When it comes to vacuum-packing with liquids, it simply works better with a marinating aid: Used along with our vacuum pump and ZWILLING FRESH & SAVE vacuum bags, the marinating aid ensures that the pump does not absorb the liquids so quickly. Marinades or meat juices remain in the bag as they accumulate in the marinating aid. This protects the vacuum pump from damage from liquids and everything is exactly where it should be.