Wrong characters UTF8 with local json in Android

Question

I have a problem of codification reading a local .json from raw folder. The ParseJson class is same to example official: http://developer.android.com/reference/android/util/JsonReader.html

I pass it a InputSteam and I get a List correctly but with wrong characters (´ 1/4 etc.) and I used UTF-8 into ParseJson.

Will be the error in my inputStream? Should I encode in UTF-8 my InputStream before to pass it to ParseJson?

entrantes.json

[
    {
        "foto": "ajocolorao";
        "nombre": "Ajocolorao", 
        "pueblo":"Alfarnatejo",
        "ingredientes": "(4 personas)\n -¼ kg de bacalao\n -El zumo de ½ limón"
    }
]

Getting the .json

List<Receta> listRecetas = new ArrayList<Receta>();
InputStream inpuStream = getResources().openRawResource(R.raw.entrantes);
ParseJson parse = new ParseJson();
listRecetas = parse.readJsonStream(inputStream);

ParseJson.java

public class ParseJson {

    public List<Receta> readJsonStream(InputStream in) throws IOException {
        JsonReader reader = new JsonReader(new InputStreamReader(in, "UTF-8"));
        try {
            return readRecetasArray(reader);
        } finally {
            reader.close();
        }
    }

    public List<Receta> readRecetasArray(JsonReader reader) throws IOException {
        List<Receta> recetas = new ArrayList<Receta>();

        reader.beginArray();
        while (reader.hasNext()) {
            recetas.add(readReceta(reader));
        }
        reader.endArray();
        return recetas;
    }

    public Receta readReceta(JsonReader reader) throws IOException {
        String foto = null;
        String nombre = null;
        String pueblo = null;
        String ingredientes = null;

        reader.beginObject();
        while (reader.hasNext()) {
            String name = reader.nextName();
            if (name.equals("foto") && reader.peek() != JsonToken.NULL) {
                foto = reader.nextString();
            } else if (name.equals("nombre")) {
                nombre = reader.nextString();
            } else if (name.equals("pueblo")) {
                pueblo = reader.nextString();
            } else if (name.equals("ingredientes")
                    && reader.peek() != JsonToken.NULL) {
                ingredientes = reader.nextString();
            } else {
                reader.skipValue();
            }
        }
        reader.endObject();
        return new Receta(foto, nombre, pueblo, ingredientes);
    }
}

Thanks so much and sorry but my english is terrible.