Instructions on how to properly prepare capsules.

Extreme caution is necessary when making the caps. DNP is bright yellow and will even go through gloves. This stain will not go away for up to 2 weeks. If it does get on your hands or other parts of your house, you can usually get it off with 2(3H) Furanone dinitro (butyrolactone). It usually will come out of clothes with laundering.
Care is of the utmost importance when measuring out the amount one would need. Dan recommends 5 to 8 mg/kg bodyweight in Dirty Dieting #0, assuming that the person is under 15% BF. He subsequently told me that he was really suffering on 6-8 mg/kg, and that is excessive in his opinion. Note that the calculation is bodyweight, not lean body mass. With the exception of obese persons, this method is sufficiently accurate.
Obtain a reliable scale, a Cap M. Quik device, and some size "O" caps ($60-$200 minimum, approximately $10, and $2 respectively). Corn starch, available at the grocery, is also needed. Since DNP ships at about either 15% or 35% water by weight, it is necessary to dry out the material overnight before attempting to deal with it. No matter how dry it looks, this step is absolutely necessary for accurate dosing.
The next day, mix 15 grams DNP with 10 grams corn starch, and pound it into a fine powder. Spread resulting mixture into the Cap M. Quik, finish the capping process, and you have 50 caps of 300mg potency. Repeat as above with 10 g DNP and 15 g corn starch in order to make 50 caps of 200mg each, or with 12.5g DNP and 12.5g corn starch to make the same number of 250mg caps.
Bear in mind that the preparation process, in the absence of a laboratory equipped with a chemical hood, will destroy the immediate area. It gets in the air, and fine particles will stain everything. Wear clothes that are dispensable, at least 2 pairs of gloves, and a fume mask. Preferably, do this outside on an extremely calm day, or alternatively, place protective covering everything in sight if it is necessary to perform the encapsulation indoors.