Hot Wrap Question

I was wondering if there are any good alternatives to a hot/warm-up wrap using a warm cloth, what I have noticed is that the wrap only seems warm for a period of about 20 seconds and then after that it feels about room temp., what I’ve been doing is soaking the cloth multiple times but it is beginning to be somewhat of a nuisance, I’ve heard of ppl. Using hot pads and other thing, anyone know a better way to trap the heat? I’ve also heard of that rice sock, sounds like you waste a hell of a lot of rice

Hi. You can reuse the sock full of rice, and rice is really cheap. Another thing you can do is warm up in the shower, just run the water over your penis.

So you put the rice inside the sock and then put it in the microwave?

How much rice is sufficient, and for how long should you nuke it?