Main page abbreviates posts instead of showing full posts

This is my page – https://freshfruitsmoothiesforsummer.com/

The theme that I am using called Orange Squash makes the posts on the front page abbreviated to only 5 or 6 lines. If readers want to read the entire post, they have to click on the post. I’d like the main page to display all the posts. I don’t know where in the CSS theme to fix that. Thanks.