Hi @terrykcobb, weighing the bag is not always needed if you’ve got a good vacuum seal or the food itself is less buoyant than water. Some food needs a bit of help to stay submerged, and including cutlery in the vacuum bag is one method that users have reported some success with. You can also try covering the bag with a small plate or dish, using magnets if you’re cooking in a metal vessel, or bulldog clips to clamp the bag to the side of the pot. If you’re going to add cutlery to your bag, it’s a good idea to vacuum seal the cutlery first so you don’t add any metallic flavour to your food. Probably best to use a blunt knife, otherwise you’d add air pockets which kinda defeats the purpose.
Good luck, and please let us know how you get on.