The decants and the kit
On this page11
Soap decant
A concentrated biodegradable soap in 30 to 60 mL. Thin, slippery, and the one product whose leak contaminates food, so the closure matters more than for anything else in the group.
Condiment decant
Oil, hot sauce, soy, vinegar. Oils and acids, which is a liner question, and 86 containers at 60 mL or under is the relevant shelf.
Camp spice kit
Six to ten tiny containers of dry spice, in a single pouch or tray. The requirement is identical small containers that pack together and can be told apart.
Which this shelf serves thinly
27 containers at 30 mL or under and 8 at 15 or under. A six-container kit from this shelf is possible and the choice is narrow, and that is the honest statement.
Spice caps are the right closure
7 of them. A sift-and-pour cap on a small jar is what a camp kitchen wants, and 7 is the number.
Trail supplement
Electrolyte powder, drink mix, protein, or tablets. Dry, hygroscopic, and bulkier than people expect, which pushes it toward the 218 jars rather than the bottles.
Moisture is the supplement failure
An electrolyte powder that caked is a powder that will not dissolve and a container that will not pour. A lined closure is the fix and it is cheap.
Everything here should be one size
A kit built on one container and one closure packs flat, shares spare caps and is told apart by a label rather than by shape. That is worth more than the ideal container for each item.
Label it so it reads at dusk
Clear containers and a written label, or colored caps and a legend. Not color alone: six caps that differ only by shade are six identical containers to a lot of people.
And bag the group
One sealed bag around the kit means a single failure stays inside it. The bag is the cheapest piece of packaging in this property and the one that saves the trip.