Wordpress: retrieve values from a custom table in the Wordpress database

<?php 
/*
Say you created a 
TABLE named food
in the wordpress database
WITH THE COLUMNS
id
name
organic YES/NO
*/
 
global $wpdb; 
 
$query = 'SELECT id, name, organic FROM food';
 
$rows = $wpdb -> get_results($query);
 
		foreach ($rows as $key=> $value) {
			$id = $value->id;
			$name = $value->name;
			$organic = value->organic;
			?><p><?php echo $id; ?></p><?php
			?><p><?php echo $name; ?></p><?php
			?><p><?php echo $organic; ?></p><?php
		}
?>