One hundred per scent on stand-up pouches, flat pouches and pillow pouches, because each scent with its own artwork counts as a separate design. Four scents come to 400 bags in total. Side gusset, quad seal and flat bottom bags start at 500 per design. A single-use sample sachet is a small flat pouch, so it starts at 100 as well. That lets you launch a whole scent range, and a sampler to go with it, in printed pouches without over-buying any one blend.

Keep moisture out, because bath salts pull water from the air and set into a solid lump. The film and the seal are what stop that. A metallized pouch is our standard and is strong on moisture. Kraft works the same way, because the barrier is the metallized liner inside the paper. Heat-seal the top after you fill, and the zipper takes over once the customer opens it. Tell your customers to use a dry scoop. A wet one puts water straight inside, where no film can help. Get those right and the salts pour loose from the first bath to the last.

It depends on the blend, so we do not publish a blanket answer. Oils and fragrance sit against the inside layer of the pouch, which is also the layer that forms the seal. Ask us when you quote, with your product's SDS, and tell us roughly how much oil goes into the blend. We check it with production before we quote the film. That way the pouch is chosen for your actual recipe rather than for bath salts in general, and you find out about a problem on the quote, not in a customer's bathroom.

You can, but think about color and scent first. Our quote form treats bath products as light-sensitive, because they fade or oxidize in light, and clear film cannot stop that. For a colored or scented blend we suggest an opaque pouch and let the print show what is inside. A window is the middle ground. It is a cut-out with clear film behind it, and that area loses the barrier the rest of the pouch has, so keep it small. If you still want a fully clear pouch, we quote it and put the opaque option beside it, so you choose with both in front of you.

Coarse crystals and heavy packs press on the film and the seams, most of all in a shipping box. We do not publish a puncture rating. For coarse or heavy fills we can add a nylon layer, which is much tougher against sharp edges than the standard inner film. Tell us the grain size and the fill weight when you quote, and we spec it in. If the pouch hangs on a peg, pick the sombrero hang hole, the wider one made for heavier packs. A big bag of salts is better on a shelf than on a hook.