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Old 09-15-2011, 06:25 PM   #1
LuellingBrew
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Default Pot welding

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

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Old 09-15-2011, 06:26 PM   #2
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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.
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Old 09-15-2011, 09:16 PM   #3
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You're going to boil it or whatever is in it so you're fine.

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Old 09-16-2011, 06:23 AM   #4
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Thank you! I didn't know if without grinding and polishing it may allow harbor of bacteria!

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Old 09-16-2011, 03:41 PM   #5
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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).

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Old 09-16-2011, 08:18 PM   #6
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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).
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Old 09-16-2011, 09:05 PM   #7
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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
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Old 09-16-2011, 09:23 PM   #8
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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!
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