Home Brew Forum

My second attempt at the same recipe... everything has gone pretty well so far (fixed my mash tun which had far too few and small holes causing a stuck sparge) and hopefully fixed my boiler which had a similar problem. It's been boiling for about 30 mins now (an hour to go).

Quick question, the mash temp started at 65 degrees and finished at 60 degrees after 90 minutes. Not great

How will this affect my bear?

Also, what's the best way of improving the insulation of my £7 ASDA mash tun? I did cover item in quite a few rugs, but still got this rather large temp drop.

Thanks!

although its ended up a low temp. it should be ok I think.
several ways to insulate {lots of posts on this site}. I`ve taped a camping mat around the tun and then wrap it in a water tank jacket.

Yeah, camping mat sounds like a good idea. The 21L capacity is a huge PITA... I have to batch sparge 3 times. If I can't get it insulted, I'll probably invest is a better cool box, if I can I'll probably move onto fly sparging.

JackA wrote: Also, what's the best way of improving the insulation of my £7 ASDA mash tun?

Expanding polyurethane foam is what some people use to fill the void in their coolbox and lid.