Hazy NPP

[sinistral]

I've had these raws tested and they came back at 92% pure. Is that too low?

I brewed 100mg/mL in C8 only MCT with 18% BB. Heated to 60c with magnetic stirrer/hotplate for almost an hour and the solution never cleared. It isn't cloudy but more hazy.

I then tried 100mg/mL in GSO with 20% BB. Heated to 60c for an hour then went to 80c for another hour. The same haziness.

I didn't filter either of them, I just put them in a glass jar with 1% BA. You can see the MCT on the left (which I brewed yesterday) seems to be slowly crashing. The GSO on the right I brewed a few hours ago seems to be headed in the same direction. Not sure if this picture does the haziness justice.

Any ideas what could be wrong?

 

[narta]

Probably wet raws , bring it close to 100 Celsius for a good 10' and let it cool. Your baker should be dry as Sahara.

 

[nightprowler7]

I've had these raws tested and they came back at 92% pure. Is that too low?

I brewed 100mg/mL in C8 only MCT with 18% BB. Heated to 60c with magnetic stirrer/hotplate for almost an hour and the solution never cleared. It isn't cloudy but more hazy.

I then tried 100mg/mL in GSO with 20% BB. Heated to 60c for an hour then went to 80c for another hour. The same haziness.

I didn't filter either of them, I just put them in a glass jar with 1% BA. You can see the MCT on the left (which I brewed yesterday) seems to be slowly crashing. The GSO on the right I brewed a few hours ago seems to be headed in the same direction. Not sure if this picture does the haziness justice.

Any ideas what could be wrong?

View attachment 282463

Why did you not filter it? Just an experiment?

I'd try heating it higher to evaporate some of the moisture that's in there. I've never tried this personally but I have read here it occasionally works

Did you use a different type of bb? I've seen low quality bb cause haziness once

 

[sinistral]

Heat it more. Ok.
The raws are a little clumpy which could indicate moisture. I didn't bother filtering because I figured I'd have more brewing to do to correct the problem. The BB is the Med Lab Supply brand I've always used.

I'm guessing more heat will evaporate the BA and I should add that again once cooled?

Does anyone bake their raws before storing? I don't want moisture in the raws during long term storage. I have a desiccant pack in there with moisture indicator beads but maybe those things aren't reliable as indicators.

 

[nightprowler7]

Heat it more. Ok.
The raws are a little clumpy which could indicate moisture. I didn't bother filtering because I figured I'd have more brewing to do to correct the problem. The BB is the Med Lab Supply brand I've always used.

I'm guessing more heat will evaporate the BA and I should add that again once cooled?

Does anyone bake their raws before storing? I don't want moisture in the raws during long term storage. I have a desiccant pack in there with moisture indicator beads but maybe those things aren't reliable as indicators.

I wouldn't risk adding too much ba and it burning like a mf. Even if it evaporates half you're probably still fine.

I've never tried baking raws. I'd just switch raw suppliers if I got wet or clumpy raws

 

[Niks]

I was just about to make a post with what looks like the exact same problem. I have brewed 2 vials of test prop at 100mg/ml with 2% ba and 20% bb. I mixed everything in the baker and put it on the hot plate stirrer for an hour at about 50 C. After that i filtered the oil with a ptfe 0.22 syringe filter while distributing it to the two 10ml vials. I will attach photos of the results which are very strange. I got the same hazy result as @sinistral but the two vials are somehow different from one another. One is more hazy and one is more transparent but has bubbles in it (I assume it is water). On different light they look different. After reading this thread I reheated one of the vials to 100C for about 20min on the hot plate and while it was heated it looked better/more clear but as soon as it cooled down it went to its previous state - hazy again as nothing happened. I thought i will try the same but in the oven this time because maybe if it cools down slower this won’t happen but again i was wrong because at 110C it didn’t even became clear while it was heated and stayed hazy for the whole 20mins i kept it there. I will appreciate any info on the matter

 

[sinistral]

For anyone following and looking for the results.

I wasn't able to put this brew in the oven and bake it so I set up a dehumidifier in a small room and got the humidity down to 25%. I brewed it again hoping to eliminate the haze. I cooked at 70C for 4 hours but couldn't get rid of the haze. I increased the temperature to 100C for another 1/2 hour but the haze was still there.

I cooled then filtered into vials. The result in the vials was crystal clear and didn't crash for a couple days. I pinned it and no PIP so I sent a sample off for testing thinking I cooked the NPP to death. The result was 90 mg/mL.

This is my first go at brewing NPP. I would have thought the brew should be clear before filtering.

 

[mb11911]

I have the same issue with a batch of DHB raws, no matter the dehydration or heating, as soon as it's below 60°c it's hazy and crashed even though perfectly clear at high temp (needs to go up to 100°c to even dissolve)

In my case though, it won't even go through the filter - I ruined two filters and barely got 5 mL of it to come through.

As far as purity, ideally you'd be looking at at least >96% if not >98%. You have to wonder what that 8% is. Most good raws I've gotten even from some questionable sources have tested 98%. I once tossed out some T base which came back at 90% - felt it was too sketchy to use.

 

[sinistral]

As far as purity, ideally you'd be looking at at least >96% if not >98%. You have to wonder what that 8% is. Most good raws I've gotten even from some questionable sources have tested 98%. I once tossed out some T base which came back at 90% - felt it was too sketchy to use.

That's a good point. Whatever the 8% is it doesn't seem to be water. Even though it looks like the impurities are getting filtered out since the vials are clear it might just be safer to scrap these raws and try another source. I appreciate the feedback.