All finishes made after 1972 are food-safe when cured
properly. This process can take several weeks after a film has formed. We
recommend adding a couple days beyond the products label’s recommendation to
allow for temperature and humidity variations. A good rule of thumb is 30 days.
Outdoor varnishes, including marine
finishes, have a lot of UV absorbers in them to withstand radiation from the sun.
They’re also designed to be more elastic to cope with the expansion and contraction
of the wood. This movement of the wood is caused by heat and cold, as well as
by the wood taking in moisture during periods of high humidity and releasing
the same moisture during periods of low humidity.