Knowledge Base
Guides, comparisons and buying advice on Rational combi ovens, Hoshizaki refrigeration and setting up a professional kitchen. From JMGT – authorised Rational dealer and Hoshizaki specialist.
iCombi Pro vs. iCombi Classic: which one suits your kitchen?
The biggest difference is not in the cooking result, but in who delivers it: the oven or the chef.
Read moreBuying a combi oven: the complete guide for commercial kitchens
Which brand, which size, electric or gas, new or used? All the questions answered in one guide before you decide.
Read moreRational iCombi Pro vs. competitors: how do they compare?
Convotherm, UNOX, Electrolux SkyLine, MKN: how they stack up against the iCombi Pro on service network and payback.
Read moreCombi oven energy consumption: which brand uses the least?
Real kWh figures per brand and model at identical output. What causes the differences and what it costs per year.
Read moreRational iCombi Pro XS review: the compact that does it all
The compact 6-2/3 for kitchens where every centimetre counts. What's inside, real-world performance and who it's made for.
Read moreHoshizaki Snowflake vs. Premier: which series fits your kitchen?
Both professional, but the Snowflake is built for the harsh conditions that the Premier handles less well.
Read moreIce machine capacity calculation: how much ice does your business need?
Rules of thumb by venue type (cafe, restaurant, hotel, event) plus a calculation model: kg per day by ice type.
Read moreBuying a cold room: 8 points for the right choice
Size, insulation, floor, door, unit, temperature range, monitoring, placement. What goes wrong when you overlook them.
Read moreCold room or refrigerator: what suits your commercial kitchen?
From what volume a cold room makes sense, spatial requirements, HACCP implications and payback comparison.
Read moreHow quickly does a Rational combi oven pay for itself?
Through energy savings, less product loss and staff efficiency – the channels through which customers see payback in 2–4 years.
Read moreHoshizaki maintenance: 12-month checklist for maximum service life
Filters, condensers, water systems: what you do yourself, what the technician does, and how to reach 12–15 years.
Read moreInstalling a combi oven: power, water and drainage requirements
Which connection, water hardness, drainage and clearances. Avoid surprises with this checklist.
Read moreWhat does professional combi oven maintenance cost per year?
Service contract, cleaning agent consumption, descaling, wear parts. Realistic TCO calculation for 5 and 10 years.
Read moreRational Active Clean: how automatic cleaning works
Three programmes (Light/Medium/Strong), water and chemical consumption per cycle, cost per clean and when to use each.
Read moreRational service: what to expect from an authorised dealer
How service and warranty on your Rational works through JMGT as an authorised dealer. No hold music, short lines.
Read moreStaff shortage in hospitality: how smart technology helps
Better equipment doesn't solve the shortage, but it reduces the impact: less expertise needed per cooking step, more consistency per shift.
Read moreWinterhalter vs. Hobart: which dishwasher do you choose?
Two top German brands, different philosophies. Service, energy consumption, service life and payback compared.
Read moreOpening a commercial kitchen: complete checklist (12–16 weeks)
From permits through installation to a cooking demo. What to plan in which week and which mistakes are costly.
Read more