First HMPEs (or the stuff formally known as HMPEs) this year.

[Julian]

Just pumped a batch out of my first settling barrel, through the dry wash tower and into the second settling barrel.

There on the sides of the first barrel was a good coating of little white balls.  The temperature in the shed wouldn't have dropped below freezing so far this year.

[Chug]

What are they called these days then Julian?

I did a batch Thursday 50/50m some very thick, gloopy, hard to get out of the cubee, groundnut oil and some clean liquid 5 mic wvo (thanks to Richard Mduff) clear n bright 3/27 after the second stage, this morning I was drawing off some bio from the settling tank and noticed the 3/27 sat over on the bench looked like it had fallout in it,

I went for a closer look and its almost 2ml and whitish, ah thinks me hmpe's, so I took it in and sat it on the radiator and it soon went bright n clear again, but with almost 2ml hmpe's from 3ml of bio means that two thirds of my bio could be like this but after checking the bio in the settling tank carefully it has no sign of hmpe's that I can see.

this lends weight to the small samples show the effects better than a tankful theory, or a tankful might still be liquid even if your driveway sample is not.

[willbuild]

My workshop (shed) was at 0 to 2c for a few days when the critters appeared in mine.

[Julian]

What are they called these days then Julian?

Don't know, but there was some doubt cast a while back that perhaps the little white balls were not necessary HMPEs.

Wish I had the brains and equipment to know for sure.

[Jamesrl]

What are they called these days then Julian?

Don't know, but there was some doubt cast a while back that perhaps the little white balls were not necessary HMPEs.

Wish I had the brains and equipment to know for sure.

So let it be from this day forward that they be known as "The little white balls".

[Julian]

From my experience they form balls in open top containers and a sort of fine drop out in sealed ones.

Anyway wasn't "Little white ball" a song by Tommy Steele?

[Chug]

got tommy steele's in ya bio mate?

[Jamesrl]

got tommy steele's in ya bio mate?

How's y'bio of for tommys?

[Tony]

I think I've seen both this winter, real waxing which melts as soon as the temp goes back up, and balls/margerine mush that stays when temp increases. It's this stuff that forms emulsions with water and can be reprocessed into bio, and that I've seen a lot less of since stopping WBD in favour of stage 1 methanol starvation.

[Jamesrl]

I haven't seen waxing but I've had me fair share of  tommies (hmpe's) this winter but they really don't bother me at all, it's all part of the bio making game innit.

They're a bit like Brussel Sprouts and pubic hair, you just push'm aside and carry on eating, as with hmpe, ignore'm and carry on making bio.

[Chug]

what?
so let me get this,

hmpe's are the ones that wax and wane with temp, the little balls that need much higher temp to melt than they formed at we are calling tommies?

[Jamesrl]

what?
so let me get this,

hmpe's are the ones that wax and wane with temp, the little balls that need much higher temp to melt than they formed at we are calling tommies?

Mmmmmmm! Got me there Chug, the HMPEs in my tank are yellow balls that melt at around 35c and cool to a lighter lard looking fat.

[John Galt]

It depends on the UVO and what's been cooked in it.  Animal fats and PHO make HMPEs.  Emulsions are caused by incorrect processing.

They are still called HMPEs because they are High Melt Point Esters.

Do you frequently change your name?

[Tony]

I think we're pretty clear on HMPEs being high melt point esters, the problem is naming the the thing, the supposed results of incomplete processing, aside from calling them monoglycerides, which we assume is what they are (might not be!)

[julianf]

Has anyone run a 10/90 on straight HMPEs?

If they are simply hmpes, then, when warmed to liquid, they should pass the 10/90, same as any other ester.

However, if theyre not esters at all, then they wont pass the 10/90, and shouldnt really be called HMPEs at all.