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Like most PolyScience equipment, the 300 Series Sealer is very well designed and built like a tank. It also uses a dry piston pump, which requires much less maintenance, though it can overheat sometimes if used continuously for hours.
The PolyScience 300 Series has an external vacuum port which can be used to vacuum seal canisters, deli containers and Mason jars. It also has three programmable buttons that allow you to set, select and run frequently used Vacuum Level, Marinate Time and Seal Time combinations.
You also get the general benefits of using a chambered vacuum sealer such as less expensive bags, much longer lasting food storage, and the abilities to vacuum seal liquids and sauces, pressure marinate meats, and use vacuum compression and texture modification.
The two biggest downsides are the price, and the size of the unit. Running almost a grand, the 300 Series is at the higher end of home vacuum sealers, but it is full featured. Like most chamber sealers, the unit itself is also very large, at around 14" by 18" by 12" and weighs 55 pounds. It's not something you want to be putting away in the closet after each use so you need decent counter space. We have ours on a rolling cart that we can put in the dining room when not in use.
Since we've gotten the PolyScience 300 series, we use it at least 3-4 times a week for a variety of things such as: sealing food for sous viding, sealing fresh vegetables, bulk purchases of meat and chicken for freezing, and freezing leftovers for another day. Just the other day I bought a 5-pound bag of salted peanuts in the shell - that's a lot of peanuts. So, I ended up vacuum sealing them into four bags so that they would stay fresh for a lot longer. We love this thing, not sure what we did without it!
If it sounds right for you, buy one today!
Have you used the PolyScience 300 Series Chamber Vacuum Sealer? Let us know what you thought of it!