The toaster expert said that these should be cleaned at least once a week.
To make sure this is cleaned you can simply remove the crumb tray from the bottom of the toaster, empty the crumbs into the bin then get a damp paper towel or cloth and wipe away any remaining crumbs before putting it back in.
But he added: "Cleaning the crumb tray regularly will increase the lifespan of the product – which of course will be cost-saving and more sustainable over time."
So now you know.
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