NAME
    App::vaporcalc - Calculate e-liquid recipes for DIY vaping

SYNOPSIS
      # From a shell:
      # sh$ vaporcalc

      ## From Perl:
      # use App::vaporcalc 'vcalc';
      # my $calculated = vcalc(...); 
      # (See EXPORTED)

WARNING
    Nicotine is dangerous; skin contact can kill you.

    Don't play with it if you don't respect it!

    Any nicotine-containing product should be tested to determine nicotine
    concentration before use. Testing kits are available online. Be
    responsible.

DESCRIPTION
    This is a set of simple utilities, roles, and objects for managing e-cig
    liquid recipes and calculating "ml" quantities based on a simple recipe
    format.

    From a shell, the vaporcalc frontend starts with a base recipe outline
    and provides a command line interface to tweaking, saving, and loading
    recipes.

    If you'd like to manage recipes from perl, see "vcalc", below (or use
    App::vaporcalc::Recipe directly).

EXPORTED
  vcalc
      my $calculated = vcalc(
        target_quantity   => 30,   # ml

        base_nic_type     => 'PG', # nicotine base type (VG/PG, default PG)
        base_nic_per_ml   => 100,  # mg/ml (base nicotine concentration)
        target_nic_per_ml => 12,   # mg/ml (target nicotine concentration)

        target_pg         => 65,   # target PG percentage
        target_vg         => 35,   # target VG percentage

        # target flavor(s) name, percentage, base type
        # (or App::vaporcalc::Flavor objects)
        flavor_array => [
          +{ tag => 'Raspberry', percentage => 15, type => 'PG' },
          # ...
        ],
      );

      # Returns an App::vaporcalc::RecipeResultSet ->
      my $recipe = $calculated->recipe;   # App::vaporcalc::Recipe instance
      my $result = $calculated->result;   # App::vaporcalc::Result instance

    A functional interface to App::vaporcalc::RecipeResultSet -- takes a
    recipe (as a list of key/value pairs or an App::vaporcalc::Recipe
    object) and returns a calculated App::vaporcalc::RecipeResultSet.

    See:

    App::vaporcalc::Recipe

    App::vaporcalc::Result

    App::vaporcalc::RecipeResultSet

    App::vaporcalc::Flavor

TIPS
    Less is more with many flavors; you may want to start around 5% or so
    and work your way up.

    Ideally, let juices steep for at least a day (longer is usually better!)
    before sampling; shaking and warmth can help steep flavors faster.

    Don't use flavors containing diacetyl (frequently used to create a
    buttery taste). It's safe to eat, not safe to vape; the vapor causes
    "popcorn lung." Acetoin will ferment into diacetyl; avoid that for the
    same reasons.

    Anything containing artifical coloring or triglycerides is possibly not
    safe to vape.

    Flavors containing triacetin are reported to cause cracking in various
    plastic tanks. Triacetin is a reasonable flavor carrier and probably OK
    to vape, but may be rough on equipment. Same goes for citric acid -- and
    it may break down into lung/throat irritants upon heating.

    Buy nicotine from a reputable supplier and test it; there have been
    instances of nicotine solutions marketed as 100mg/ml going as high as
    250mg/ml!

AUTHOR
    Jon Portnoy <avenj@cobaltirc.org>

