1. Select the Chrome menu as shown in the screenshot below:

2. Click on 'Clear Browsing Data' as shown above. 

3. Click on 'Empty the cache' option as shown below: 

4. If you wish you can also select the 'Delete cookies and other site data' option as shown below: 

5. Select 'the beginning of time' in the dropdown box as shown above

6. Click on 'Clear Browsing Data' to action.