Homebrewing For Dummys

[Gixxer82]

Homebrew Simplified

The Basics

DF = displacement factor, this is the amount of oil a given powder will displace. for dry powders like prop, or cyp Df is .75. for wet powder like EQ, test enan, or deca, Df is .85

D = displacement. powder weight(P) x df = d

P = powder weight in Grams
V = volume in ml
C = concentration in mg/ml

P= V x C
V=P/C
C=P/V

so you want to make 60ml of test cyp at 250mg/ml
60(V) x 250(C) = 15000mg or 15g of powder(P)

so you have 13.6g of powder, and you want to make it at 200mg/ml
13600mg(P)/200mg/ml(C) = 68ml(V)

displacement comes in to play, when figuring how much BA, BB, and oil to use. ba and bb are calculated as a % of total finished volume. so if we use the first example above. 15g cyp powder, 60ml volume.
displacement is P x Df(.75) 15 x .75 = 11.25
BA = .02 x 60 = 1.2, bb = .2 x 60 =12
so oil = V -D - BA - BB or 60 - 11.25 - 1.2 - 12 = 35.55ml

Supplies

scale accurate to 0.1g
beakers 100 and 250ml
glass stir rods
20um whatman filters
10 and 30ml syringes, i use tens for everything.
18 and 20g pinns,i draw oil with 20s, but filter through 18s
benzyl alchohol
benzyl benzoate
grapeseed oil
i know i'm forgetting something


General Procedures

put beaker on scale and tare
add powder and weigh.
add ba and bb
put in oven preheated to 250f(most cases) and heat until solution is completely clear, then heat 10 more min.
add oil
heat again in oven stiring occasionally until swirling is gone
filter into sterile vial using .20um whatman filter
done

-Information compiled by TestFreak


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