Pot welding - Home Brew Forums
Home Brew Forums > Home Brewing Beer > DIY Projects > Kettles, Mash Tuns & Hot Liquor Tanks > Pot welding

Reply
 
Thread Tools
Old 09-15-2011, 06:25 PM   #1
LuellingBrew
Recipes 
 
Aug 2011
Las vegas, Nv
Posts: 24
Liked 2 Times on 2 Posts



My father in law and I drilled holes and welded fittings into my brew pots. Question is 1.) do I need to grind the weld on the inside of the pot? 2.) do I need to polish it? 3.) what about the outside? Are these questions of aesthetics and not functionality and sanitary?

Thank you,
Aaron

 
Reply With Quote
Old 09-15-2011, 06:26 PM   #2
FSR402
HBT_LIFETIMESUPPORTER.png
 
FSR402's Avatar
Recipes 
 
May 2007
Jenison, MI
Posts: 2,827
Liked 23 Times on 17 Posts


Quote:
Originally Posted by LuellingBrew View Post
My father in law and I drilled holes and welded fittings into my brew pots. Question is 1.) do I need to grind the weld on the inside of the pot? 2.) do I need to polish it? 3.) what about the outside? Are these questions of aesthetics and not functionality and sanitary?

Thank you,
Aaron
You don't have to but if you want to it wont hurt anything.
__________________
TWO FISTED BREWING CO.

Quote:
Originally Posted by mr_cad View Post
Its nice when you and your friends have comparable equipment.
Quote:
Originally Posted by Walker-san View Post
some people will tap anything that has a hole.
Buy Two Fisted Brewing gear

 
Reply With Quote
Old 09-15-2011, 09:16 PM   #3
outside92129
HBT_LIFETIMESUPPORTER.png
 
outside92129's Avatar
Recipes 
 
Apr 2011
Carlsbad, CA
Posts: 1,227
Liked 63 Times on 51 Posts


You're going to boil it or whatever is in it so you're fine.

 
Reply With Quote
Old 09-16-2011, 06:23 AM   #4
LuellingBrew
Recipes 
 
Aug 2011
Las vegas, Nv
Posts: 24
Liked 2 Times on 2 Posts


Thank you! I didn't know if without grinding and polishing it may allow harbor of bacteria!

 
Reply With Quote
Old 09-16-2011, 03:41 PM   #5
audger
Recipes 
 
Apr 2011
., Connecticut
Posts: 1,497
Liked 43 Times on 42 Posts


if you are welding sanitary connections that would need to be NSF rated (like for a commercial brewery), yes you would need to weld both sides, gas purged, and have the welds polished to prevent the buildup of crud and bacteria.

for our purposes, most people dont go thru this whole procedure and spend the extra time or money to do it. its certainly a good thing, but the downsides of not doing it can be pretty easily mitigated. you dont really have to worry about it in your boil kettle because it will be sanitized while boiling.

the mash tun, however, could be affected by bacteria durring the mash, so making sure you clean around the welds every time is a good idea. i dont have completely sanitary welds and i have never had a problem (that i noticed). lactobacilius bacteria do not get destroyed at 150-160 degrees, so they can live thru a mash and give you some off flavors. normal cleaning procedures will usually take care of that. PBW or oxiclean will kill most bacteria.

the outside is completely up to you (aesthetics only).

 
Reply With Quote
Old 09-16-2011, 08:18 PM   #6
twanger1994
Recipes 
 
Jan 2007
New Jersey
Posts: 123
Liked 1 Times on 1 Posts


Quote:
Originally Posted by audger View Post
if you are welding sanitary connections that would need to be nsf rated (like for a commercial brewery), yes you would need to weld both sides, gas purged, and have the welds polished to prevent the buildup of crud and bacteria.

For our purposes, most people dont go thru this whole procedure and spend the extra time or money to do it. Its certainly a good thing, but the downsides of not doing it can be pretty easily mitigated. You dont really have to worry about it in your boil kettle because it will be sanitized while boiling.

The mash tun, however, could be affected by bacteria durring the mash, so making sure you clean around the welds every time is a good idea. I dont have completely sanitary welds and i have never had a problem (that i noticed). Lactobacilius bacteria do not get destroyed at 150-160 degrees, so they can live thru a mash and give you some off flavors. Normal cleaning procedures will usually take care of that. Pbw or oxiclean will kill most bacteria.

The outside is completely up to you (aesthetics only).
+1

 
Reply With Quote
Old 09-16-2011, 09:05 PM   #7
deremer
Recipes 
 
Jul 2009
McKinney TX
Posts: 79

Quote:
Originally Posted by audger View Post
if you are welding sanitary connections that would need to be NSF rated (like for a commercial brewery), yes you would need to weld both sides, gas purged, and have the welds polished to prevent the buildup of crud and bacteria.

for our purposes, most people dont go thru this whole procedure and spend the extra time or money to do it. its certainly a good thing, but the downsides of not doing it can be pretty easily mitigated. you dont really have to worry about it in your boil kettle because it will be sanitized while boiling.

the mash tun, however, could be affected by bacteria durring the mash, so making sure you clean around the welds every time is a good idea. i dont have completely sanitary welds and i have never had a problem (that i noticed). lactobacilius bacteria do not get destroyed at 150-160 degrees, so they can live thru a mash and give you some off flavors. normal cleaning procedures will usually take care of that. PBW or oxiclean will kill most bacteria.

the outside is completely up to you (aesthetics only).
I have had a problem with a sour taste in my last 4 batches I have made. I have changed out every thing that touches my wort post boil. Is it possible that I beveloped a bacteria in my plastic mash tun that is giving me this bad taste and smell. I usually just rinse and dry my mash tun. There is no smell or any other thing out of the ordinay with my MLT. And will a soaking of Starsan or Idiopher take care of this, and which one would be better?

Sorry for barging in on your post but I need some help.

Ben

 
Reply With Quote
Old 09-16-2011, 09:23 PM   #8
day_trippr
Recipes 
 
May 2011
Stow, MA
Posts: 17,136
Liked 2916 Times on 2178 Posts


Quote:
Originally Posted by deremer View Post
I have had a problem with a sour taste in my last 4 batches I have made. I have changed out every thing that touches my wort post boil. Is it possible that I beveloped a bacteria in my plastic mash tun that is giving me this bad taste and smell. I usually just rinse and dry my mash tun. There is no smell or any other thing out of the ordinay with my MLT. And will a soaking of Starsan or Idiopher take care of this, and which one would be better?

Sorry for barging in on your post but I need some help.

Ben
You could thoroughly clean your MLT, then sanitize with either Iodophor or Star-San, but it won't be sanitary sitting around 'til your next brew unless you stick it in a sanitized and sealed bag.

In any case, I'd be looking somewhere else for the source of your problem. What other types of equipment does your wort travel through post-boil? If you have a CFC or plate chiller, that'd be a prime candidate, as would a plastic fermenter, followed by the hoses and valves 'tween BK and bottle...

Cheers!

 
Reply With Quote


Reply
Thread Tools



Forum Jump