You cracked the jar in June and told yourself the date would stick. August does not remember. The nugs still look loud, and you cannot tell from the lid whether this is week two or week ten.
Write the day you opened it. If you never opened it, write the day it came home. The lab date on a certificate of analysis is when a lab ran a sample. The tape on the glass is when this lid first moved for you. That strip of tape is the memory the lid will not keep.
Southern Ohio already has this argument when somebody trusts the PDF date and the empty brain at once. One person writes the open day on the jar. One person swears they will remember and then asks the stash in August what week it is. Same flower sits under both habits, and only one of those habits leaves a calendar on the glass.
Two OGs, same family puts two famous names on the same tray and asks you to finish the compare with the nose and the panel. This chapter is a smaller clock: the day on the paper versus the day on your jar. The working jar is the small one covers which lid you open. This chapter covers how you remember when you opened it.

How to keep the flower
When you crack it, write that day on the tape. Add the strain name if you want. The number that matters is the day this lid first moved.
Do not copy the certificate date onto the jar and call it done. That day is when a lab ran a sample. It is not when you opened this one.
They did not trial your Sharpie
I did not find a paper that put the same flower in a dated jar and an undated jar and published the nose. I am not hanging a shelf-life number on a strip of tape. The keep is still practice: write the day you opened it, or the day it came home.
Grocery dates are a different clock. USDA’s food-dating page says “open dating” is a calendar date the maker or the store prints. Except for infant formula, federal law does not even require that date. Those phrases are about quality on an unopened pack, not the night you cracked a mason (USDA FSIS, Food Product Dating, updated 2025-04-23, https://www.fsis.usda.gov/food-safety/safe-food-handling-and-preparation/food-safety-basics/food-product-dating).
Codex uses the same kind of factory language: manufacture date, packaging date, and best-before on the unopened pack (Codex CXS 1-1985, 2018 revision). That is not your tape.
I am not writing a days-until-stale number. This is practice, not a trial of the tape.

Honesty, because the tray will ask
There is no dated-jar-versus-undated-jar flower paper in hand for this chapter. USDA FSIS food dating and Codex CXS 1-1985 are in hand, and both talk about factory or store dates on unopened packs. I am not writing a days-until-stale number as science.

This is 21+ educational writing with no medical claims. It is about how you keep the flower.
Sources
- USDA Food Safety and Inspection Service. Food Product Dating. Updated 2025-04-23. Grocery open dating is a maker or store calendar date. Not first-open. Not flower. https://www.fsis.usda.gov/food-safety/safe-food-handling-and-preparation/food-safety-basics/food-product-dating
- Codex Alimentarius Commission. General Standard for the Labelling of Prepackaged Foods. CXS 1-1985, revised 2018. Manufacture, packaging, and best-before on the unopened pack. Not flower. Not household tape.
Flagged / not used as numbers: any days-until-stale for tape (none found); treating a certificate date as the jar-open date; treating USDA “open dating” as the night you cracked the lid; rewriting Chapter 13 as this chapter; linking the killed COA-snapshot chapter; blog “6–12 months peak.”
Series note
This is chapter 14 of a CincyCannaDash quality library. The still still runs, and the tape is the memory. Next is not locked.
The live board is today's menu. Dated lab reports sit next to the lots, and areas lists the Southern Ohio towns we already serve. 21+. (513) 986-5438.
More notes
- The lid ring is the seal
- The working jar is the small one
- The bag is not a jar
- The empty jar is a bigger still
- The grind is the last harvest
- Two OGs, same family
- The fridge is a wet box
- Light is the faster insult
- The dash is a kiln
- The pack is not a cure
- The freezer is not a time machine
- Amber is senescence
- The name is not the plant
- How pick up and delivery works
- How to read a lab report
- Your cannabis jar is a still