Line breaks affect how a short phrase is read. A balanced block can still be confusing if it separates words that belong together or emphasizes the wrong part of the message.
Group the meaning first
Keep a product name, number and unit, or closely connected phrase together when possible. For a label such as First clean cut, compare breaks after First and after clean. The visual rhythm and implied emphasis differ.
Adjust the layout next
Change the text box width, font size, or placement to support the better reading. Avoid compressing letter shapes just to force a phrase into a predetermined box. If the wording is too long, revise the wording itself.
Read the reduced export
Check the label quickly at small size, then ask someone else to read it aloud. If they pause in the wrong place or skip a word, revisit the break. The best arrangement is the one that preserves the intended meaning, not merely the one that forms a tidy rectangle.