https://www.betheretrading.com/blog/Cold chain equipment buying guides and technical explainers.enhttps://www.betheretrading.com/blog/cold-room-panel-thickness-guidehttps://www.betheretrading.com/blog/cold-room-panel-thickness-guideTue, 06 Oct 2026 08:00:00 +0800Buying guideUse 75–100 mm panels for chillers (0 °C to +5 °C), 120–150 mm for freezers (−18 °C to −25 °C) and 150–200 mm for blast rooms (−35 °C and below). With a PU/PIR core of λ ≈ 0.022 W/(m·K), going from 100 mm to 150 mm cuts wall heat gain by about a third.https://www.betheretrading.com/blog/blast-chiller-vs-shock-freezerhttps://www.betheretrading.com/blog/blast-chiller-vs-shock-freezerTue, 06 Oct 2026 08:00:00 +0800TechnicalA blast chiller cools cooked food from +70 °C to +3 °C (158 °F to 37 °F) in about 90 minutes using cold, fast-moving air at roughly −10 °C to 0 °C. A shock (blast) freezer continues to −18 °C (0 °F) at the core within about 240 minutes, with air at −35 °C to −40 °C.https://www.betheretrading.com/blog/ice-machine-sizing-guidehttps://www.betheretrading.com/blog/ice-machine-sizing-guideTue, 06 Oct 2026 08:00:00 +0800Buying guideEstimate 1–1.5 kg of ice per seat per day for a restaurant, 1.5–2 kg for a bar and about 2.5 kg per hotel room, add 20% for peaks, then divide by 0.75 if the machine will stand in a hot room. Choose a bin that holds at least half the daily demand.https://www.betheretrading.com/blog/bagged-ice-merchandiser-buying-guidehttps://www.betheretrading.com/blog/bagged-ice-merchandiser-buying-guideTue, 06 Oct 2026 08:00:00 +0800Buying guideSize an ice merchandiser at about 1.4 ten-pound bags per cubic foot, hold it at −12 °C to −6 °C (10–21 °F), choose auto-defrost for retail, and for outdoor sites check the ambient rating, shade, lockable doors and UL/ETL or CE certification.https://www.betheretrading.com/blog/truck-refrigeration-unit-sizinghttps://www.betheretrading.com/blog/truck-refrigeration-unit-sizingTue, 06 Oct 2026 08:00:00 +0800TechnicalWall heat gain ≈ K-value × box surface area × temperature difference. Add door-opening load, then apply a margin (ATP testing uses 1.75× wall heat). A 15 m³ frozen box at −20 °C typically needs about 3 kW of cooling at −20 °C.https://www.betheretrading.com/blog/r290-vs-r404a-display-refrigeratorshttps://www.betheretrading.com/blog/r290-vs-r404a-display-refrigeratorsTue, 06 Oct 2026 08:00:00 +0800TechnicalR290 (propane) has a GWP of about 3 versus about 3,900 for R404A, and regulations in the EU, UK and US are restricting high-GWP refrigerants in new plug-in display cabinets. R290 cabinets are built to IEC 60335-2-89 charge limits and usually use less energy.https://www.betheretrading.com/blog/two-stage-cooling-methodhttps://www.betheretrading.com/blog/two-stage-cooling-methodTue, 06 Oct 2026 08:00:00 +0800Food safetyThe FDA Food Code 2-stage cooling method requires cooked TCS food to cool from 135 °F (57 °C) to 70 °F (21 °C) within 2 hours, and from 135 °F to 41 °F (5 °C) or below within 6 hours in total. The temperature danger zone is 41–135 °F (5–57 °C).https://www.betheretrading.com/blog/types-of-ice-machineshttps://www.betheretrading.com/blog/types-of-ice-machinesTue, 06 Oct 2026 08:00:00 +0800Buying guideThe main commercial ice types are full and half cube (hard, slow-melting, for drinks), crescent and bullet (fast-cooling, dispenser-friendly), nugget or pebble (soft, chewable), flake (dry flakes for food display and processing), snow ice (frozen flavoured milk for desserts) and sphere/ball ice for premium cocktails.https://www.betheretrading.com/blog/air-cooled-vs-water-cooled-ice-machinehttps://www.betheretrading.com/blog/air-cooled-vs-water-cooled-ice-machineTue, 06 Oct 2026 08:00:00 +0800TechnicalAir-cooled ice machines are cheaper to install and use far less water, but they push heat into the room and lose output when the room is hot. Water-cooled machines keep output stable in hot, poorly ventilated rooms but use extra water, and some cities restrict once-through water cooling. Remote air-cooled condensers move the heat outdoors.https://www.betheretrading.com/blog/how-to-clean-a-commercial-ice-machinehttps://www.betheretrading.com/blog/how-to-clean-a-commercial-ice-machineTue, 06 Oct 2026 08:00:00 +0800MaintenanceClean and sanitise a commercial ice machine at least every 6 months, more often with hard water or in dusty kitchens. Empty the bin, run the descaling cycle with a manufacturer-approved nickel-safe cleaner, sanitise all food-contact parts, clean the condenser and replace the water filter.https://www.betheretrading.com/blog/ice-machine-water-filter-guidehttps://www.betheretrading.com/blog/ice-machine-water-filter-guideTue, 06 Oct 2026 08:00:00 +0800MaintenanceAn ice machine water filter removes sediment, chlorine taste and scale-forming minerals before water reaches the evaporator. Size it by flow rate and capacity to match the machine's daily output, install it on the ice machine's inlet only, and replace the cartridge every 6 months or when its rated gallons are used.https://www.betheretrading.com/blog/pir-vs-pu-vs-xps-vs-eps-insulationhttps://www.betheretrading.com/blog/pir-vs-pu-vs-xps-vs-eps-insulationTue, 06 Oct 2026 08:00:00 +0800TechnicalPer inch, PIR/polyiso gives about R-6 to R-6.5, PU about R-6, XPS about R-5 and EPS about R-3.6 to R-4.2. PIR has the best fire behaviour of the foams, XPS the best moisture and load resistance for floors and foundations, and EPS the lowest cost per board.https://www.betheretrading.com/blog/how-to-build-a-walk-in-cold-roomhttps://www.betheretrading.com/blog/how-to-build-a-walk-in-cold-roomTue, 06 Oct 2026 08:00:00 +0800Buying guideTo build a walk-in cold room: confirm size and temperature, prepare a level floor (insulated with heating for freezers), assemble PU/PIR panels from the floor up, fit the insulated door, seal every joint, install the condensing unit and evaporator, then pull down slowly and check temperatures over 24 hours.https://www.betheretrading.com/blog/how-truck-refrigeration-units-workhttps://www.betheretrading.com/blog/how-truck-refrigeration-units-workTue, 06 Oct 2026 08:00:00 +0800TechnicalA truck refrigeration unit runs a vapour-compression cycle: the compressor (driven by the engine, its own diesel engine or electricity) pumps refrigerant to a condenser on the front of the box and an evaporator inside it. 'Reefer fuel' is diesel used to run a trailer's own refrigeration engine, which in the US can be dyed, off-road diesel.https://www.betheretrading.com/blog/glass-door-display-fridge-buying-guidehttps://www.betheretrading.com/blog/glass-door-display-fridge-buying-guideTue, 06 Oct 2026 08:00:00 +0800Buying guideA 1-door glass display fridge is about 0.6–0.7 m wide, 2-door about 1.0–1.2 m, 3-door about 1.6–1.9 m and 4-door about 2.0–2.5 m, all roughly 2 m high. Choose fan-forced cooling, LED lighting, low-E or heated glass, an R290 refrigerant option and the certification your market needs, such as NSF and UL/ETL in the US or CE in Europe.https://www.betheretrading.com/blog/soft-serve-machine-buying-guidehttps://www.betheretrading.com/blog/soft-serve-machine-buying-guideTue, 06 Oct 2026 08:00:00 +0800Buying guideChoose a soft serve machine by peak servings per hour (a tabletop machine makes about 18–22 L/h, roughly 200–250 servings), flavours (two plus twist is standard), hopper refrigeration that holds mix below 5 °C (41 °F), overrun (gravity 30–45%, air pump 50–60%) and your power supply.https://www.betheretrading.com/blog/flake-ice-machine-guidehttps://www.betheretrading.com/blog/flake-ice-machine-guideTue, 06 Oct 2026 08:00:00 +0800TechnicalA flake ice machine freezes water on a refrigerated drum and scrapes it into dry flakes 1.5–2.2 mm thick at about −5 °C to −8 °C. Capacities range from about 300 kg to 20 t or more per day. Seawater models with corrosion-resistant evaporators serve boats and ports.https://www.betheretrading.com/blog/importing-refrigeration-equipment-from-chinahttps://www.betheretrading.com/blog/importing-refrigeration-equipment-from-chinaTue, 06 Oct 2026 08:00:00 +0800Buying guideWhen importing ice machines, freezers or ice cream machines from China, confirm the exact voltage and frequency, refrigerant allowed in your market, required certification (UL/ETL, NSF, CE, SASO), Incoterms, pre-shipment inspection with a run test, spare parts and how the goods fit a container. Get every point written on the proforma invoice.https://www.betheretrading.com/blog/popsicle-business-guidehttps://www.betheretrading.com/blog/popsicle-business-guideTue, 06 Oct 2026 08:00:00 +0800Buying guideA brine-tank popsicle machine freezes 40-stick molds in about 15–25 minutes, so plan on 100–150 popsicles per mold per hour. A small shop starts with a 1–2 mold machine; a small factory uses 4–8 molds plus a mixing tank, pasteuriser, hardening freezer and bag sealer.