I'm not a fan of rosalare. I've made a couple sours with it and just always is below par on flavor for me. I still have a bunch of bottles from a 2010 Flanders Brown and it tastes very good but nothing compared to the ones I've made with jp or canti dregs. Just my experience.
I stepped a vial of this up for three weeks and pitch it into a BW that had a 2 day lacto head start and a full pellicle. This stuff got active in a hurry. I had raging ferm in like 4 hours at about 68 deg. This is probably one of the most aggressive brett strains I've ever used.
In my personal experience this has been the case. Also I would say that the sour note is more intense in later generations. This is all personal experience though so your mileage may vary.
I'd stay away from that for mashing for 2 reasons. The first being the amount of head space you'll have when you mash is going to make temp control a nightmare. Second from what you are describing it doesn't sound like its insulated, which is one of the main reasons converting a cooler to an MLT...
I'm suppose to hear something today concerning the status of my order from Jeff. I haven't heard anything yet its still early though. I am getting a little nervous now that their web site is down.
I've tried every way that is available to contact these guys and nothing. I have no idea whats going on with my order and I haven't heard a thing from them. It really is unbelievable.
Yeah after reading the horror stories I suppose I should wait. However it took me a week to even get the backorder notification. I need the kegs and I'm not willing to wait a month to get them.