Frozen & ultra-low · −18 to −60 °C
Deep Freezer in Kolkata
Chest freezers for long-term frozen storage, in hard-top and glass-top builds, plus ultra-low temperature models that hold down to −60 °C for pharma, seafood and specialist stock. In Kolkata, April afternoons average 35.9 °C and humidity averages 77% across the year — here is what that means when you choose and run one.
Checklist for a deep freezer in Kolkata
- Ask for a rated ambient of 43 °C. Kolkata sees roughly 49 days a year above 35 °C, and a deep freezer inside a kitchen or shop runs hotter still.
- Check that the freezer holds −18 °C or colder at 43 °C ambient — many chest freezers lose margin in April, and ice cream softens first.
- Humid air means faster frost build-up every time the lid opens. Keep lids closed, defrost on schedule and check the drain.
- Clean the condenser coil at least monthly; it is the single biggest factor in keeping a unit efficient through summer.
- Give the unit its own earthed socket and ask about its operating voltage range; summer evening voltage dips are hard on compressors.
- For long power cuts, ask about hold-over time — how long the freezer stays below −18 °C with the lid shut.
Show monthly figures
| Month | Avg high °C | Avg low °C | Avg humidity % |
|---|---|---|---|
| January | 25.2 | 13.8 | 71 |
| February | 29 | 17.4 | 67 |
| March | 33.1 | 21.7 | 68 |
| April | 35.9 | 25.4 | 71 |
| May | 34.5 | 26.5 | 77 |
| June | 33.3 | 27.2 | 82 |
| July | 31.5 | 26.4 | 86 |
| August | 31.3 | 26 | 87 |
| September | 31.2 | 25.8 | 87 |
| October | 30.8 | 24 | 82 |
| November | 28.8 | 19.2 | 73 |
| December | 25.7 | 15.3 | 72 |
Kolkata climate, 2016–2025. Source: Open-Meteo Historical Weather API (ERA5 reanalysis), daily data 2016–2025 (Open-Meteo, CC BY 4.0).
Thick PUF walls
High-density insulation that holds through a power cut.
Ultra-low option
R290 systems that reach −60 °C for pharma and seafood.
Lockable lid
Keyed lock and counter-balanced hinges on every model.
Who uses a deep freezer in Kolkata
Before you buy
All guidesQuestions about deep freezers in Kolkata
- Does KALT deliver deep freezers to Kolkata?
- Yes. KALT supplies commercial refrigeration across India, including delivery and installation in Kolkata, West Bengal. Send your requirement and site details and the team will confirm the model, delivery and installation plan with a quote.
- What ambient rating should a deep freezer have in Kolkata?
- Kolkata's hottest month averages 35.9 °C and the hottest days reach about 39.6 °C outdoors; kitchens and shops run hotter. Ask for a unit rated to hold its temperature at 43 °C ambient (climate class T).
- How do I deal with humidity in Kolkata?
- Humidity averages 77% across the year. Keep doors and lids closed, check gaskets, clear the defrost drain, and for glass-fronted units choose heated or double-glazed glass to limit fogging.
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