Top positive review
5.0 out of 5 starsCold as fridge from 9.00am until past 7.30pm - surprised and very pleased
Reviewed in the United Kingdom on 17 August 2021
Spent the day cycling, so no coolbox or any insulated container. Packed our picnic inside a carrier bag then into a dry bag by 9.00am, then put in my pannier with 6 cooling slabs. While out opened the food package several times and also the pannier several times in addition, so there was some heat ingress into and around the food package as well as the warm air movement around bike ( Most of the day was 20 - 22 degrees C.). I expected the cool slabs to stay cool a couple of hours at the most, in these real life conditions.
Was really impressed the last of the food was still fridge cold when I got home at 7.30pm, plenty cold enough not to worry about putting the unused food back in the fridge rather than throwing it away. I could have perhaps got away with using less slabs and got a lighter load to pedal about, but it was my first go at using chill packs and I did not fancy food poisoning!
Surprisingly when I picked up the slabs to refreeze, they were still so cold it was uncomfortable to hold them for long in my hand. I have not used any chill packs before, so maybe they all last this long, but I was impressed,
Given the length of chill time, I would imagine they might be good wrapped in a towel or blanket for my pets to lie/near on if we have another heat wave. I have just ordered another set so I can try this out. It would be too cold for a pet without some kind of wrapping and too hard a surface. I hope this works out as my cat retreated to the bathroom sink, the china was the coldest surface he could find earlier this year.
If you want a particular size, check the specifications. When i was trying to decide what brand to get, I realised sizes varied a lot from the image in the photos. These were a bit smaller than they looked in the photos and quite slim but that was a good thing for me.