Flat Bottom Bags

The base is a separate sealed panel rather than a fold. That is why it stands square, keeps its footprint as it empties, and gives you five printable faces instead of two.

Quad seal describes the four vertical seals at the corners; box pouch describes the shape it makes. Flat bottom, block bottom, box pouch and quad seal are all the same construction.

Whatever the front panel should not carry: origin, roast date, brewing notes, ingredient lists. Moving the small print there is the point of the construction.

Per pack, usually yes — more film and more seals. Per unit of shelf presence it is often cheaper, and it cases and pallets squarer, so the freight works harder.

Per size and structure, not per artwork. A family of flavours in one size shares the tooling, which is the economical way to start.

5 kg is routine and heavier is quotable. Past that we would talk about a heavy duty sack construction with wider seal lands.

Both, and that combination is the standard specification for retail coffee. The valve goes in the front panel and the zipper under the top seal.

Yes. That is the main reason to choose it over a stand up pouch, whose base is held open by the fill rather than by its own seals.

Yes, and on speciality coffee it often reads better. A tin tie is not a reclosure in the airtight sense, so where shelf life after opening matters we would specify a zipper.

Yes, with a thicker laminate, wider seal lands and a sealant chosen for the fat content of the recipe. Carry handles are available at that weight.