As others have mentioned, because the berries were wet, it was sucking the wetness into the seal area causing a poor seal. Three things you could do to alleviate that. 1) dry the berries before vacuum sealing them. 2) Wash them well, dry them, freeze them on a cookie sheet, then vacuum seal them. 3) dry them off and vacuum seal them using the double seal.
Thanks for writing in these tips! I believe comments before you have mentioned the same about double seal. According to the directions, I used gentle as seen in video. Great tip about the red button.
Your berries are pretty wet, and that moisture is getting into the seal area, that is why it did not seal well. Put it on double seal and see if that helps you.
I have this exact model, and just as some of the folks have mentioned in regards to sealing. I have mine set on the double seal for everything. It's just a nice feature, and I ask myself, "Why not use it on all vacuum sealed food?" Thank you for your review.
Why don’t you use the double seal instead of sealing it twice? It seems like the double seal option was made for exactly the issue you are having with your first seal.
Thanks for putting the tip out there for everyone. I was going by the instructions recommended by manufacturer. I do double seal, dry berries on paper towel before processing. I just wanted to put up a video that went by manufacturer directions to show the process of figuring out this vacuum sealer.
It does. As stated in another comment, I found it after the video was made. My blueberries were also still a bit wet and that also attributed to me doing the seal twice. Since the video, have done carrots, corn, beans and hamburger. Works great.