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 someone explain ice pack to me like I have not read a paper in years — 52 comments in the full submission. View in context.
2k
c/coldchain·submitted 2 years ago by u/meera_sandvik

someone explain ice pack to me like I have not read a paper in years

Failurebranch of 6 comments

The title is the whole question — someone explain ice pack to me like I have not read a paper in years — but here is why I am asking. Asked SGN which lines they hold regionally and got a straight list back. That answered my summer ordering question completely. Kept a vial at room temperature for eleven days by…

Read the full submission and all 52 comments →

This branch

6 comments, started 2 years ago
u/adaeze_weiss21 points·2 years ago

You cannot infer potency from a temperature record. The record tells you what happened to the box; only a test tells you what happened to the material.

replysharereportpermalink
u/ines_lindqvist15 points·2 years ago

Gel packs are designed for a duty cycle. A liquid pack at the end of a longer-than-expected transit is a pack behaving as specified, not evidence of an excursion in the vial.

replysharereportpermalink
u/coldchain_karencold chain13 points·2 years ago

That is the ambient temperature at the destination, not the temperature inside the box. The logger measures the second one.

replysharereportpermalink
u/elodie_kuipers6 points·2 years ago

Same. Door shelf is the worst place in the fridge and it is where everybody puts them.

replysharereportpermalink
u/ilias_steiner4 points·2 years ago

Is this a line they hold in regional stock or is it shipping from origin?

replysharereportpermalink
u/tidy_vialdrawer_watch282 points·2 years ago·edited

powder at room temperature for a few days is usually a non-event

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

Janoshik Analytical

Independent HPLC and mass spec. The number you get is the number they found.

janoshik.comSponsored

GL Biochem (Shanghai)

Custom peptides and amino acids direct from the manufacturer since 1998. ISO 9001 / cGMP. Batch COA every order.

glbiochem.net
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 →