Ersatz is when we use something instead of something else, for example, substitutes in food, materials, or even in culture. Imagine that you want to drink coffee, but at home, you only have chicory. This is exactly the case when ersatz becomes part of your everyday life. Ersatz can be both a forced choice due to circumstances and a conscious decision if, for example, you are looking for something more environmentally friendly or cheaper.
In our world, ersatz is found everywhere: from synthetic fabrics that replace natural ones to artificial sweeteners instead of sugar. Sometimes we don't even realize that we are using substitutes, so ingrained they have become in our lives. This is not always bad, as such alternatives can be more accessible or align with modern trends and demands.
Ersatz can also refer to surrogate products.