DIY partial mash

[Mr. Awesome]

I'm looking for plans to make a home made lauter tun for partial mash brewing. I was thinking something similar to this
https://www.homebrewtalk.com/showthread.php?t=23008

but as I only need it for partial mash I'm sure I don't need 10 gallons. What size should I get?

 

[Yuri_Rage]

What size batch are you making?

What percentage of fermentables do you want from the mash?

Do you aspire to go AG at some point?

 

[Mr. Awesome]

I only make 5 gallon batches, with a 5 gallon (20 quart) brew pot. I have no idea the percentage of fermentables. What is standard? I do want to do AG at some point, but I live in an apartment so I'm limited to what I can do just by how much equipment I can store right now.

 

[Yuri_Rage]

PM recipes vary wildly. There isn't a "standard."

I recommend going with the 10 gallon cooler so you have room for expansion later. If you have a 10 gallon mash tun and a 5 gallon kettle, all you need is another 7.5 gallon kettle to do 5 gallon batch sparged all grain brews.