Journal profile · Physiology
Cryoletters
ISSN 0143-2044 · Cryo-Letters · ENGLAND · Bimonthly · Founded 1979
Cryoletters: CAS Zone 4 · Biology (2025 upgraded edition); impact factor 1.01; hybrid open access; APC charged, amount not published; review about 1 month (community reports); community-reported acceptance: about 75%; 43 articles in 2025; indexed in SCIE and Scopus.
Scope
Aims, scope and focus
Cryoletters is published by Cryo-Letters and is in Zone 4 of Biology in the CAS Journal Ranking (2025 upgraded edition). By OpenAlex counts of its recent articles, its largest topics are Reproductive Biology and Fertility, Sperm and Testicular Function and Plant tissue culture and regeneration, together about 54.7% of its articles. Its main subfields are Reproductive Medicine. (generated from OpenAlex topic counts and CAS ranking data)
A bimonthly international journal for low temperature sciences, including cryobiology, cryopreservation or vitrification of cells and tissues, chemical and physical aspects of freezing and drying, and studies involving ecology of cold environments, and cold adaptation. The journal publishes original research reports, authoritative reviews, technical developments and commissioned book reviews of studies of the effects produced by low temperatures on a wide variety of scientific and technical processes, or those involving low temperature techniques in the investigation of physical, chemical, biological and ecological problems. CryoLetters aims to maintain a broad view of low temperature sciences. Whilst a high proportion of the papers report on cryobiology or cellular aspects of freezing, cryopreservation or vitrification, the journal also embraces studies which bridge disciplines and may not suit the narrow specialisms of other journals. Reports on physical and chemical processes after freezing or at low temperatures are published, where they have particular applications in cryobiology or cryo-technology. Aspects of natural temperature acclimatisation and hibernation, from the cellular level to the whole organism, are welcome, as are scientific studies of supercooling and vitrification in natural systems. Studies of the many other adaptations of life in cold climates are also clearly within the journal's remit. Full-text Free Access Content CryoLetters supports the ethos of sustainable open access whereby papers can be provided free to end users within a forward-looking publications strategy. Free Access papers (from 2000 onwards) can be accessed via Ingenta Connect. Go to the Ingenta Cryoletters page and scroll down to find the Free Access papers. Ingenta Connect
From the journal's Aims & Scope
Research area (LetPub): Physiology
Editorial board by country: 2 in mainland China (about 8%); most named United Kingdom 6, United States 5, Mainland China 2, Canada 2, South Korea 1 (24 members with a country) Editorial board ↗Publisher website ·
Main research topics OpenAlex counts of recent articles; shares are approximate
- Reproductive Biology and FertilityMedicine21.7%
- Sperm and Testicular FunctionMedicine18.1%
- Plant tissue culture and regenerationBiochemistry, Genetics and Molecular Biology14.9%
- Seed Germination and PhysiologyAgricultural and Biological Sciences11.5%
- Reproductive biology and impacts on aquatic speciesBiochemistry, Genetics and Molecular Biology9.8%
- Plant Reproductive BiologyBiochemistry, Genetics and Molecular Biology2.5%
- Ovarian function and disordersMedicine2.3%
- Physiological and biochemical adaptationsEnvironmental Science1.7%
Rankings & indexing
CAS ranking and database indexing
CAS Journal Ranking
CAS Journal Ranking, upgraded edition (March 2025)Biology Zone 4
| Level | Category | Zone |
|---|---|---|
| Major | Biology | Zone 4 |
| Minor | Biology | Zone 4 |
| Minor | Physiology | Zone 4 |
Top journal: noReview journal: no
CAS Xinrui Journal Ranking (March 2026)Biology Zone 4
| Level | Category | Zone |
|---|---|---|
| Major | Biology | Zone 4 |
| Minor | Biology | Zone 4 |
| Minor | Physiology | Zone 4 |
Top journal: noReview journal: not marked
CAS Journal Ranking, previous upgraded edition (December 2023)Biology Zone 4
| Level | Category | Zone |
|---|---|---|
| Major | Biology | Zone 4 |
| Minor | Biology | Zone 4 |
| Minor | Physiology | Zone 4 |
Top journal: noReview journal: no
Database indexing
SCIEScopusLetPub
International journal early-warning lists: not listed in any editionLetPub
Editions, and major and minor categories, are shown separately and never merged into one zone; check which edition your institution uses before you submit or report.
Metrics
Impact metrics and publication volume
Impact
- Impact factor
- 1.01LetPub ·
- CiteScore 2026-06
- 1.9LetPub ·
- SJR 2026-06
- 0.24LetPub ·
- SNIP 2026-06
- 0.4LetPub ·
- h-index
- 42LetPub ·
- h-index
- 26OpenAlex ·
- i10-index
- 68OpenAlex ·
- 2-year mean citedness
- 1.18OpenAlex ·
- Self-citation rate
- 10%LetPub ·
- Share of gold OA articles
- 18.25%LetPub ·
Volume
- Articles per year
- 40LetPub ·
Articles by year OpenAlex count · 307 in total · the current year is incomplete
| Year | Articles | Open access | Citations |
|---|---|---|---|
| 2026 | 22 | 9 | 3 |
| 2025 | 43 | 10 | 34 |
| 2024 | 50 | 7 | 99 |
| 2023 | 44 | 7 | 180 |
| 2022 | 44 | 9 | 178 |
Sources count differently and were observed at different times, so each source's own value is kept; "publisher" marks figures from the journal's website.
Review & acceptance
Review time and acceptance
- Average review time (community reports)
- about 1 monthLetPub ·
- Average acceptance (community reports)
- 75%LetPub ·
- Peer review
- Single-anonymous peer reviewPublisher website · model-extracted
Community reports come from authors' own submissions (confidence 0.5) and are not a promise from the journal; for publisher figures, the journal's own definitions apply.
Fees & open access
APC and open-access policy
Hybrid open accessLetPub
A subscription journal in which authors can pay to publish their article open access.
| Source | APC | Fee waiver | License | Observed |
|---|---|---|---|---|
| Publisher website | EUR 600 | — | — |
A hybrid journal charges the APC only when the author chooses open access; publishing under the subscription model is usually free.
The journal's website is authoritative for fees; sources were observed at different times and each keeps its own value, without averaging.
Submission
Article types and submission policies (journal website)
What to prepare7 items from the author guidelines
- Abstract
- ≤ 250 words
- Keywords
- ≤ 6
- Reference style
- Numbered, in order of citation
- Templates
- Word
- First submission
- Free format: the journal's layout is not required
- Graphical abstract
- Required
- Cover letter
- Required
Article types accepted2
- perspective articlesPERSPECTIVE articles are timely, insightful reviews. The topics are agreed with the Executive Editor in advance. These reviews should be about 12+ pages long an…Length not stated
- research articlesResearch articles must be concise, and preferably around 10 – 12 pages long, including Figures, Tables and References.Length not stated
Policy excerpts from the journal's websitePublication ethics
- Publication ethics
Animal experiments must conform to European Convention on the use of Experimental Animals and the Directive that seeks to implement it. Model summary
All experimental work involving animals should conform to European Convention on the use of Experimental Animals and the Directive that seeks to implement it.
Source ↗Publisher website ·
Excerpts are quoted from the journal's website; "model summary" lines are written by Workers AI and checked against the text. The journal's website is authoritative.
Profile
Publication details and official links
- Publisher
- Cryo-Letters
- Country or region
- ENGLAND
- Language
- Multi-Language
- Frequency
- Bimonthly
- Founded
- 1979
- ISSN
- 0143-2044
- Latest issue on the website
- Volume 47, Issue 5 (October 2026)
- Official links
- Journal homepage ↗LetPub
- Submission system ↗LetPub
FAQ
Frequently asked questions about Cryoletters
What CAS zone is Cryoletters in?
In the 2025 upgraded edition of the CAS Journal Ranking, Cryoletters is in Zone 4 of Biology, and in Zone 4 of the minor category Biology / Physiology. In the 2026 Xinrui edition it is in Zone 4 of Biology. Zones from different editions, and from major and minor categories, are not interchangeable.
What is the impact factor of Cryoletters?
The latest impact factor listed by LetPub is 1.01; CiteScore 1.9, h-index 26.
How long does peer review take at Cryoletters?
Authors report an average review time of about 1 month; the community-reported acceptance is “about 75%”. Article statistics cover accepted papers only, publisher figures follow the journal's own definitions, and community reports come from authors' own submissions; none is a promise from the journal.
What are the manuscript requirements of Cryoletters?
According to the journal's author guidelines: Abstract: ≤ 250 words; Keywords: ≤ 6; Reference style: Numbered, in order of citation; Templates: Word; First submission: Free format: the journal's layout is not required; Graphical abstract: Required; Cover letter: Required. A model extracted these from the author guidelines and each was checked against the text; check the latest version on the journal's website before submitting.
Where are the editorial board members of Cryoletters based?
Of the 24 board members whose country the journal's board page names, 2 (about 8%) are in mainland China; the countries named most often are United Kingdom (6), United States (5) and Mainland China (2). Counted from the institutions listed on the board page; for reference only.
Which databases index Cryoletters?
According to LetPub and DOAJ records, Cryoletters is indexed in SCIE and Scopus.
Is Cryoletters open access, and what is the APC?
Cryoletters is a hybrid journal. For open-access publication: APC charged, amount not published.
Sources and updates
The facts on this page come from LetPub, OpenAlex, Publisher website; every figure is tagged with its source and the date it was observed, and conflicting values are kept per source. LetPub source page: view ↗ (archived 2026-08-26). Last updated: .