Food packaging are used to fill from water thin liquids to thick liquids. The examples of thin liquids are soy sauce, vinegar, cocktail sauce, edible oil, juice etc. Milk, yogurt, lactic acid drink, butter, jam, paste, tomato sauce, honey, mustard, salad dressing, mayonnaise, ketchup, vinaigrette, chilli sauce etc are examples of thick liquids.
Mayonnaise, ketchup or sauces which are oxygen sensitive usually require multilayer packaging in order to preserve the products. Some products also need an acid resistance layer or UV barrier to keep food safty and extend shelf-life. Co-extrusion blow molding machine is the model adatable for those applications.
Wide mouth PET jars are often used for food packaging for nuts or jelly. CMS-QW series are recommended for those applications.
Also, CM-40P and CMR-45P.6ST are highly appropriate for production of popsicle or frozen bar in various form.