How sensitive is unopened Huel powder to storage in high temperatures? Thinking about travelling in high summer with supplies of Huel, but in a vehicle parked up it’d get very hot… anyone had experience of storing Huel in hot places? How long would be too long? I’d like to think it could stand several weeks whilst unopened but maybe that’s too much. Has there ever been any factory testing done?
Thanks for any advice. 
Hi – any food – even unopened shelf stable foods – are sensitive to storage in heat. As you say, temperatures in cars left in the sun climb much higher than outside temperatures. Ordinarily you should never be storing ANY food in sustained temperatures of more than 25°C.
I live in the tropics so even driving home from the store I have had fresh foods spoil on the journey if I get stuck in traffic. I learned from that never to put the groceries in the trunk.
There are many variables that contribute to it, but you could say that for a powdered food like Huel, its shelf life reduces by an average of 30% for every 10°C increase over 25 degrees.
The coolest part of your car is the footwell behind the passenger and drivers seats. So the best option would be to keep it in a cheap polystyrene cool box in that area and if possible put a small bag of ice in there whenever you get the chance to buy one from a store. Park your car in the shade when you can and if it’s safe to do so, leave a window or sunroof partially open to let hot air vent out of the car.
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Thanks Phil, that’s very helpful. I was hoping I could stack up several bags and take off with all food needs covered, but for a really long trip of several weeks in hot weather, maybe not so good. The 30% reduction at 35* is v useful to know. Cheers.
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