GLPHubglpresearchhub.com
Read-only archive. GLP Research Hub is a static community record — nothing here is for sale, no account is needed, and no vote you cast is counted. Why?
Single comment threadYou are looking at one branch of [Discussion] cold chain is doing more work than we give it credit for — 51 comments in the full submission. View in context.
1.5k
c/coldchain·submitted 1 months ago by u/sequence_checker

[Discussion] cold chain is doing more work than we give it credit for

Discussionbranch of 6 comments

The title is the argument: cold chain is doing more work than we give it credit for. Here is the rest of it. Lyophilisation removes the water that drives most degradation pathways. That is why the dry cake is comparatively robust and the reconstituted solution is not. Seasonality, which the source-page lane tables…

Read the full submission and all 51 comments →

This branch

6 comments, started 1 months ago
u/isabela_nilsen28 points·1 months ago

Asked FGP which lines they hold regionally and got a straight list back. That answered my summer ordering question completely.

replysharereportpermalink
u/tomas_lokken11 points·1 months ago

I would not freeze it in solution. That is a different failure mode and a worse one.

replysharereportpermalink
u/kian_ekstrom7 points·1 months ago

I would not freeze it in solution.

Disagreeing with this line only: freezing a reconstituted vial is not a safe default.

replysharereportpermalink
u/chidi_yilmaz4 points·1 months ago

Small fix — refrigerated, not frozen, once it is in solution.

replysharereportpermalink
u/vito_chowdhury16 points·1 months ago

Moved everything off the fridge door after reading a thread here and my temperature log immediately got boring.

replysharereportpermalink
u/emil_marchand7 points·1 months ago

transit temperature is a distribution, not a number

replysharereportpermalink

← back to the whole thread

About c/coldchain

Temperature and stability in the real world: what an excursion actually costs you, why lyophilised powder is far more forgiving than reconstituted solution, how to read a logger CSV, and how to photograph a failed shipment so the conversation with the vendor is short.

27kmembers
95submissions
Oct 2023created
submissions / month, last year
Sponsored

Sigma-Aldrich Standards

Certified reference materials for peptide identity and purity work.

sigmaaldrich.com
More in c/coldchain
c/coldchain rules
  1. Excursion claims need a logger trace or a photo taken at unboxing. "It felt warm" is not data.
  2. No tracking numbers, ever. They identify you and the recipient.
  3. Stability claims need a source or an explicit "this is my guess" label.
  4. Independent community. Nobody here sells anything, and anyone who tries is banned.
  5. Not medical advice. Describe what you did; never prescribe to a stranger.
  6. Claims need evidence. Batch numbers, dated screenshots, independent test reports, or a citation.
  7. No referral links, discount codes or affiliate URLs. Permanent ban, no appeal.
  8. No contact handles, wallet addresses or tracking numbers — they identify people.
  9. Be recognisably decent. Disagree hard, insult nobody.
Full rules and how they are enforced →
Moderators
u/mod_cold_roomu/coldchain_karenu/ice_pack_auditu/usb_logger_ursula
Volunteers. Unpaid, unaffiliated, and reachable through modmail only.
Before you read on

Several compounds discussed on GLP Research Hub are sold for research use only and are not approved for human use anywhere. Nothing here is medical advice and none of it is written by your clinician. If a post reads like an instruction, treat it as a description of what one stranger did.

Full disclaimer →