This is my first chamber sealer. I like it for all the same reasons everyone else does. I almost didn’t get this one, because I read that you can’t seal bags from the outside. If you have something too large for the chamber, like a large roast or a whole rack of ribs, you need to be able to vacuum seal it from outside the chamber. If I couldn’t do that, I’d still give this five stars, because this is a really great vacuum sealer.
I made a video to show how to vacuum seal from the outside. It’s my first video review, and not very good, but I think it does okay at showing how to do this. I failed to mention you have to use textured bags for this, like FoodSaver bags. The smooth bags you use for chamber vacuum sealing won’t work for outside vacuum sealing.
My first attempt at outside sealing failed, because I simply inserted the open end of the bag into the chamber and closed the lid. The machine vacuumed, but it didn’t vacuum the air out of the bag.
You have to set it up the same way you would for chamber sealing, with one side of the bag opening under the clips, the other side over the clips, and the bag over the sealing bar, then turned back, so it hangs outside the chamber. Close the lid, and it will vacuum the air out of the bag then seal it. Watch the video and you’ll see what I mean. It’s easier than it sounds.
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The CV12 is very easy to use. It has three presets for small, medium and large bags, or you can use your own custom settings.
You can set the vacuum time from 5 to 80 seconds in one second intervals.
You can set the seal time from 0 to 9 seconds in half second intervals.
The chamber is smooth and easy to clean. The chamber is larger than I expected. The bottom center is flat for about 6 ½ inches in diameter, then gradually tapers upward as it approaches the sides, but it still leaves plenty of space inside the chamber.
You can use the textured bags if you have them, but you can also use the less expensive smooth bags.
They’ve improved the design, so it now comes with a port and hose for attachments. The hose plugs into the port inside the chamber. You use one side of the attachment end of the hose for zipper bag valves. Turn it around and use it for canisters. (See photos) I’m able to use all the accessories I used with my FoodSaver.
One of my favorite things to do with a vacuum sealer is to reseal jars of partially used products, like pickles, jelly, yeast, etc. If the jar is small enough to fit upright in the chamber, you can reseal it inside the chamber. Set the seal for 0 seconds, and the vacuum time for 40 seconds. You may need to adjust the vacuum time up or down, using experience as your guide. You can do several jars at once, if they fit. Make sure it’s not a tight squeeze or the jar will break. Don’t ask how I know, but I will tell you the chamber is durable and easy to clean.
For jars which won’t fit upright inside the chamber, you can place them inside a larger jar or canister outside the chamber, and use your accessories which you purchased separately to vacuum the large outer jar or canister, then release the vacuum and your jar(s) of product will be vacuum sealed.