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CHEESE TYPE BOARDS (for Cheese Lovers and Cheese Makers) => ADJUNCT - Blue Mold (Penicillium roqueforti) Ripened => Topic started by: scasnerkay on November 21, 2020, 08:43:23 PM

Title: Using blue from another cheese
Post by: scasnerkay on November 21, 2020, 08:43:23 PM
Though I have made cheeses for quite a few years, I have stayed away from blue cheeses, wanting to avoid the cross contamination. I finally have some space for a separate small refrigerator to give it a try.
Using a Peter Dixon recipe, I did 2 makes, each using 2 gallon raw milk, mm100, and some blue mold from a purchased cheese.
The blue cheese was smashed up and added to some milk at the beginning of the make each time.
Now almost 4 weeks from the first make, and absolutely no blue growing!!
Humidity is about 90 to 95%, and temp about 50.
Any tips??
Anyone having success in transferring blue from a commercial cheese?
Title: Re: Using blue from another cheese
Post by: Bantams on November 21, 2020, 09:48:48 PM
No mold whatsoever?! How strange. I think it might have been oversalted because surely you would have some sort of mold growing by a week or two of age. Maybe the blue is lurking under the surface? I believe Roquefort is so heavily salted that the rind stays mold free naturally.
Title: Re: Using blue from another cheese
Post by: scasnerkay on November 22, 2020, 12:40:05 AM
Yes, lots of salt rubbed in. The instructions were 3.5% by weight, then 2 days later another 2.5% by weight. I did not add the third salting of 1.5% at about 6 days.
A lot of the salt did not soak into the cheese. For me with dry salting I seem to loose a lot of salt anyway.
Title: Re: Using blue from another cheese
Post by: Lancer99 on November 22, 2020, 04:50:58 AM
I've made about 10 blue cheeses, all starting from one  commercial blue cheese, first from crumbles blended with water, later from the mold grown on bread, so it's definitely possible.

I'm afraid that's not much help!

-L
Title: Re: Using blue from another cheese
Post by: scasnerkay on November 24, 2020, 03:06:52 AM
I made a slurry of more blue (from a new package of commercial cheese) and some milk, using a sanitized hand blender. I smeared the slurry over the outside of the two pierced cheeses.

Fingers crossed for some blue!!
Title: Re: Using blue from another cheese
Post by: SOSEATTLE on November 24, 2020, 03:11:25 AM
I did a surface ripened chevre with mold harvested from a local commercial/artisan cheese. Worked beautifully. Sorry the photos are no longer there. The image hosting site I was using at the time went belly-up. 

https://cheeseforum.org/forum/index.php/topic,16224.msg124401.html#msg124401 (https://cheeseforum.org/forum/index.php/topic,16224.msg124401.html#msg124401)


Susan
Title: Re: Using blue from another cheese
Post by: SDmilkmaid on November 25, 2020, 10:43:25 PM
I did, but it was a long time ago. I wonder if the cheese you used was irradiated or something, rendering the mold sterile.
If I remember correctly, it only took 3 days or so for the mold to show. It starts out white, then turns blue.
Rachel
Title: Re: Using blue from another cheese
Post by: CarlB on January 01, 2021, 01:11:40 PM
I haven't made any cheese for awhile but have never had problems with harvested mold.  Try to grow some of the harvested mold first, on some bread.

I jumped back in and currently have a blue made with some harvested PR going on three weeks.  Pretty aggressive growth so I gave it a rub down with brine.
Title: Re: Using blue from another cheese
Post by: scasnerkay on January 03, 2021, 08:19:07 PM
I cut it pen today, at 3 months... there is some blue inside!
Title: Re: Using blue from another cheese
Post by: SDmilkmaid on January 03, 2021, 09:31:48 PM
That looks delicious! AC4U
Title: Re: Using blue from another cheese
Post by: not_ally on January 04, 2021, 12:57:33 PM
Ditto. One from me, too.
Title: Re: Using blue from another cheese
Post by: Boofer on January 04, 2021, 04:14:42 PM
Congrats, Susan!

Like opening a delayed holiday gift...SURPRISE!

Well done. Have a cheese.

-Boofer-
Title: Re: Using blue from another cheese
Post by: CarlB on January 05, 2021, 07:28:34 PM
Nice!
Title: Re: Using blue from another cheese
Post by: DrChile on January 05, 2021, 08:50:20 PM
That looks great!
and tasty!

AC4U

Trent
Title: Re: Using blue from another cheese
Post by: scasnerkay on January 06, 2021, 10:53:39 PM
Thank you all! I think it is quite a nice texture and flavor! Less salt next time though!
Title: Re: Using blue from another cheese
Post by: Susan38 on January 11, 2021, 12:49:06 AM
Congrats from me as well!  It's always nice to have success right at the start of a new venture.  Wishing you many more successful blues ahead!