How to limit search results for specific post types in WordPress

    // http://www.wpbeginner.com/wp-tutorials/how-to-limit-search-results-for-specific-post-types-in-wordpress/
    function searchfilter($query) {

        if ($query->is_search && !is_admin() ) {
            $query->set('post_type',array('recipes'));
            $query->set('posts_per_page',10);
        }

        return $query;

    }

    add_filter('pre_get_posts','searchfilter');
    // used for short section immediately below