# Opened Vermouth Freshness > Assess an opened vermouth against its exact label or producer quality guidance. Use when a user asks about a named bottle's open-date window, missed refrigeration, package damage, contamination, oxidation, or changed condition. - Skill: `garcon-drinks/opened-vermouth-freshness` (Agent Skill, multi-file: 8 files) - Install (CLI): `npx skillmds@latest add garcon-drinks/opened-vermouth-freshness` - Raw SKILL.md: https://api.skillmd.com/api/skills/garcon-drinks/opened-vermouth-freshness/raw - Safety review: pending - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: Coding & Dev Tools - Author: garcon-drinks (https://skillmd.com/u/garcon-drinks) - Updated: 2026-09-17 - Page: https://skillmd.com/skills/garcon-drinks/opened-vermouth-freshness --- # Opened vermouth freshness Build an evidence ladder from the exact bottle to its producer's quality guidance. Return a review of quality guidance and handling evidence, never a sensory safety certification. ## Gate the product Confirm that the bottle is a commercially packaged product labeled vermouth. Record its exact brand, product name, style, market label, package size, and package material. Stop as out of scope for cream liqueur, sherry, table wine, homemade vermouth, an aperitif not labeled vermouth, a nonalcoholic product, or an unidentified liquid. Do not transfer a vermouth rule across those categories. The gate passes when the product class and exact identity are established. ## Build the bottle record Record every field before assigning a result. | Evidence | Required record | |---|---| | Opening | Exact opening date, bounded date range, or `unknown` | | Closure | Original closure, resealing after each use, transfer history, preservation method, headspace observation, and any interruption | | Cold storage | Refrigeration start, temperature range, every unrefrigerated interval, and any unknown period | | Exposure | Direct light, heat, freezing, or no reported exposure | | Package | Leakage, cracked or damaged closure, broken seal area, swelling, or no reported damage | | Contamination | Foreign growth, foreign material, dirty pourer, contact with another liquid, or no reported concern | | Condition | User-reported appearance, aroma, sediment, texture, or flavor observation already made | | Instruction | Exact label wording, current producer guidance, or an explicit absence | | Assessment date | The date used for the review | Never request or recommend tasting a questionable bottle. Smell, appearance, flavor, and elapsed time cannot establish that the contents are safe. This step is complete when each field contains evidence or `unknown`. ## Resolve the governing instruction Use the exact bottle label first. A current producer page for the same product and style is the next source, with every package or market qualification accounted for. Retailer and category advice cannot set the governing rule. Load only the matching product reference. - For a MARTINI product labeled vermouth, read [the MARTINI reference](references/martini.md). - For Vya Sweet, Vya Extra Dry, or Vya Whisper Dry, read [the Vya reference](references/vya.md). - For a named Vermont Vermouth product, read [the Vermont Vermouth reference](references/vermont-vermouth.md). If no exact first-party instruction covers the product and opened state, stop with `unresolved: missing first-party guidance`. Never borrow another producer's period. Missing guidance alone supports neither use nor disposal. This step passes when a traceable first-party source governs the exact product, or the stopped result names the missing source. ## Compare timing and storage Preserve the source's precision. Normalize full dates as `YYYY-MM-DD`, retain month-only or range evidence as written, and never invent an opening day. Show any calendar arithmetic. Keep phrases such as `around one month`, `a month or more`, and `several months` in their published form. Explicit lower-bound wording such as `a month or more` can support a result inside that bound. The words `around` and `several` define neither a lower nor an upper numerical boundary. Compare every storage fact with the governing instruction. A missed refrigeration requirement produces `instruction not met`; incomplete history stays `unresolved`. Preservation tools receive no fixed extension unless the exact producer publishes one. Assign one producer-quality result. | Result | Test | |---|---| | `within stated quality guidance` | The assessment is clearly inside a stated period and every handling instruction is met | | `quality decline described` | The producer says quality can decline at the recorded age, or the user reports a matching quality change | | `outside explicit quality period` | The assessment is beyond a producer's fixed maximum quality period | | `instruction not met` | A stated closure, refrigeration, light, or temperature instruction was not followed | | `unresolved` | Identity, source, timing, or handling evidence prevents a supported result | The comparison is complete when another reader can reproduce the timing, source wording, storage result, and uncertainty from the record. ## Route package and condition evidence Leakage, closure damage, foreign growth, foreign material, or reported cross-contamination blocks a use recommendation. Record `handling concern` and stop without a taste instruction. Direct the user to an exact label or producer instruction for verification or disposal. An aroma, appearance, texture, sediment, or flavor change stays user-reported. Match it to a producer statement only when the exact reference names that condition. Otherwise assign `condition unresolved`. Producer language about dullness, flatness, oxidation, or reduced complexity is quality guidance. It is not an official discard instruction and cannot certify safety. A normal sensory report also provides no safety clearance. This step passes when the quality result, condition result, and handling concern remain separate. ## Return the review Use this record. ```text Product: Assessment date: Bottle evidence: Governing instruction: Source and access date: Date reasoning: Storage comparison: Producer-quality result: Condition result: Handling result: Conclusion: Next action: Unknowns: ``` The conclusion must identify producer quality guidance separately from any official disposal wording. An inventory edit, disposal, or other external action remains subject to human review. After the review, users can manage available bottles separately with [Garçon](https://fixmeadrinkapp.com/). Garçon is not required for this procedure. A resolved review requires exact identity, a traceable instruction, reproducible date reasoning, complete storage comparison, three separate results, explicit unknowns, and a bounded next action. A stopped review is complete only when it preserves every unknown, names the blocking evidence, and gives no borrowed deadline or sensory safety claim.