It's an ideal method for carrying insulin daily without worrying about carrying it in your bag when it's hot, but when the pouch with the pearls is first placed in water, it swells up too much and is quite difficult to fit into the case and close properly. You have to wait a few hours for the pearls to deflate before you can close the case securely. Ideally, the case should be a little larger. Otherwise, the pearls keep for several days at a temperature sufficient for transporting insulin.
Auto-translated · original in Spanish
Es un método ideal para poder transportar la insulina día a día sin temor a llevarla en el bolso cuando hace calor, pero cuando la bolsa con las perlas está recién metida en agua, se hincha demasiado y es bastante difícil meterla en el estuche y que este cierre. Hay que esperar unas horas a que las perlas bajen de volumen y entonces se pueda cerrar bien el estuche. Lo ideal sería que el estuche fuera un poquito más grande. Por lo demás, las perlas aguantan unos cuantos días con frio suficiente para transportar la insulina.
Good morning, Elena!
Thank you so much for your detailed feedback; it's very helpful. As you correctly point out, the pearls shouldn't soak for more than 50 minutes to 1 hour the first time. If you leave them longer, they absorb too much water, swell excessively, and it becomes difficult to close the case; they could even get damaged. With this specific soaking time, the pouch fits inside and closes easily from the start, without having to wait for hours. For subsequent uses, the soaking time is even shorter (about ten minutes).
We're also pleased that they keep your insulin cold for several days. Thanks again, and please don't hesitate to contact us if you have any questions!
Kaio-Team