Shock freezing: How to preserve the freshness of food
Freshness is not just about taste; it is also about health benefits. That is why at Frostix, we choose shock freezing for our meals. This technology allows us to "stop time" for a product: preserving its structure, natural flavor, and vitamins without preservatives or compromises.
In this article, we will explain how shock freezing works, why it is better than a conventional freezer, and how food remains truly fresh after thawing.
How the technology works
Shock freezing is the ultra-fast cooling of products at temperatures from -30 °C to -45 °C. While food freezes in a conventional freezer over 10 hours, here it takes only 30-90 minutes.
The main difference lies in the size of the ice crystals. During slow freezing, water turns into large crystals that rupture the cells of meat or berries. Shock freezing forms microcrystals: they do not damage the tissues, so the product remains juicy and firm after thawing.
Three stages of the process
- Cooling (to 0 °C). Intensive airflow rapidly reduces the product's temperature, preparing it for freezing.
- Pre-freezing (from 0 °C to -5 °C). The main stage. The cooling speed causes 70% of the moisture to turn into ice microcrystals instantly.
- Final freezing (to -18 °C). The temperature is fixed at the level required for long-term storage.
Comparison of freezing methods
| Parameter | Conventional (home) | Shock freezing |
|---|---|---|
| Time | 3-10 hours | 30-90 minutes |
| Ice | Large crystals | Microcrystals |
| Moisture loss | 20-25 % | 2-5 % |
| Vitamins | 70-80 % | 90-95 % |
| Shelf life | Up to 1 month | Up to 6 months |
What are the benefits?
- Natural taste. The product does not turn into "mush." Meat retains its density, and berries keep their shape and aroma.
- More health benefits. Vegetables frozen this way contain more vitamins C and B than "fresh" products that have sat on a store shelf for three days.
- Safety. Rapid cooling prevents bacteria from multiplying in the "danger zone" (from +5 to +60 °C).
- No chemicals. Cold is a natural preservative. Frostix products contain only natural ingredients.
- Time-saving. Most products (vegetables, dumplings, berries) can be cooked straight from the freezer without defrosting.
Debunking myths
- "Frozen means not fresh" In reality, it’s the opposite. Products are frozen at their peak freshness - immediately after harvesting, catching, or cooking. This is when they have the maximum flavor and nutrients.
- "Frozen food contains many preservatives" With proper freezing, preservatives are simply unnecessary. A temperature of -18 °C and below stops bacterial growth and slows down all biochemical processes that cause food to spoil.
How to recognize high-quality freezing
- Meat and fish: stay juicy and retain their natural texture.
- Ready-to-eat meals and dough products: pelmeni, Wareniki and Syrniki do not stick together.
- Berries and vegetables: retain vibrant color and crunch.
- Bakery products: bread and croissants taste like they are fresh from the bakery after reheating.
How to recognize high-quality freezing
- Products are not stuck together. Each piece - whether a berry, vegetable, or dumpling - is individually frozen (IQF technology).
- No snow or ice. There should be no ice crust inside the package, as it indicates temperature fluctuations.
- Vibrant, natural colors. Fruits and vegetables retain their typical shade even after freezing.
We at Frostix use shock freezing to preserve the taste of our dishes. Try our products and see the difference for yourself.
