"All bottles were sealed with the bottle caps to avoid foreign substances being added

[middleage S]

"All bottles were sealed with the bottle caps to avoid foreign substances being added

"All bottles were sealed with the bottle caps to avoid foreign substances being added into liquids."


Is it appropriate to use 'seal' even if the bottle wasn't sealed permanently?

 

[Charlie Bernstein]

Re: "All bottles were sealed with the bottle caps to avoid foreign substances being a

Yes.

 

[GoesStation]

Re: "All bottles were sealed with the bottle caps to avoid foreign substances being a

"All bottles were sealed with [STRIKE]the[/STRIKE] bottle caps to avoid foreign substances being added into the liquids."

Is the above what you're trying to say? This might be clearer: The bottles were sealed with bottle caps to prevent the introduction of foreign substances.