194 of the 304 closures are the same plain lid.
What a spice cap does
It meters. A sifter or a shaker side lets out a measured sprinkle without opening the jar, which is how a spice is actually used.
And there are 7 of them
Plus one spice sifter disc, out of 304 closures indexed to this group. Eight metering articles on a shelf whose name includes spice.
Against 194 plain continuous thread lids
Which seal and nothing else. A spice in one of those is poured or spooned out with the lid fully off.
Which is the recurring pattern in this library
A large closure count is not a wide closure range. The depth is in one article.
And it has a real consequence for volatile oil
A jar opened fully to use a pinch exposes the whole headspace to the room, every time. A sifter exposes a hole.
So the metering closure is also the barrier closure
Which is an argument for the 8 rather than a convenience preference, and it connects straight back to the definition.
The liner picture is stronger
80 heat induction seals, 44 F217, 34 pressure sensitive, 23 Plastis standard, 19 PE foam, 18 foam, 3 polycone.
Against 37 recorded as No Liner and 43 unrecorded
So 80 of the 304 closures either have no liner or no record of one, which is the quarter of the shelf to rule out for a volatile product.
A blank is not a claim of no liner
It is an absence of data. 43 of the 304 are blank and 37 say No Liner, and those are different statements.
12 round tub lids and 7 pail lids
Which serve the bulk end, where the closure is a lid across the full diameter rather than a thread.
9 sealing discs
The tamper article on this shelf, and the only one. The preparedness property sets out what a tamper-evident feature has to be.
Specify the liner and ask about the sifter
Two requests, and the second one has eight possible answers out of 304.
References
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.
21 CFR 101.22(a)(2): "The term spice means any aromatic vegetable substance in the whole, broken, or ground form, except for those substances which have been traditionally regarded as foods, such as onions, garlic and celery; whose significant function in food is seasoning rather than nutritional; that is true to name; and from which no portion of any volatile oil or other flavoring principle has been removed." The same paragraph provides that "paprika, turmeric, and saffron or other spices which are also colors, shall be declared as 'spice and coloring' unless declared by their common or usual name", and cross-refers to the spice lists in 21 CFR 182.10 and part 184, which are not enumerated here. The definition addresses a spice from which volatile oil has been removed and is not a shelf-life rule.
law.cornell.edu 