Formula storage and baby food home. The other four have no label at all.
The leaf the spine is about. An infant formula carries a use by date under prescribed conditions, and a transfer leaves both behind.
Baby food home
Which is usually made rather than bought, so there is no original label and no date to lose. The container is doing all of the work.
And it is the most demanding leaf on temperature
Made in batch, frozen in portions, thawed and warmed. Which is exactly the span only 2 of the 176 containers cover.
Leftover storage
Cooked food, cooled, refrigerated or frozen, reheated. 109 of 176 containers top out at 120 F and cannot be reheated in.
Lunch portion and school snack
Which travel. Those want a container that seals against a bag and survives being dropped, and 109 PET of 176 is the brittle option.
Meal prep home
The leaf the group is named for, and the one that needs the freezer to microwave span. Two containers on this shelf provide it.
So the group divides by temperature rather than by product
Which is unusual. Most properties here divide by chemistry or by format.
And our temperature field is complete
Published on all 176 containers, which no other field in this catalog manages on any shelf measured here.
The 89-400 neck dominates
75 of 176 containers, which is a wide mouth and the right answer for getting a portion in and out.
A tub opens to its full diameter and stacks, which is what a week of portions needs.
And 5 plastic square grip containers
Which stack better again. Square beats round for refrigerator density, the same argument as in the pantry.
And 20 amber containers are the protective option
Plus 16 black and 1 dark amber, against 52 clear and 44 white. For a product whose nutrient content has to survive storage, that is the choice the shelf makes available and not the one it makes easy.
Two of six leaves have a rule and six of six have a thermometer
Which is the honest summary of this group.
References
21 CFR 107.20(c) requires on the label of an infant formula a "Use by ______" date, "the blank to be filled in with the month and year selected by the manufacturer, packer, or distributor of the infant formula on the basis of tests or other information showing that the infant formula, until that date, under the conditions of handling, storage, preparation, and use prescribed by label directions, will: (1) when consumed, contain not less than the quantity of each nutrient, as set forth on its label; and (2) otherwise be of an acceptable quality (e.g., pass through an ordinary bottle nipple)." Nothing on these pages states what other federal date labeling requirements exist or do not exist.
law.cornell.eduThe Davis Pack Supply catalog, measured 19 October 2026. A temperature range specification is published on all 176 containers in this group and takes exactly four values: -40 to 120 F on 109 containers, 0 to 240 F on 45, -100 to 190 F on 20, and -100 to 300 F on 2. So 109 of 176 top out at 120 F. The cold-tolerant groups stop at 120 or 190 F and the heat-tolerant group bottoms out at 0 F, so only the 2 containers rated -100 to 300 F span both a freezer and an oven. Catalog-wide the field takes nine values. A temperature range is not a statement that a container is microwave, dishwasher or oven safe; only a manufacturer can make those.
The Davis Pack Supply catalog, measured 19 October 2026. 421 rows: 176 containers and 245 closures. 125 to 7,571 mL with a median of 473. 109 PET, 45 PP, 20 HDPE and 2 glass. 129 jars, 24 tubs and pails, 23 bottles. 83 PET single wall jars, 18 PP single wall jars, 16 PP round tubs, 6 double wall round base jars, and 5 each of plastic square grip containers, double wall straight base jars, PE wide mouth containers and PET packer bottles. 52 clear, 44 white, 24 natural, 20 amber, 16 black, 11 blue, 7 green, 1 dark amber. Necks: 75 at 89-400, 31 at 70-400, 25 unrecorded, 9 at 110-400, 7 at 53-400, 5 at 120TT, 4 at 120-400, 3 at 100-400. Closures: 174 continuous thread polypropylene lids, 29 metal or aluminum CT caps, 16 dome lids, 11 round tub lids, 5 sealing discs, 3 plastic round pail lids, 2 phenolic, 1 plug seal lid, 1 metal lug or twist cap, 1 tamper evident lid. Buyability, a snapshot: 105 of 176 available, 71 not; 72 quote only; 18 full case only, with case packs from 16 to 3,150 and a median of 208.
