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These include oils and meat grown from animal cells in bio-reactors - fermentation tanks like you might see in a brewery.

Under the proposal for English single malt whisky, the drink would only be required to be distilled at one site, while mashing and fermentation could take place elsewhere.

Last year, the Defense Department invested in a company working on using precision fermentation to make alt protein out of fungi.

At the company's factory in Finland, a fermentation machine captures carbon dioxide and water from the surrounding air.

The idea of mirror life was first floated in 1860 by Louis Pasteur, of vaccination, fermentation and pasteurization fame.