Humidity Control: DIY Salt Packs

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pedant
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Thu Dec 28, 2017 3:25 am

Mchrlund1 wrote:
Thu Dec 28, 2017 12:59 am
I see, thank you! Just ordered some Tyvek envelopes, looking forward to trying this.
are you in the US?

you can get them from the post office for free.

https://store.usps.com/store/product/sh ... pe-P_EP_14

i think you might even be able to order them for free too..
Mchrlund1
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Fri Dec 29, 2017 1:07 am

pedant wrote:
are you in the US?

you can get them from the post office for free.

https://store.usps.com/store/product/sh ... pe-P_EP_14

i think you might even be able to order them for free too..
I’m not, unfortunately, but ordered some from an online shop. Did try to order from usps just now, but it said ‘service temporarily unavailable’. I guess either because the total came out to $0 (probably have to order something else along with the envelopes), or because I’m overseas... 😉
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pedant
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Sat Dec 30, 2017 8:56 pm

yeah, it's one of the things you can pick up for free from USPS, and they let you order them online as well for free as a courtesy.
i think that since you're overseas, it doesn't let you do that. they aren't going to send you tyvek mailers for free to use with some other postal service :lol:
Diocha5757
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Sat Dec 30, 2017 9:28 pm

Hi for clarification...when u say refill at a glance....the water level is at where???????...
Thanks
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pedant
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Sun Dec 31, 2017 12:11 am

Diocha5757 wrote:
Sat Dec 30, 2017 9:28 pm
Hi for clarification...when u say refill at a glance....the water level is at where???????...
Thanks
i'd refill when the water level is close to the salt
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Oolong_Nug
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Mon Jan 01, 2018 4:41 pm

Wonderful post with great information. I currently use 100% NaCl, and have relatively little experience. Using a cooler, some salt in a bowl, and preparing a pumidor in this fashion. Thus far I have not used it for tea, but am setting it up. If I keep a simple salt solution, I assume this works well enough, no?

On the RH % and mold, if it is possible for growth at 70+% should we be concerned with this in our controlled environments, where moisture is often close to or within this range? I am an absolute neophyte and have very little understanding of these environments, but am no fan of mold.

Cheers,
Nug
Mchrlund1
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Fri Jan 05, 2018 9:40 am

So I finally got around to setting up the experiment. As the mason jars I got were a bit bigger, I thought why not just up the amount of mixture. 200g water heated and mixed with 34g sugar until dissolved, then added 140g of unrefined sea salt and mixed for a bit.

Now, in the instruction part of the op it said “Not all the salt was dissolved”. However, in my case, there’s quite a bit of undissolved salt. Should I make an effort to dissolve most of it, or does it not matter?
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pedant
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Fri Jan 05, 2018 7:15 pm

you should have tons of undissolved salt like in your picture. that is good. you could even have a lot more salt.
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Psyck
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Sat Jan 06, 2018 6:15 am

What are the alternatives to Tyvek envelopes? Would something like muslin cloth work for this purpose?
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tealifehk
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Sat Jan 06, 2018 9:29 am

Psyck wrote:
Sat Jan 06, 2018 6:15 am
What are the alternatives to Tyvek envelopes? Would something like muslin cloth work for this purpose?
In Bangalore man? You can just age naturally!
Diocha5757
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Mon Jan 08, 2018 12:47 am

Sounds sound....no extra sugar..salt...just water...
Diocha5757
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Mon Jan 08, 2018 1:34 am

Thanks again....read all the threads from scotts..to Johns....and rh...wetter dryer.....well it is impotant noy to hsve a water only solution....mold guarantee....so add ur sugar and salt sleep at night snd air out ur teas every so often
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Psyck
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Sat Jan 13, 2018 11:04 am

tealifehk wrote:
Sat Jan 06, 2018 9:29 am
Psyck wrote:
Sat Jan 06, 2018 6:15 am
What are the alternatives to Tyvek envelopes? Would something like muslin cloth work for this purpose?
In Bangalore man? You can just age naturally!
Yes, that is what I do (as I described my storage in another post on pu storage in this Forum). Most of the year is monsoon here when the air is saturated with humidity, and even now, during the driest part of the year when the outside RH drops to the 40s, the humidity inside my house is in the 50s and 60s - largely I think due to having house plants all around the house. That is my own recommendation for those in drier climates - have a large number of plants everywhere in your house and water them regularly for a significant humidity spike in your environment.

My question was more for the sake of science rather than for my own personal usage :)
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VoirenTea
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Sat Jan 13, 2018 11:46 am

I am interested in the answer! I could buy Tyvek in A4 sheets, or rolls of fabric (or, amusingly, whole-body coveralls) for a lot less than a minimum order of envelopes which seem to be much less common here, but if I can use fabric I already have...

It looks like Tyvek is breathable, but less so than uncoated nylon or most raincoats.
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tealifehk
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Sat Jan 13, 2018 11:24 pm

ABS seems to be inert and if they make large ABS containers, might be a good choice. I did some cursory reading about ABS since I just bought a lightweight gongfucha set that is made of ABS!
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