Exclude Post Formats from Blog

functions.php

<?php

/**
 * Exclude Post Formats from Blog
 * 
 * @author Bill Erickson
 * @link http://www.billerickson.net/customize-the-wordpress-query/
 * @param object $query data
 *
 */

function be_exclude_post_formats_from_blog( $query ) {

  if( $query->is_main_query() && $query->is_home() ) {
		$tax_query = array( array( 
			'taxonomy' => 'post_format',
			'field' => 'slug',
			'terms' => array('post-format-link' ),
			'operator' => 'NOT IN',
		) );
		$query->set( 'tax_query', $tax_query );
	}

}
add_action( 'pre_get_posts', 'be_exclude_post_formats_from_blog' );