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General Philatelic/Gen. Discussion : How do get rid of the mildew smell?

 

Author
Postings
Sarge

19 Jun 2025
04:18:49pm
I recently acquired a 22lb box lot that has the smell of mildew in some of the material that came in the lot. For instance old album pages and a couple of album binders that could be very useful to someone if I get rid of the smell. The lot is one of those that was subjected to high humidity through out an undetermined number of years.

I have decided to try placing some of the items in a plastic container and pack with news paper to absorb the odor.

I also plan on trying another experiment with some charcoal briquets in a plastic container.

Then as another experiment I'll try using a fabric softener sheet in a plastic container.

I know how difficult killing mildew spores is.

What are some recommended methods from all you SOR experts. Share with us some first hand experience.

Jeremy
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mbo1142
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I thought I was wrong once, but I was mistaken.

19 Jun 2025
05:08:11pm
re: How do get rid of the mildew smell?

Jeremy,

Not sure about mildew spores, but I have used with cigarette smoke. If you have a clothes dryer that you can put a rack in, then lay the albums, etc. on the rack, place dryer sheets in dryer and turn on. Let run for awhile.

See if that works.

Mel

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PhilatelistMag20
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Stamp Collecting, What A Wonderful Hobby! :)

19 Jun 2025
05:37:54pm

Approvals
re: How do get rid of the mildew smell?

The LAST thing I would do is spary fabric softener!
Not just that it irritates peoples eyes, including mine.
I find it damages stamps, and sometimes have to return them if they smell like air-freshener and fabric softener.
Againg, only in EXTREME cases, do I have to do so.
Scents have bothered me forever!
Now, to get rid of mildew, had some bad album pages.
i made em into a lot, when I cleaned them up.
Got rid of 80% of the smell, just putting it next to an air purifier for 2-3 weeks, that worked, but took forever.
EDIT:
It is not just the smell.
I got a batch of stamps once on ebay that someone must've actually sprayed. They were curled and warped!
Had to return them.

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mbo1142
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I thought I was wrong once, but I was mistaken.

19 Jun 2025
06:23:18pm
re: How do get rid of the mildew smell?

Never said to spray fabric softener. Simply said to use a couple of dryer sheets. Never had a problem with item smelling like fabric softener. But did diminish the cigarette smoke smell.

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Sarge

23 Jun 2025
06:12:53pm
re: How do get rid of the mildew smell?

The experiments are complete. Here are my findings.

The newspaper will work but takes the longest. I'm sure that it will work faster in small batches of material.

The charcoal briquet was a bust. It just didn't work at all.

The fabric softener/dryer sheet worked very well.

So we have a winner. The dryer sheet.

Jeremy


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1899
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23 Jun 2025
09:35:06pm
re: How do get rid of the mildew smell?

I really thought the charcoal briquet would work better than it did.


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1899
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23 Jun 2025
09:46:16pm
re: How do get rid of the mildew smell?

I don't know if what I found on Youtube really works or not, thought I'd pass it on.

On Youtube search for "Getting Smells out of Old Paper".


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johnsim03
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Frugal Philatelist

26 Jun 2025
06:28:44am
re: How do get rid of the mildew smell?

The below method has worked well for me.

1. Use some baking soda to partially fill a small(ish) bowl. Do not cover the bowl.
2. Take the (mildew smelling) album, stock book, pages, whatever, and place it horizontally in a small trash bag (in one stack).
3. Place the trash bag horizontally somewhere on the floor.
4. Place the bowl with the baking soda off to the side of the article mentioned in #2 above (inside the trash bag).
5. Close the draw strings of the trash bag so that there is an airtight seal.
6. Leave alone for a minimum of 2 weeks (a month is better).
7. Repeat as necessary.

John

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"Editor, A Stamp For Every Country: Postage Stamp Album - Comprehensive (ISBN 979-8727933930)"
johnsim03
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Frugal Philatelist

26 Jun 2025
11:15:59am
re: How do get rid of the mildew smell?

A thousand pardons - I gave my above post a thumbs up by mistake. My apologies!

John

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"Editor, A Stamp For Every Country: Postage Stamp Album - Comprehensive (ISBN 979-8727933930)"
        

 

Author/Postings
Sarge

19 Jun 2025
04:18:49pm

I recently acquired a 22lb box lot that has the smell of mildew in some of the material that came in the lot. For instance old album pages and a couple of album binders that could be very useful to someone if I get rid of the smell. The lot is one of those that was subjected to high humidity through out an undetermined number of years.

I have decided to try placing some of the items in a plastic container and pack with news paper to absorb the odor.

I also plan on trying another experiment with some charcoal briquets in a plastic container.

Then as another experiment I'll try using a fabric softener sheet in a plastic container.

I know how difficult killing mildew spores is.

What are some recommended methods from all you SOR experts. Share with us some first hand experience.

Jeremy

Like
Login to Like
this post
Members Picture
mbo1142

I thought I was wrong once, but I was mistaken.
19 Jun 2025
05:08:11pm

re: How do get rid of the mildew smell?

Jeremy,

Not sure about mildew spores, but I have used with cigarette smoke. If you have a clothes dryer that you can put a rack in, then lay the albums, etc. on the rack, place dryer sheets in dryer and turn on. Let run for awhile.

See if that works.

Mel

Like
Login to Like
this post
Members Picture
PhilatelistMag20

Stamp Collecting, What A Wonderful Hobby! :)
19 Jun 2025
05:37:54pm

Approvals

re: How do get rid of the mildew smell?

The LAST thing I would do is spary fabric softener!
Not just that it irritates peoples eyes, including mine.
I find it damages stamps, and sometimes have to return them if they smell like air-freshener and fabric softener.
Againg, only in EXTREME cases, do I have to do so.
Scents have bothered me forever!
Now, to get rid of mildew, had some bad album pages.
i made em into a lot, when I cleaned them up.
Got rid of 80% of the smell, just putting it next to an air purifier for 2-3 weeks, that worked, but took forever.
EDIT:
It is not just the smell.
I got a batch of stamps once on ebay that someone must've actually sprayed. They were curled and warped!
Had to return them.

Like
Login to Like
this post

www.philatelistmagaz ...
Members Picture
mbo1142

I thought I was wrong once, but I was mistaken.
19 Jun 2025
06:23:18pm

re: How do get rid of the mildew smell?

Never said to spray fabric softener. Simply said to use a couple of dryer sheets. Never had a problem with item smelling like fabric softener. But did diminish the cigarette smoke smell.

Like
Login to Like
this post
Sarge

23 Jun 2025
06:12:53pm

re: How do get rid of the mildew smell?

The experiments are complete. Here are my findings.

The newspaper will work but takes the longest. I'm sure that it will work faster in small batches of material.

The charcoal briquet was a bust. It just didn't work at all.

The fabric softener/dryer sheet worked very well.

So we have a winner. The dryer sheet.

Jeremy


Like 
3 Members
like this post.
Login to Like.
Members Picture
1899

23 Jun 2025
09:35:06pm

re: How do get rid of the mildew smell?

I really thought the charcoal briquet would work better than it did.


Like
Login to Like
this post
Members Picture
1899

23 Jun 2025
09:46:16pm

re: How do get rid of the mildew smell?

I don't know if what I found on Youtube really works or not, thought I'd pass it on.

On Youtube search for "Getting Smells out of Old Paper".


Like
Login to Like
this post
Members Picture
johnsim03

Frugal Philatelist
26 Jun 2025
06:28:44am

re: How do get rid of the mildew smell?

The below method has worked well for me.

1. Use some baking soda to partially fill a small(ish) bowl. Do not cover the bowl.
2. Take the (mildew smelling) album, stock book, pages, whatever, and place it horizontally in a small trash bag (in one stack).
3. Place the trash bag horizontally somewhere on the floor.
4. Place the bowl with the baking soda off to the side of the article mentioned in #2 above (inside the trash bag).
5. Close the draw strings of the trash bag so that there is an airtight seal.
6. Leave alone for a minimum of 2 weeks (a month is better).
7. Repeat as necessary.

John

Like 
2 Members
like this post.
Login to Like.

"Editor, A Stamp For Every Country: Postage Stamp Album - Comprehensive (ISBN 979-8727933930)"
Members Picture
johnsim03

Frugal Philatelist
26 Jun 2025
11:15:59am

re: How do get rid of the mildew smell?

A thousand pardons - I gave my above post a thumbs up by mistake. My apologies!

John

Like
Login to Like
this post

"Editor, A Stamp For Every Country: Postage Stamp Album - Comprehensive (ISBN 979-8727933930)"
        

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