What goes wrong

A volume match is not a product match

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Capacity is the field everything is indexed on What capacity cannot tell you Pressure is the one that matters here Which makes it a data gap underneath a shelf gap The closure family name is the available proxy So run the query against the catalog, not the shelf Three different answers look identical from the shelf And the fix differs completely in each case For this group the answer is a purchase order And the same query is worth running before every build Volume matched on 145 rows and the closure matched on none Until then this is a refusal References

Capacity is the easiest field to match and the least informative.

Capacity is the field everything is indexed on

Which makes it the field most likely to produce a shelf that looks right and is not. Here it produced 145 of them.

What capacity cannot tell you

Whether a container holds pressure, takes a hot fill, resists a solvent, passes light, or accepts the closure the category uses. All of those decide the outcome.

Pressure is the one that matters here

And it is not a field we hold at all. There is no pressure rating in our data, so no amount of filtering would have caught this.

Which makes it a data gap underneath a shelf gap

The hazmat property has the same shape: the defining attribute of the category is not a field we record.

The closure family name is the available proxy

Crown, swing top, cork, champagne, can end. Searching for those catalog-wide is how this property established the answer, and it took one query.

So run the query against the catalog, not the shelf

Which is the transferable lesson. A curated shelf cannot tell you whether something is absent or merely outranked.

Three different answers look identical from the shelf

We do not hold it, we hold it and do not index it here, or we hold it and do not record the field that identifies it. The beer group has all three.

And the fix differs completely in each case

A purchase order, an index change, or a new field. Which is why the diagnosis is worth publishing rather than just the conclusion.

For this group the answer is a purchase order

Crown caps, crown-finish bottles, and a can line if crowlers are wanted. None of it is an index problem.

And the same query is worth running before every build

Search the catalog for the closure family the category actually uses, rather than filtering containers by volume. It is one query and it produces the answer in full.

Volume matched on 145 rows and the closure matched on none

Which is the ratio to remember. The field everything is indexed on agreed completely, and the field nobody indexed on disagreed completely.

Until then this is a refusal

Stated at the top of the property rather than discovered after a search, which is the only honest way to publish it.

References

The Davis Pack Supply catalog, checked catalog-wide on 19 October 2026. There is no crown cap, swing top, cork, champagne wire hood or can end anywhere in it. The largest closure family is 336 continuous thread polypropylene lids; the metal options are 62 metal or aluminum CT caps and 20 metal lug or twist caps. None of these retains carbonation. All five leaves in this group are carbonated products.

The Davis Pack Supply catalog, measured 19 October 2026. 328 rows: 145 containers and 183 closures. 250 to 976 mL with a median of 473; 82 over a pint, 18 over a quart. 124 PET and 21 glass. 137 bottles and 8 jars. 46 PET boston rounds, 27 PET packer bottles, 22 PET imperial bullet cosmos, 8 glass boston rounds, 5 honey containers, 5 PET cylinder rounds. 56 clear, 34 amber, 20 white, 16 blue, 8 green, 5 black, 4 dark amber. Necks: 43 at 24-410, 35 at 28-410, 26 at 45-400, 16 at 28-400, 9 at 38-400, 5 at 63TW. Closures: 107 continuous thread polypropylene lids, 17 spouted caps, 16 metal or aluminum CT caps, 15 flip top caps, 11 metal lug or twist caps. Buyability, a snapshot: 78 of 145 available, 67 not; 72 quote only; 44 full case only.

The Davis Pack Supply catalog, measured 19 October 2026. The catalog holds exactly one growler: a 946 mL amber PET growler on a 28-400 neck, flagged unavailable and full case only at a case pack of 60. It is indexed to beverages, hair care, soap and wash, oral care, kombucha and cold-pressed juice, and it is not indexed to this group, which has a growler fill leaf.

Written from 27 CFR 16.21 and 16.22 and from the catalog as it stood on 19 October 2026. This catalog holds no crown cap, swing top, cork, champagne hood or can end, so it cannot close a carbonated beverage and this property says so rather than selling around it. Nothing here addresses brewer's notice, permits, formula approval, excise tax, label approval, net contents or alcohol content statements, or state law. The placement requirement in 16.21 is described rather than quoted, because no verbatim rendering of it was obtained.