En el artículo , Huge
escribió:

The 25ml bottle I got from Screwfix is still going
strong several years later, with refrigeration and careful handling (get
the top back on *fast* to expose it to the air as little as possible.)

Ta for the tip, now moved to the fridge.

I also blow into the nozzle (NOT applying lips!) sharply to clear the
hole, and don't screw the top back on tight, just enough to close it.
That prevents it from clogging up and having to be cleared with a
paperclip or similar next time you use it.

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