There are many different kinds of commercial urns that need to be cleaned daily and weekly or bi-weekly. Daily cleaning for most of them remains about the same. The number one rule about cleaning urns: Never use chlorine bleach in any coffee urn. This will chlorine will eat at the stainless steel and the silicone gaskets. Also, whether you are doing a daily cleaning or a bi-weekly cleaning never use soap, scouring powders, or abrasives of any kind to clean coffee brewing urns.
Automatic coffee urns must be cleaned daily after the last batch using the following steps:
1 – Drain the urn; then, run a brew cycle with just very hot water. After spraying hot water into the liner, thoroughly brush the entire urn with a long-handled brush.
2 – Drain the water and repeat step one.
3 – Wash the wire brew baskets with urn cleaner and rinse thoroughly. The same process is required for the double or triple urns after they have been used.
Automatic urns must have a special scouring once a week. Scour the urn by first filling the urn and heat to maximum brewing temperature. Fill the liner with several gallons of water and add at least 1½ to 3 ounces of coffee urn cleaning compound. Set the thermostat to high; then, run a brew cycle of hot water. Allow the solution to remain in the liner for at least 30 minutes. Scrub the inside of both the liner and the cover with a long-handled brush. Drain the cleaning solution from the liner. Rinse by running several brew cycles with the sprayhead centered over the liner. Be sure to drain the rinse water after each brew cycle shower faucet manufacturers.
To clean the gauge glass tube, turn off the power and turn off the water line to the urn. Use a long, thin gauge glass brush to clean the coffee gauge glass. Use the same brush to clean the fitting at the bottom of the liner and into the pipe that is connected to the coffee faucet.
It is an absolute necessity that Chinese hot tea urns, pour-over urns, midline and barista series urns need to be cleaned thoroughly at the end of each day. After spaying hot water in the stainless steel liner, thoroughly wash it with a soft brush using the hot water. Add one tablespoon of bicarbonate of soda to each gallon of water or you may use commercial urn cleaners. Commercial cleaners are not recommended for this type of urn. These urns should be turned off before each gauge glass should be cleaned with a hard bristle brush. Faucets should be taken apart and cleaned properly until fully clean. Daily cleaning for Midland urns and Barista series urns need to run through the brew cycle with hot water, brush the liner, drain the urn water again and repeat the process again. Wipe the liner covers and fill the liners with about one gallon of hot water to prevent coffee-oil burn-in.
Weekly or bi-weekly urn cleaning depends on the amount of use. For regular use, the Chinese hot tea urns, midline heat exchange and pump urns and Barista Series require somewhat the same method. Where it varies for one urn, it will be noted at that step.