Cooler loses 10 degrees in an hour. Good enough?

[elmetal]

so for filling the lid with great stuff, do I want to cut a hole in the lid and fill on the inside or just put a layer literally under the lid?

 

[JKoravos]

That may be true, but you can also get the +/- 2 deg if you over mix or under mix your grains. If I notice I am over a bit, I just mix for minute or 2 and the temp drops and stablilizes. I'm just saying that its a pretty easy way to mash in doin it this way, albeit you have to wait a bit for it to reach strike temp.

I agree, it's probably the easiest way to mash-in in a cooler. I have just learned to know a degree or two off my strike water.

 

[cabledawg]

so for filling the lid with great stuff, do I want to cut a hole in the lid and fill on the inside or just put a layer literally under the lid?

I have not used a mash tun before but I would cut a hole in the outside top of the lid and fill. Cutting the hole in the underside of the lid and filling the lid might lead to issues.

 

[wildwest450]

I have not used a mash tun before but I would cut a hole in the outside top of the lid and fill. Cutting the hole in the underside of the lid and filling the lid might lead to issues.

+1, if you just cake it to the underside your going to cut down considerably on your amount of grain and water space.

 

[cabledawg]

Plus if you just spray the underside of the lid, that might add some wicked chemicals to your brew if your wort comes in contact with it.

 

[JesseRC]

I would go to the hardware store and find some plastic plugs. Then drill 4 holes and spray it in via those holes then plug the holes. But seriosly, why not just try a few batches first b4 doing the modifications