite how dirty their coffee maker is. Commercial coffee makers, in particular, are hotbeds for mold and bacteria because of the sheer volume of coffee they churn out.  If it’s been months (or, let’s be honest, years) since you last cleaned your coffee machine then it will probably have more germs in it than your bathroom counter. Yikes.

To make sure customers don’t drink any of the mold, yeast or bacteria that coffee makers grow, we asked a barista at one of Austin’s busiest cafes, how to keep your coffee maker squeaky clean.

What You Need

  • White vinegar
  • Distilled water
  • Lint free cloth
  • Measuring cup
  • Disinfectant spray

How to Clean a Commercial Coffee Machine

Do you have all the supplies you need? Let’s get started.

  1. Start by laying all of your supplies on a flat, clean surface.

Sophia recommends wiping down your workspace with a lint free cloth and disinfectant spray. This prevents any unwanted germs from getting into your machine during cleaning.

  1. Pour one quart of white vinegar into a measuring jug. Then, assemble the coffee machine as normal. Simply twist and lock your coffee jug into place and then place the empty carafe onto the base plate. Open the lid and pour the vinegar into the reservoir. You can now close the lid and turn on the machine.
  2. Now, sit back and let the vinegar do its work.
White vinegar is the perfect cleaning product because it penetrates the hot water tank, effectively eroding any mineral deposits that have built up inside the machine. Note that the cleaning process should take around two hours.
  1. After two hours, unplug the brewer and remove the brew funnel. Reach underneath the top of the machine and twist the spray head off in a clockwise direction.
  2. Pour a full carafe of distilled water into the top of the machine and close the lid. The water will start to flush the vinegar out from within the hot water tank. Make sure to put the carafe on the base plate to catch the water/vinegar solution. Otherwise, you’ll make a mess! Do this at least ten times until the vinegar smell subsides.
For best results, we recommend using at least a 20% white vinegar concentrate or stronger.
  1. Remove the brew funnel and reinstall the spray head by twisting it into place in a counterclockwise direction. Once done, replace the brew funnel and plug the machine back in so that the water in the hot water tank can heat back up. Add some distilled water to the machine and put your carafe back on the warmer plate.

That’s it. Simple, right?

Experts recommend that the brew funnel and carafe should be cleaned after each use. Bunn makes this easy by making all of their products dishwasher safe.

We often get asked if the cleaning process is the same for smaller Bunn appliances, such as coffee grinders. The short answer? It isn’t.

Read on to learn how to clean a Bunn commercial coffee grinder.

How to Clean a Bunn Commercial Grinder

Bunn commercial coffee grinders vary according to model and size, so each model will have its own specific cleaning instructions.

3 Things You Should Know

  1. Grinders must be unplugged before you clean any part of the appliance.
  2. Immersing the grinder in water destroys the grinder. Water damage voids your warranty, so do not under any circumstances put your grinder in the dishwasher.
  3. Always clean surfaces with a damp cloth and mild non-abrasive detergent.

Make Your Coffee Grinder Sparkle Again

  1. Having unplugged the coffee grinder, empty the hoppers and place an empty funnel and filter into the funnel rails.
  2. Reconnect power and press grind until the coffee chamber is empty.
  3. Again, disconnect and remove the cover and the burr housing. The inside of the machine should only be cleaned with a dry stiff brush.
  4. Reassemble the coffee grinder and always refer to the product manual in case there are any special cleaning requirements.

Cleaned your coffee maker, but still not happy with the results? It could be time to invest in a new machine. Discover 2019’s best commercial coffee machines.

Rob Binns
Rob Binns Senior Writer
Rob writes mainly about the payments industry, but also brings industry-specific knowledge of CRM software, social media monitoring, and invoice finance. When not exasperating his editor with bad puns, he can be found relaxing in a sunny corner, with a beer and a battered copy of Dostoevsky.
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