Free images results:
 

Pouring pictures, stock photos and images

 
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Roundup Royalty Free Stock Photos
Author: Demonike
Glass Royalty Free Stock Photography
Author: Ladyann
Glass Royalty Free Stock Photo
Author: Milogu
Red wine Royalty Free Stock Image
Author: Milogu
Red wine Royalty Free Stock Photography
Author: Milogu
 
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Also, here are some commercial RF-licensed images that match your search criteria:  
Pouring beer Stock Photography
Author: Okea
Pouring milk Stock Images
Author: Okea