Best way to manage these old flow frames?

[Dawn_SD]

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Cleaning the Flow frames

I was given a flow hive that had been left standing for a couple of years. As a result the hive tool couldn’t move the seized sections up or down. due to propolis gumming up the works. I tried freezing and washing in hot water which removed most of the old wax and honey but still left the propolis in situ. I stripped the frames to their component parts and immersed them in a weak solution of caustic soda overnight then washed and brushed them to remove the softened gunge. After a thorough rinsin…