After burning up several regular vacuum sealers over the years due to moisture getting to the pump I decided to purchase a chamber vacuum sealer. WOW! What a difference! So far we have ran 20 deer through this unit and several gallons of venison veggie soup and plan on doing some chili as well. We have also done green beans and sweet corn,frog legs,squirrel,rabbit,bluegill..ect We are currently running individual portions of everything we can get our hands on for my son as we just leased a apartment for him while at school and he will be feeding himself...lolHe will be eating a lot of home cooked meals and wild game. This is a commercial unit that utilizes a oil bath pump. Pricey at $870 but oh so worth it! The bags are far cheaper for a chamber style sealer.