Author Topic: getting humidity right (First Blue)  (Read 1375 times)

Offline Shalloy

  • Mature Cheese
  • ****
  • Location: Melbourne
  • Posts: 115
  • Cheeses: 1
  • Default personal text
getting humidity right (First Blue)
« on: February 03, 2013, 07:36:50 PM »
Ive just made my first blue cheese and have salted for 3 days now am ageing it in a maturation box in my fridge set at 10C using a temperature controller. After 5 days there is a slight blue mould starting to form. I dont have a hygrometer  yet so am a little worried that my humidty may be too high or not high enough. Here is a picture of my maturation box with the lid on and you can see how much condensation is inside the box. I know its a bit hit and miss but just wondering what you cheese experts think? Does it look like it might be humid enough in there for my blue?  95% humidity. I had the lid slightly opened but it seemed to be too dry so closed it right up.



Guests, join the CheeseForum.org community to remove this ad.


Offline Shalloy

  • Mature Cheese
  • ****
  • Location: Melbourne
  • Posts: 115
  • Cheeses: 1
  • Default personal text
Re: getting humidity right (First Blue)
« Reply #1 on: February 03, 2013, 08:11:15 PM »
Also just to add I have a starsan soaked cloth sitting in the bottom to keep the container moist. Is this okay to leave the cloth in there? After a while the starsan will probably fail and stop being sterile, so will bacteria start to grow on the cloth and spread to the cheese?
Should I be replacing this cloth every few days?

Thanks again.

Offline Mike Richards

  • Mature Cheese
  • ****
  • Location: colorado springs, co
  • Posts: 446
  • Cheeses: 19
Re: getting humidity right (First Blue)
« Reply #2 on: February 03, 2013, 09:59:25 PM »
With all the condensation, if the temp throughout the box is close to the same, you are at 100% relative humidity.  Water condenses when the air temperature drops below the dew point--the temperature where the relative humidity is 100%.  If water is condensing on the sides of your container, then the air near the container wall is at 100% humidity.  If the temperature throughout the container is even, then most of the container is at about 100%.
If only I could make cheese as well as I grow a mustache...

Offline Shalloy

  • Mature Cheese
  • ****
  • Location: Melbourne
  • Posts: 115
  • Cheeses: 1
  • Default personal text
Re: getting humidity right (First Blue)
« Reply #3 on: February 03, 2013, 10:13:24 PM »
The temperature inside and outside the container should be the same I suppose as the container is always sitting inside the fridge. It's set at 10.5c
So if its 100% humidity should I be cracking the lid a touch to drop it to 95%?
Or will 100% be fine?

Offline Mike Richards

  • Mature Cheese
  • ****
  • Location: colorado springs, co
  • Posts: 446
  • Cheeses: 19
Re: getting humidity right (First Blue)
« Reply #4 on: February 03, 2013, 11:27:49 PM »
I've never made a blue before, so I can't answer that question.  If you want to get to 95%, you should crack the lid a bit (and wipe out all the condensation that's already in there...
If only I could make cheese as well as I grow a mustache...


Guests, join the CheeseForum.org community to remove this ad.


Offline Schnecken Slayer

  • Mature Cheese
  • ****
  • Location: Newcastle, Australia
  • Posts: 429
  • Cheeses: 14
  • Making cheese since October 2012
Re: getting humidity right (First Blue)
« Reply #5 on: February 04, 2013, 02:34:43 AM »
As Mike said, wipe the inside daily and crack the lid to bring the humidity down.
You should get some condensation on the sides but if you get it on the lid it may be too humid.
-Bill
One day I will add something here...

Online Tomer1

  • Old Cheese
  • *****
  • Location: Israel
  • Posts: 1,669
  • Cheeses: 33
  • Default personal text
Re: getting humidity right (First Blue)
« Reply #6 on: February 04, 2013, 06:00:31 AM »
get it down a bit to 90% or so, otherwise moisture will likely form on the rind and soon it could become slimy from yeast growth and you will need to give it much more attention then you would otherwise.
Amatuar winemaker,baker, cook and musician
not in any particular order.

Offline Shalloy

  • Mature Cheese
  • ****
  • Location: Melbourne
  • Posts: 115
  • Cheeses: 1
  • Default personal text
Re: getting humidity right (First Blue)
« Reply #7 on: February 04, 2013, 03:15:54 PM »
Thanks gents. I only have condensation on the sides not the lid and the cheese itself looks fairly dry. Not moist and slimy. I've cracked the lid. Should I remove the wet cloth I have sitting in the bottom?

Online Al Lewis

  • Old Cheese
  • *****
  • Location: Port Orchard Washington
  • Posts: 1,124
  • Cheeses: 38
Re: getting humidity right (First Blue)
« Reply #8 on: February 04, 2013, 03:52:48 PM »
As long as the cheese remains relatively dry, just a bit tacky to the touch, you'll be fine.  RH should be 85-90%

Online Tomer1

  • Old Cheese
  • *****
  • Location: Israel
  • Posts: 1,669
  • Cheeses: 33
  • Default personal text
Re: getting humidity right (First Blue)
« Reply #9 on: February 04, 2013, 03:54:42 PM »
Yep, also wipe down the container. (I usually take out the cheese and just swing the container in the air to get the droplets out :) )
The cheese itself will supply all the moisture the small container needs to maintain high moisture.
Amatuar winemaker,baker, cook and musician
not in any particular order.


Guests, join the CheeseForum.org community to remove this ad.


Offline Shalloy

  • Mature Cheese
  • ****
  • Location: Melbourne
  • Posts: 115
  • Cheeses: 1
  • Default personal text
Re: getting humidity right (First Blue)
« Reply #10 on: February 04, 2013, 04:42:35 PM »
Okay thanks for that. This is my first cheese so very hard to work out how much moisture is too much. I didnt have the wet cloth in there originally and had the lid cracked but was worried it was too dry so closed the lid and put a wet cloth in the bottom.

i really need to get a hygrometer with remote sensor so I can fit it ino my cheese container. problem is I also want to do some camemberts in another container so will have to buy two hygrometers and I know the units on ebay that are cheap are also crap and dont work very accurately.

Offline Shalloy

  • Mature Cheese
  • ****
  • Location: Melbourne
  • Posts: 115
  • Cheeses: 1
  • Default personal text
Re: getting humidity right (First Blue)
« Reply #11 on: February 06, 2013, 12:00:36 AM »
I took out the wet cloth and kept the lid cracked open but all that side of the container was completely dry. Only the opposite side walls to where the lid was cracked was moist. So I closed the lid back up. Hopefully the moisture in the cheese will keep the humidy right. Its moist to touch but only slightly, not damp and no visible moisture on the surface.

After 6 days it looks like this.. is this about right?

Thanks for the help.


Offline Schnecken Slayer

  • Mature Cheese
  • ****
  • Location: Newcastle, Australia
  • Posts: 429
  • Cheeses: 14
  • Making cheese since October 2012
Re: getting humidity right (First Blue)
« Reply #12 on: February 06, 2013, 12:03:22 AM »
That certainly looks good to me.

Well done.
-Bill
One day I will add something here...

Online Al Lewis

  • Old Cheese
  • *****
  • Location: Port Orchard Washington
  • Posts: 1,124
  • Cheeses: 38
Re: getting humidity right (First Blue)
« Reply #13 on: February 07, 2013, 04:07:33 PM »
Looks fine.

Offline Shalloy

  • Mature Cheese
  • ****
  • Location: Melbourne
  • Posts: 115
  • Cheeses: 1
  • Default personal text
Re: getting humidity right (First Blue)
« Reply #14 on: February 08, 2013, 08:12:24 PM »
I brought a wireless hygrometer. It was a Chinese cheapo but seems to be accurate enough.
My humidity was only around 75%. So I've put a wet cloth in the bottom and its now increased to around 85%.

Will see how that goes.