Another key trend will be 3D-printed food, which will produce “intricate sculptures out of everyday foodstuffs that will look good and will also be used to improve the convenience and the nutritional value of meals”.

另一个关键趋势将是3D打印食品，它将产生“由日常食品制成的复杂雕塑，这些雕塑看起来会很好，还将被用来改善膳食的便利性和营养价值”。

A is out of B=A is made of B 意思“A是由B建成/制成”（A为产品；B为材料）

out of every foodstuffs为介词短语作方式/来源状语 意思“日常食品制成”

out of 用…（制成）；由…（建成）(英文解释 If something is made out of a particular material, it consists of that material because it has been formed or constructed from it.）

Would you advise people to make a building out of wood or stone?  

你会建议人们用木材还是石头建房子呢？