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Coffee and tea
All Containers›Shop by use case›Coffee and tea›No valve, anywhereShop all coffee and tea →
The products

No valve, anywhere

By Dwight Davis, Founder

Updated

On this page13
Zero products with valve in the name. Checked across the whole catalog.

What fresh roasted coffee does

It releases carbon dioxide for days after roasting, in quantity. The gas has to go somewhere.

Which gives two bad options and one good one

A sealed rigid container builds pressure. A loose closure lets oxygen in. A one-way valve lets gas out and nothing in.

And there is no valve in this catalog

Checked catalog-wide: no product with valve in its family name or product name, and nothing describing degassing.

So two of the six leaves have no proper answer here

Coffee bean home and ground coffee home. The shelf offers a rigid jar with a plain lid.

Which for a home user is workable

Because a household buys small quantities and opens the jar daily, so the pressure vents and the oxygen exposure is happening anyway.

For anything sold sealed it is not

A sealed jar of fresh roasted coffee with an induction seal and no valve is a pressure vessel with a foil lid.

80 heat induction seals out of 304 closures

Which is the article that makes that failure possible, and it is the largest liner group on this shelf.

The other four leaves do not need a valve

Dried herb, loose tea, salt and spice do not off-gas. For those the seal is purely a barrier and the shelf is well equipped.

Salt cellar is the odd one out entirely

Salt does not have volatile oil, does not off-gas and does not degrade in light. Its only enemy is moisture, and 80 induction seals handle that.

And a salt cellar is usually open by design

A pinch bowl with a lid rather than a sealed jar, which this shelf serves with 158 jars and 22 dome lids.

So the six leaves divide three ways

Two that need an article we do not have, three that want a tight seal, and one that wants a lid it can leave off.

The valve is a sourcing gap rather than a routing one

Nothing is hiding it. The article does not exist in this catalog and the fix is a purchase.

References

The Davis Pack Supply catalog, checked catalog-wide on 19 October 2026. There is no product with valve in its family name or product name and nothing describing degassing anywhere in the catalog. Freshly roasted coffee releases carbon dioxide for days after roasting, and a one-way degassing valve is the article that lets it out without letting air in. Among the 304 closures indexed to this group, the only metering articles are 7 spice caps and 1 spice sifter disc.
The Davis Pack Supply catalog, measured 19 October 2026. 509 rows: 205 containers and 304 closures, which is one of the largest shelves in this library. 30 to 18,927 mL with a median of 177, a 630-fold range: 156 over 4 oz, 45 over 8 oz, 36 over a quart and 20 over a gallon. 97 PET, 53 PP, 31 HDPE and 24 glass. 158 jars, 24 tubs and pails, 22 bottles, 1 tube. 77 PET single wall jars, 20 PP single wall jars, 16 double wall round base jars, 15 glass straight sided jars, 10 double wall straight base jars, 9 plastic round pails. 62 clear, 55 white, 23 natural, 21 amber, 20 black, 11 blue, 7 green, 4 frosted, 2 dark amber. Necks: 54 at 70-400, 36 at 58-400, 28 at 89-400, 28 unrecorded, 11 at 53-400, 9 at 48-400, 8 at 110-400. Closures: 194 continuous thread polypropylene lids, 41 metal or aluminum CT caps, 22 dome lids, 12 round tub lids, 9 sealing discs, 7 plastic round pail lids, 7 spice caps, 3 phenolic, 1 spice sifter disc. Liners: 80 heat induction seal, 44 F217, 43 unrecorded, 37 No Liner, 34 pressure sensitive, 23 Plastis standard, 19 PE foam, 18 foam, 3 polycone. Buyability, a snapshot: 129 of 205 available, 75 not, 1 unrecorded; 76 quote only; 32 full case only, with case packs from 8 to 6,370 and a median of 280.
Written from 21 CFR 101.22(a)(2) and from the catalog as it stood on 19 October 2026. That definition is aimed at a spice from which volatile oil has been removed deliberately and is not a shelf-life rule; nothing here says how long any spice keeps or whether any product has lost volatile oil. The spice lists in 21 CFR 182.10 and part 184 are cross-referred in the section and are not enumerated here. There is no one-way degassing valve anywhere in this catalog.