"Gualtier Malde" > wrote in message
>
> However, my first experience has been bad. I'm not getting a decent seal.
> The problem is that I don't know whether it's the tube that's defective or
> whether it's a coincidence that my machine sickened at the time I bought
> the roll.
>
> Has anyone else found a definite and noticeable difference between what is
> being sold now and the old product?

I have one roll so far and see no difference.

To do a test, try sealing a plain bag just to see if the heater strip is
working. If yes, try a bag with a nice clean edge again. Any of the old
bags in the freezer that you can use for comparison?