Utiliser "premix" dans une phrase

1. Spices are among the most expensive, yet, with a bit of time, you can create your own spice blend for a fraction of the cost of premixed blends

2. Fill the containers with premixed, aged saltwater and you're ready to go

3. There were vertically no premixed paints in those days and it all had to be mixed by hand and on-site

4. Many people witnessed that she had syringes with her and bottles that had been premixed—by whom, no one knows