Lab Methodology & Transparency
Lab Methodology & Transparency
The Freeze Drying Lab is a real-world process testing and documentation program. WeFreezeDryIt runs tests on actual batches, publishes what is genuinely recorded, and labels every value honestly: measured, calculated, observed, or general guidance. It is not an accredited analytical laboratory, and no result on this site is a certified analysis unless external certified testing was actually performed and reported as such.
How Lab Data Is Produced
Six principles shape every record.
Measurements come from actual batches
Every measured value is recorded from a real run on a real machine, never estimated for the page. If it was not measured, the record says Not recorded.
Some tests are exploratory
A test may be a first attempt at an unusual product or an informal comparison. Exploratory tests are labeled as such, and their results are not over-generalized.
Not all conditions are laboratory-controlled
Batches run in real production and home conditions. Ambient temperature, humidity and other variables are noted when known, but this is not a climate-controlled lab.
Results vary by machine and preparation
A result from one machine, one preparation and one load does not guarantee the same outcome elsewhere. Records state the machine and preparation they used.
Calculations are labeled separately
Anything derived by formula, such as dry yield as a percentage, is shown as a Calculated result and never presented as a raw measurement.
Observations are practical notes
Texture, color, rehydration feel and powder behavior are human observations, not formal sensory-panel data. They are described in plain words and labeled Observed.
The Testing Process, Step by Step
Before a record can be published, a test passes through the documented steps below. They are the checklist the Lab follows for every published experiment, and each step is reflected in the record itself. WeFreezeDryIt internal testing is practical real-world testing and should not be represented as an accredited laboratory unless external accredited testing was actually used.
Equipment Used
The machine brand and model, pump type, trays and any instruments (scales, probes, timers) are named in the record. A result from one machine is never presented as a universal result.
Product Preparation
Washing, cutting, cooking, blanching, pre-freezing and portioning are documented so the test can be understood and repeated. Preparation is part of the result: change it and the result can change.
Weighing
Fresh weight and dry weight are read from an actual scale and recorded as Measured. Weights are never estimated for the page, and a batch without a genuine weight record says Not recorded rather than inventing a number.
Batch Documentation
Every published record is built from a real source record: a batch log, spreadsheet, photo set, video or machine notes. The record states what was captured and what was missed (Complete, Partial or Limited Data).
Dryness Assessment
Dryness is assessed by the practical checks used for real batches: final dry time, probe behavior, weight stability across the cycle and the standard sticky, cold or wet signs. Dryness assessment is practical and observed, not a moisture-content measurement. Weight loss from a batch is never called moisture content.
Yield Calculations
Dry yield is calculated by an explicit formula (dry weight divided by fresh weight) from measured weights and is always labeled Calculated, never Measured. The formula and inputs are shown so the number can be checked.
Rehydration Testing
When the Lab actually rehydrates a sample, the water added, dry food weight and resulting behavior are recorded as a Tested Rehydration Ratio. Everywhere else, rehydration figures are labeled Calculated Starting Rehydration Estimate or General Guidance, never Tested.
Photos
Real photos from the actual test are labeled Actual Test Photo and match the record's product, machine and batch. No stock or illustrative imagery is ever presented as a test.
Limitations
Every record states its limits: real production and home conditions, no climate-controlled laboratory, one machine, one preparation, one load. Anything not captured is recorded as Not recorded, not as zero or as an assumption.
Repeat Testing
A single batch is a single batch. When the same product is run again for new evidence, that run is documented as its own separate experiment with its own record and Test ID, and repeats are labeled as such rather than merged into one number.
External Lab Testing
If an outside accredited laboratory performs testing for WeFreezeDryIt, those results are labeled External Lab Result with the laboratory named and are kept fully separate from internal work. That has not happened yet, and nothing on this site implies otherwise.
To be plain: WeFreezeDryIt internal testing is practical real-world testing and should not be represented as an accredited laboratory unless external accredited testing was actually used. No result on this site is a certified analysis today, and none will be presented as one until a genuine external accredited result exists.
The Four Data Categories
Every piece of Lab data carries one of four labels, and the labels are never mixed. A calculated value is never presented as a measurement, an observation is never presented as instrument data, and general guidance is never presented as Lab evidence.
Measured
Directly recorded from an instrument during a real batch. Example: fresh weight 1,000 g, final dry weight 180 g, cycle time 24.5 hours. If it was not measured, the record says Not recorded.
Calculated
Derived by formula from measured values. Example: dry yield 18%, from 180 g dry divided by 1,000 g fresh. Shown as a Calculated result, always visually separate from raw measurements.
Observed
Human assessment during or after the test. Example: crisp throughout, rehydrated evenly in 8 minutes, ground into a fine powder with light clumping. Practical notes, not formal sensory-panel data.
General Guidance
Educational background from the Just Freeze Drying library: how sugars behave, why thickness affects cycle time, what packaging does. Never carries a Lab ID and is never counted as test evidence.
Test Limitations
Every record published here is limited in ways the record itself states. Tests run in real production and home conditions, not a climate-controlled laboratory, so ambient temperature, humidity and machine condition can influence results. A result from one machine, one preparation and one load does not guarantee the same outcome elsewhere. Measurements are recorded only for what was actually captured; anything else is Not recorded, Not tested or Not applicable. Exploratory and informal tests are labeled as such and are never generalized beyond what one batch can show.
The Lab vs a Scientific Laboratory
The Freeze Drying Lab is a real-world process testing and documentation program. WeFreezeDryIt is not an accredited analytical laboratory. Results published here are not certified-analysis results, and nothing on this site is presented as such. If an external accredited lab ever performs certified testing for us, those results would be clearly identified as External Laboratory Results and kept fully separate from our own measurements. Weight loss from a batch is never called moisture content, water activity or residual moisture: those require genuine laboratory measurement.
Terminology Glossary
The words used across the Lab, defined the way the Lab uses them.
- Measured
- A value read directly from an instrument during a real test: a scale, a machine clock, a temperature probe. This is the raw evidence behind a record.
- Calculated
- A value derived by formula from measured values, such as dry yield percentage (dry weight divided by fresh weight). Calculated never becomes Measured.
- Observed
- A human assessment recorded during or after a test: texture, color, rehydration behavior, powder behavior. Useful practical notes, not instrument data.
- General Guidance
- Educational background drawn from the Just Freeze Drying library and general freeze-drying knowledge. Never presented as Lab data and never given a Lab ID.
- Tested Rehydration Ratio
- A rehydration ratio labeled Tested only where a real, documented rehydration test produced the numbers. The formula: Water Added divided by Dry Food Weight.
- Calculated Starting Rehydration Estimate
- A rehydration figure derived from fresh and dry weights rather than a test. A useful starting point, never labeled Tested.
The Standard Experiment Template
When a real experiment is published, its page follows one standard template so records stay comparable. A future experiment page supports these sections:
On a published record, Measured Data and Calculated Results are always shown as visually separate blocks, so no one can mistake a formula output for a raw reading.
The Minimum Record Standard
A record is only published when all of these hold:
- An identifiable product: what was tested, including variety, recipe or source notes where relevant.
- A genuine experiment: the test really ran, with a real batch behind it.
- A source record: the original batch log, spreadsheet, photo set, video or machine notes the entry is built from.
- At least one meaningful measured or observed result: a weight, a time, a texture, a behavior, a problem. No empty shell pages.
Incomplete historical tests may still be published as Historical Test (Partial Data), and the record explicitly states what was recorded and what was not. A record is never marked Complete when critical results are pending.
The Tested Rehydration Ratio
The Lab's rehydration ratio is Water Added divided by Dry Food Weight. Example format: 100 g of dry food plus 250 g of water gives a ratio of 250 divided by 100, a 2.5:1 ratio. That example describes the formula only and applies to no food.
The label Tested is used only where actual measured data exists from a documented rehydration test. Everywhere else on the site, a rehydration figure is labeled Calculated Starting Rehydration Estimate or General Guidance, never Tested. Right now, no Tested ratio exists on this site.
Photo Authenticity
Photographs of actual tests are identified as such. When a record includes a real photo from the test, the caption says Actual Test Photo and the photo matches the record's product, machine and batch. No stock imagery is ever presented as a test, and no photograph implies a test that did not happen. Because no test records are published yet, no Actual Test Photo appears on this site.
Illustrative or atmospheric imagery elsewhere on the site is always generic and never carries a Lab label, a Test ID or a data caption.
Corrections & Versioning
Corrections Policy
When an error is found, the value is corrected, dependent calculations are recalculated, and the correction is recorded internally with the date and reason. The test keeps its original Lab ID: a correction never becomes a new test. Re-running the same product for new evidence is a separate, new experiment with its own ID.
Versioning
Material changes to a record are kept in a simple edit history: what changed, when and why. Minor copy edits do not create new versions. The published record always matches the version shown.
Data Confidence Fields
Every record carries a data confidence field. It describes record completeness only, never scientific quality, and is not a score.
Complete Data
The critical fields for this test were captured: weights, times and the main result, with supporting observations.
Partial Data
Some critical fields were recorded but others were missed or lost, and the record says exactly which.
Limited Data
Only a small amount of information was captured, such as a photo set or a single observation. Published only with the limits stated.
Source Records & Privacy
Every published record is built from a real source record: a manual batch log, a spreadsheet, an uploaded report, a photo set, a video or machine notes. Source records are kept private and are never published in full, including for Public records.
A source record may also carry Food-Safety Process Notes, such as whether the product was cooked before drying, that the product was raw, or that sanitized equipment was used, but only where that information was actually documented for the batch. No food-safety process note is ever invented or implied from a Level or Lab record.
Client tests carry one of three privacy levels:
Public
The record can be published with full product and process detail, with all privacy restrictions respected.
Anonymized
The record is published with client identity, location and any identifying details removed.
Private
The record exists in the Lab archive but is never published. Client information is never exposed automatically.
Client information is never exposed automatically. Proprietary recipes, ingredient ratios, production pricing and client identities are never disclosed unless the client approves that specific disclosure in writing.
Prepared by: Just Freeze Drying Editorial Team Operated by: WeFreezeDryIt Based on: WeFreezeDryIt operating experience / Lab testing Evidence: General Guidance (Lab methodology document)