Originally Posted by
4Walls
Yes. Synthetic felt is common. Comes in lots of colours. I get white/not dyed.
Had a member complain to me that he built a vacuum filter and his syrup still had sugar sands. We discussed everything to figure it out. Turns out it was the process not the build. He built and filtered exactly as described. Used Orlan x3 and pre filter papers. Worked great. We got it figured out.
Problem was, once the syrup was filtered he put it on the stove to bottle. He brought it up to the boil and then bottled. It's recommended to bottle above 180. I suggest 200f. Enough heat inertia to kill anything in the bottle and not spoil. If the syrup comes up to the boil, or goes .1F above your finished product temp, then more sands will precipitate out of the syrup in the filter pot. The will cause sands in the syrup.
There is science behind it. Has to do with mineral super saturation points. Just know, do not bring finished and filtered syrup back up to the boil before bottling. Get up to 200f and yer good..