Instruction: Given a question and the related document, and generate the answer to the question based on the information provided in the document.

Input:
Question: Exactly how do you adjust the fineness of the grind and how can you tell what grind it is set for, other than trial and error?
Document: I love being able to set the grind to any fineness I like with just the touch of the knob on the bottom, and the base of this grinder doubles as a tamper for my Presso's ground receptacle. I've taken this on a couple of trips, and being able to have freshly ground espresso without the need for electricity is wonderful!
After searching through a short list of small ceramic conical grinders [Hario, Kyocera, Norpro] I settled on the Porlex and I am extremely satisfied with my choice. Great for travel or camping, yet the quality appears to be high enough to last through everyday use. [Of course time will tell.] The grind is consistent and simple to adjust. The grinder is very easy to handle and takes very little time [2-3 mins] to grind enough coffee for the half pot I brew every morning.
So far the setting is holding exactly where it should. Time will tell if my one concern about wear between the handle hex female and the shaft hex male will prove to be an issue.
If you just want to grind a small amount of coffee (or whatever) and don't want cables, batteries, or bulk, this is the bomb! It is clever, good looking, compact, and easy to use (once guided by translated instructions posted here on Amazon by fellow shoppers, or just figure it by trial and error). I love to start my day with a few gyrations on this (to music).
Easy to set up and grind away eventually finding the right tension to give you the perfect grind.Is it worth the price? Only if you like waking up early in the morning and doing your meditation as you grind your coffee for the morning.Coffee has no bitter taste and using fewer beans for a more robust result......
Also suitable uses would include camping or perhaps road trips.Each adjustment of the grind-adjustment-nut at the bottom of the ceramic assembly makes a small 'click' when you turn it- and as far as I can tell, the setting stays where you put it.
Consistent grind, easy to operate and adjust. I like how the handle comes off so it can be stored in the cupboard with a minimal footprint required.
Takes some cranking but great in a pinch if you don't have an electric grinder. Easy to adjust and clean. Very simple device. Makes a very consistent grind. Pleasantly surprised.
Grinds the way I hoped. Make sure you adjust the grind wheel back at least two notches before turning handle. I backed off three to create a perfect grind for me.
I keep trying these manual grinders in hope of finding one that would work for French press. This is the second one I tried. The problem is that the grinding stone, when set in coarse position, gets a lot of slack (this is normal) but it wobbles significantly leading to inconsistent grind. This is the same problem I saw with another manual grinder -- they cannot set the central spindle in a fixed way so that it does not wobble.
Answer: There is a white wing-type nut under the main body.  You remove the cylindrical canister at the bottom and you'll see the white nut attached to the top part.  Unscrew it for a coarser grain and engage it for a finer grain.  Begin with the nut completely screwed in then back it off.  You will feel clicks... just count the clicks and remember the number of clicks compared to the grind.  I would start by backing off about 10 clicks and adjusting from there.  Just grind a couple of beans to check, make any adjustments and grind another few beans.  Hope that helps