The taste of the food seems to be the easiest to recreate. As long as you know the correct ingredients, your food should taste the same as regular food. The only obvious difference is how the food is put together.
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Natural Machines is the first to point out that they are not on a quest to take all the work out of cooking. Instead they want to eliminate the time-consuming preparation that discourages people from wanting to cook in the first place. They also argue that the machines promote healthier eating because they require fresh ingredients to be prepared before the printing.