Frequently Asked Questions

The Subjee Cooler works on the principle of Enhanced Evaporative Cooling.

No. A Subjee Cooler does not need Electricity / Diesel / Solar / Hybrid / Biomass to operate.  It needs 3-14 litres of clean regular water to operate during Storage & no Water during the natural ripening process.

Yes, you can use water from the borewell.  Make sure that the water should be clean and free from physical impurities like mud, leaf litters or garbage etc.

No, there is no need to apply chilled / refrigerated water to the Subjee Cooler.  The Subjee Cooler is designed in  such a way that it should run on normal, regular temperature, clean water.  Use of regular temperature water serves the purpose.

Yes, the chilled water / refrigerated water brings more cooling but it needs electricity to have chilled water.  We don’t recommend chilled / refrigerated water to operate the Subjee Cooler.

The temperature difference between ambient & within the Subjee Cooler ranges from 5 Degrees Celsius to 21 Degrees Celsius, depending on the season (Monsoon, Winter & Summer) & heat load kept inside the produce.  The temperature ranges between 18-24 degrees Celsius during the No Load condition under a well-ventilated shed.

The cooling starts within 30 to 55 minutes post water application to the Subjee Cooler.

The Subjee Cooler works on the principle of Enhanced Evaporative Cooling.  Here, water & proper ventilation conditions activate the cooling mechanism.  Subjee Cooler consists of a 7 - layered membrane material which comes in contact with water & cooling starts. 

The warranty on the Subjee Cooler is for 3 years (terms and conditions apply).  In the first year, 2 services are free from RuKart.

The backside of the Subjee Cooler has a drainage point to which 0.5 inches connector is attached for drainage of water.  80% of applied water is drained out automatically through gravitational force.  One can place a vessel under the drain connector to collect the water, or one can attach a hose pipe to remove the water. After one month of regular use, the drain water can be reused.

There is no need to apply water to the Subjee Cooler when you are not storing any produce.

No.  As long as the Subjee Cooler is installed under a shed / roof & protected from the direct sunlight, the water in the Subjee Cooler will not heat in summer season due to outside high temperatures.

The drain water will start after 15 to 30 minutes of water application.  It will continue till next 10 to 12 hours.  Initially, flow of the drain water will be high & as time passes the flow will be reduced.  The system is designed in such a way that the utilised & excess water & is drained out from the Subjee Cooler.  

Yes. You can store raw milk in the Subjee Cooler for 6 to 8 hours only.

No. You should not store eggs, meat & fish in the Subjee Cooler.

Yes, you can store cut vegetables, fruits & tamarind in the Subjee Cooler for a short duration, like 2 days.

All types of fruits can be ripened in the Subjee Cooler. The mature fruit on the tree itself ripens there.

Yes. You can store bottled water in the Subjee Cooler.

Yes, if you do not want chilled but normal cooling between 18-24 degrees Celcius. You cannot store Ice Cream, Cold drinks, etc. in the Subjee Cooler.

Yes. The crates supplied with the Subjee Cooler are optimised to store F&V in it.  These crates are ventilated from all the 5 sides & top has a marking upto which you can fill in the produce.

No. You shouldn’t store F&V directly on the floor.

Yes, you can store Mushrooms for 2-4 days in the Subjee Cooler.

The shelf life of a Subjee Cooler is a minimum of 10 Years.