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South Africa’s diesel price is heading for one of the largest monthly increases in history, effective April 1. TFC’s fuel surcharge policy has been formally activated at Tier 1 — R10 per stop in Gauteng, R5 in the Western Cape — effective 17 March 2026. Here is what you need to know.
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Self-contained refrigeration systems mounted on vehicles, trailers, or shipping containers, providing active temperature control independent of vehicle operation. TRUs include compressors, condensers, evaporators, controls, and power sources (typically diesel engines…
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Flat packs freeze 4× faster than deep tubs. Fourier’s law proves it. Your packaging geometry is the single most controllable variable in freezing quality — and most producers choose it based on shelf aesthetics, not physics.
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The temperature of the surrounding environment in which refrigeration equipment operates, serving as the heat sink for condenser heat rejection and determining the thermal load that refrigeration systems must overcome.…
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A lasagne, chicken à la king, and bobotie are three different engineering challenges. Each contains ingredients with conflicting thermal properties. Most producers freeze them identically. Here is what the physics demands instead.
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Your chicken breast, your gravy, and your rice respond to freezing as differently as infantry, cavalry, and artillery respond to terrain. Understanding each element’s nature is the foundation of freezing mastery.
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The physics of ice crystal formation determines whether your frozen product survives transit. Fast freezing creates tiny crystals that preserve texture. Slow freezing creates cell-destroying giants. Here is the complete science — nucleation theory, the critical zone, crystal growth kinetics, and the 30-minute rule that separates professional frozen food from an expensive mistake.
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Your temperature log shows perfect transit. Your product still arrived damaged. The crime scene is in the factory. We explain the physics that determines frozen food quality before any courier arrives.
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A premium freezing technology where individual food items (berries, vegetables, seafood, etc.) are frozen separately using blast freezing or cryogenic methods before bulk packaging. IQF products don’t clump together, allowing…
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Every multi-stop delivery route subjects your product to 15–40 temperature fluctuations. If your product was properly blast frozen, it survives. If it wasn’t, transit finishes what your domestic freezer started. 770,000 km of evidence from South African routes.