What Herbs and Spices Are and How They Differ: 
Epicures distinguish between spices and herbs. They also
group seasoning salts such as garlic, celery, onion, and chive salts separately.
In the explanatory chart that follows they are all grouped together because that
is the usual way that you see them on the store shelves and the manner in which
the average American homemaker uses them.
Spices are the roots, bark, stems leaves, seeds or fruit
of aromatic plants which usually grow in the tropics.
Herbs are the leaves of plants which usually grow only
in the temperate zone.
Seed refers to the seed and sometimes the small fruit of
plants which grow in both tropical and temperate zones. For example, anise, caraway,
cardamom, and coriander are seeds. Strictly speaking mustard is a seed but it is
usually thought of and referred to as a spice. The chart that follows indicates
whether each seasoning is a spice, seed, or a herb.
In addition to the usual categories of spices and herbs there are also "blends"
which refer to dry mixtures of spices and herbs such as fine herbs, poultry seasoning,
chili powder, curry powder, and pumpkin pie spice.
Condiments are usually liquid or semi-liquid mixtures of spices and other ingredients
such as prepared mustard, chili sauce, ketchup, etc.
Table salt is not a spice but a chemical as is monosodium glutamate.
Hints For Cooking With Herbs:  Since experience is obviously the best teacher, use herbs
sparingly until you become acquainted with them.
The important thing to remember is that herbs never should
dominate the foods with which they are used. Herbs are meant to season, to add flavor,
to point up natural flavors.
Use ¼ teaspoon of dried herbs for a dish serving
four unless you are sure you like more. Do not use over ½ teaspoon of mixed
herbs in a dish serving four.
Do not use herbs in several dishes at the same meal - use
them for variety and accent only.
Remember that there is a difference in the strength of
fresh, dried and powdered herbs.
Dried herb
leaves are four times stronger than the same measure of fresh leaves.
A powdered
herb is two times stronger than the same measure of the crumbled dried leaves of
the same herb.
Since dried
herbs tend to lose their fragrance, soaking them in a few drops of water or lemon
juice for 15 minutes before using helps to point up the flavor.
Fresh herbs from the garden can be used just as successfully
in cooking as freshly dried herbs, but you always use less of the dried than the
fresh.
Always cut, crush, or mince fresh herbs before using to
bring out the volatile oils and true flavors. For some purposes, grind them in a
mortar. The more the cut surface is exposed the more completely the aromatic oil
can be absorbed.
Blending or heating herbs with butter or other fats is
a good way to draw out and extend the flavor of aromatic oils.
Remember that the strength of the flavor herbs give food
is increased by the length of time they cook, by a cover on the pot, the freshness
of the herb.
Herbs left too long in soups or gravies will impart unpleasantly
strong flavors. They are best added a short time before the cooking is finished.
In uncooked foods, like tomato cocktail, herbs must stand
overnight to release their full flavor.
Herbs, Spices and Seasonings
How To Start Herb and Spice Shelf:  Don't buy everything at once. The beginner would be wise
to buy the most used and most versatile herbs and spices first and learn to enjoy
them. When you are an expert in the use of these, add others to your seasoning shelf.
It pays to buy only small quantities of quality brands for full natural flavor.
Among the herbs basil, marjoram, savory, tarragon, thyme, and rosemary are especially
versatile. Less versatile but very popular is sage.
Herbs and Spices in Salt-Free Diets:  Pure herbs and spices (not blended mixes or sauces) are often
allowed in salt-free diets to add interest and zest to bland foods. Many different
flavors resulting from a variety of combinations of herbs and spices help cover
up the lack of salt in most dishes. Note that celery and parsley flakes may contain
too much sodium for inclusion in these diets.