Generally, pressed by hand is a better way to identify that the top of the center of the cookie is hardened. The time is usually just about fifteen minutes. \x0d\\\\\x0d\\ If you're worried about baking them off, it's best to line them up denser, as well as lower the oven temperature a bit, and extend the baking time appropriately. \x0d\\\\x0d\\color, depending on what kind of cookies. The general nature is golden brown for the best, but if it is matcha cookies, naturally or green for the best, dark chocolate is naturally dark brown to black for the best. \x0d\\\\x0d\but the coloring or not can not be the standard to evaluate whether the baking is cooked or not, because if the temperature of the oven is too high, the surface of the cookie has been colored, but the center may not be ripe yet. So the owner has to press and then comprehensive evaluation, if necessary, should be adjusted baking conditions: time and temperature.