What to add to molasses solution to prevent mould growth?

[choochoo_balooParticipant @choochoo_baloo]

[choochoo_balooParticipant @choochoo_baloo]

I've been successfully using diluted molasses for rust removal.

However after a good few weeks, unsurprisingly a carpet of mould floats on the surface.

Any suggestions for a chemical I can add to sterilise the solution, that won't affect the chemistry (so ruling out anything acidic)?

Thanks in advance.

Edited By choochoo_baloo on 08/04/2020 21:12:18

[Michael Cox 1Participant @michaelcox1]

Potassium sorbate is widely used in the food industry to prevent mould growth. Borax (sodium tetraborate) is widely used in aqueous timber treatments to prevent mould growth.

Hope this helps

Mike

[Martin KyteParticipant @martinkyte99762]

Can't you just scrape it off. The metal is unlikely to go mouldy.

Martin

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