React keys for an array of strings

I have a question. How can I generate key for array of string? It is not object, in object I could put id and it would solve the problem. So what should I do in just array? Indexes as key is not a good practice so I am stuck.

const ingredients = ['rice', 'curry', 'chicken]



    {props.ingredients.map((ingredient) => (
                <Box>{ingredient}</Box>
          ))}