Why different materials are used in the production of horse
bits.
Stainless steel is the most common metal modern bits are made
from, and for good reasons. It is very strong, easy and cheap to
produce. Unfortunately, the good reasons are only really good
for the pocket and the manufacturers! To the horse, stainless
steel is a tasteless, cold, metal that doesn't encourage a soft
mouth or salivation. If the horse tends to be tense, fussy or
just a general worrier, this doesn't help with achieving a
comfortable mouth.
In the past, some bits were made from copper/nickel alloys which
helped give the bit an attractive taste to most (but not every!)
horse , thus overcoming some of the problems of stainless steel.
However, the nickel used to strengthen the soft copper had two
potential problems. A reasonable number of horses are allergic
to nickel and it caused a rash, and consequently sore mouth.
Secondly, nickel has a nasty habit of snapping when put under
pressure. There are now a lot of bits on the market, and very
few (and certainly not the more expensive brands) use nickel in
the make up of the metal- if the bit seems like an amazing
bargain just make sure it isn't at your horses cost! These bits
are made from alloys that are often closely guarded secrets, but
generally include large amounts of copper mixed with other
stronger metals and sometimes silicon to make a durable, warm
and safe alloy.
Sweet iron is another 'new' material widely used as it oxidizes
(rusts!) with use to produce a sweet taste. This is in fact not
a new idea at all as some of the earliest recorded bits were
made of iron, but this was not always primarily for the horses
benefit! When they became fashionable again around 7-8 years
ago, some badly produced imported sweet iron bits were prone to
flaking shards of rust which caused sore and cut mouths.
Unfortunately this put a lot of people off of using them, while
the well made bits were proving to be a very useful and gaining
in popularity. Currently, there are some very reasonably prices
sweet iron bits, and the problems of flaking have been
rectified.
Space age and flavored plastic covered bits were widely regarded
at one time to be a very kind alternative to metal, yet stronger
and more chew resistant than rubber, also being softer and
cheaper to produce than vulcanite. They have been used a lot for
young horses to be started in, and also for soft mouthed horses.
There is no doubt that some horses do go well in them,
especially if they cannot tolerate a metal bit. However, I feel
that these bits have a few problems of their own, namely they
have a nasty habit of causing sore lips due to friction burns if
the bit is pulled suddenly through the horses mouth or from side
to side for any reason (a distinct possibility with a wobbly
youngster!). They can also be classed as fat bits, which
research has found can be less comfortable for horses with big
lips/tongue. This in turn can cause further behavioral problems
such as yawing (opening the mouth).
Some bit manufacturers have gone a stage further and use a
combination of copper and sweet iron, one of the most popular
bits we sell is a loose ring copper lozenge, sweet iron bit as
it seems to address a lot of the comfort and metal concerns, and
it isn't expensive! Obviously this is not a universal wonder bit
as ever horse (and rider) is an individual case, but in a lot of
cases a bit like this is a good place to start.