Seaweed can be used as a fire retardant.
In Berlin, meanwhile, a female designer has developed a thin algae-based film and coated it with a natural dye. The aim? To stop still edible food being wasted.
Her film changes colour according to the pH value of what it’s covering, reacting upon contact with gases like ammonia, produced when fish or meat spoils.
First planned product: a container lid with an integrated film. Meaning one quick look will be enough to check if the food in your fridge is still edible. Whatever its sell-by date.