I've used them a few times and just start with a few drops and then taste. I found info on their website but they are pretty vaque.
"How do LorAnn oil flavors compare to extracts?
You can use any one of LorAnns concentrated flavorings in place of an extract but you dont need to use as much! Unlike traditional extracts which are mostly alcohol, LorAnn flavorings contain little or no alcohol. Generally, a LorAnn flavor is three times the strength of most extracts and will handle the heat in cooking and baking better. The natural essential oils (such as peppermint, anise, spearmint, lemon, etc.) and cinnamon oil are the most potentso a little bit goes a long way!"
and I found this:
"More uses for LorAnn Flavoring Oils
If your recipe calls for orange, lemon or lime zest, use a few drops of flavoring instead.
If you're making homemade jams and jellies, add a bit of LorAnn Flavoring Oil (Strawberry Flavor for strawberry jam, etc.) for a great flavor boost.
Try a few drops of Raspberry or Peach Flavoring in your iced tea.
Add a few drops of Orange Flavoring to your favorite chocolate chip cookie recipe.
Add 1/2 teaspoon of Pineapple Flavoring to any boxed white cake mix. While still warm, top with a glaze made with powdered sugar, milk and a few drops of Pineapple Flavoring for a delicious tropical treat.
Use a few drops in your recipe for homemade beer. Try pumpkin, apricot, raspberry or your favorite flavor!".
If I find better info I'll write in,