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Chapter 04

Packing and labeling

A jar only protects what you put into it on purpose.

Work a single packing ritual so you never invent a new one while you are tired.

  1. ▸Clean and fully dry the container. A wet jar is a chemistry set.
  2. ▸Portion into use-size amounts so the bulk stays sealed. The ten-pound pail you open twice a year should not be the same pail you dip every Saturday.
  3. ▸Add the right helper: desiccant for dry powders, nothing extra for oxidizers and acids unless the page says so.
  4. ▸Seal. Squeeze air out of bags. Check the gasket.
  5. ▸Label the same way every time: name, formula if you know it, grade, hazard word, fill date, quantity, and where it lives.
  6. ▸Store cool, dark, and with its own kind. Oldest dated stock gets used first.

Group the shelf the way a fire marshal would, not the way an alphabet would. Oxidizers on their own. Acids on their own. Alkali on their own. Fuels and waxes on their own. Heavy on the low shelf. Monthly look: leaks, rust rings, spent desiccant, a bulge, a wet caking that was dry last month.