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How should pharmaceutical gelatin be stored and handled?
Beyond Biopharma · Pharmaceutical Gelatin FAQ
Short answer: Pharmaceutical gelatin should be stored in a cool, dry place, in tightly sealed original containers, away from direct sunlight, high humidity, strong heat and sources of odour or contamination. It should be kept dry and free from damp and condensation, and stock rotated first-in, first-out so older material is used before newer. Containers should be re-sealed carefully after every removal, and handling should avoid introducing moisture, dirt or foreign material into the balance of a lot.
Why storage discipline matters
Gelatin is a hygroscopic protein. Left to pick up moisture, cool too slowly, or sit near heat or odours, it can change in ways that matter to a capsule or coating line. Moisture gain is the most common concern because it affects how gelatin flows, dissolves and forms a film, and it can make capsule or softgel shells brittle, sticky or hard to process. Good storage protects the functional and quality properties that a batch was tested for, so it protects the investment and the final product.
Core storage conditions
| Condition | Why it matters |
|---|---|
| Cool temperature | Avoids softening, caking and accelerated ageing; moderate, stable temperature is preferred |
| Low humidity | Keeps moisture low so the gelatin does not absorb water and lose its flow or film properties |
| Sealed containers | Keeps out moisture, dust and foreign material between uses |
| Away from heat and sunlight | Direct heat and UV can degrade the material and its functional properties |
| Away from odours | Gelatin can absorb surrounding odours, which is undesirable in a pharmaceutical context |
Handling during use
How a batch is handled between openings matters as much as the initial storage environment:
- Take only what is needed and re-seal the container promptly and tightly.
- Keep tools and containers clean, dry and free from traces of other materials.
- Do not pour back unused material into the main container if it may have been contaminated.
- Handle with clean, dry gloves and avoid skin-contact contamination of the excipient.
- Keep the area free from dust, chemicals and cross-contamination with other ingredients.
Where a container is opened and material is removed over several weeks or months, consider recording the opening date and using opened stock before unopened stock to limit the window in which moisture or contamination could occur.
First-in, first-out rotation
Because pharmaceutical gelatin is a dated material with a shelf life, stocks should be rotated so that older lots are used before newer ones. This is usually done by clearly labelling receiving dates and following a first-in, first-out policy. Rotation keeps stored material comfortably within its shelf life at the point of use and reduces the risk of material ageing past its optimum without being noticed.
What to watch during inspection
Before a lot is committed to production, a quick visual and odour check is worthwhile. Look for signs of moisture ingress such as dampness, discolouration, caking or an unusual odour, and compare the material against what the certificate of analysis describes. Any material that appears compromised should be quarantined and reviewed rather than used on assumption, and the supplier should be consulted if a concern appears while still in its dated window.
A practical summary
The guiding rule is to keep pharmaceutical gelatin dry, cool, clean and clearly aged. In practice that means sealed original packaging, a cool dry storage room, careful re-sealing between uses, and disciplined first-in-first-out rotation. Because suppliers may give more specific storage guidance for a particular grade, always confirm the exact storage conditions with the certificate of analysis, the container label or the supplier and follow them accordingly.
