Peppercorns (Black)

If a contact with metals is allowed, also grinding disks made of steel use to be available.

It took about 12 minutes of grinding for the complete sample. The gap between the disks remains free, so a grinding of higher amounts is still possible.

Also smaller gap settings can be used for a much finer grinding result (see results 2-3).

For the 500 grams of sample, about 7 minutes have been needed to achieve a fineness of < 2 mm.

Most of the pepper corns have been ground to ¼ or finer.

Gap between the two disks use to remain free of residues, a grinding of higher amounts is still possible.

With the last test with PULVERISETTE 13, a gap of 1,0 mm has been set. This way, the majority of ground sample use to be very fine, only a few ground particles use to have about 1/8 of the original size.

Still, gap between the grinding disks use to be free of residues, even smaller gap settings can be adjusted to ground finer. Also higher amounts can be ground without problems.

Most of the sample (666g) has been ground within the first minute.

After the first minute, ground sample becomes finer as in the beginning of the grinding process.

The sieve cassettes openings use to be closed by 2/3; probably up to 1,5 kg of sample can be ground this way. It might be possible that new sample will remove lightly sticking sample from the openings, at least – cleaning of the sieve cassette can be performed easily by using a steel brush.

Most of the sample (490g) has been grinded after the first 20 seconds.

Later on, maybe caused by the empty hopper, the fineness have been higher.

Most of the sieve openings are free. A grinding of higher amounts is still possible. The few sticking pieces have been removed rapidly by using a wired brush after grinding.

Also a Cross Beater Mill PULVERISETTE 16 might be capable to grind higher amounts of pepper corns.

In our first trial, we used a bottom sieve of 2 mm trapezoidal perforation. The resulting particles use to about ¼ of the original size (as desired) and finer.

Sieve openings use to remain free, only a small amount of sample uses to stick to the ribs or the grinding insert. Still higher amounts can be used for grinding.

This appears to be the best grinding result we performed with Cross Beater Mill PULVERISETTE 16 (compare result 7).

Still higher amounts of sample can be ground.

With the 4 mm bottom sieve, output use to be higher, still a few halves can be spotted, also a few intact pieces with a diameter of ~ 3,5 mm have been found.

Also a few particles use to be attached to the ribs of the grinding insert.