Woodpress Oils Vs Metalpress Oils
Woodpressed Oils :-
A wooden press consisting of a large drum & shaft was rotated or steered by livestock
because the quantities were large & a considerable amount of time & energy was required to make these Oils.
In wooden press the churning was don't at a low speed which ensured that the nutrients
stayed intact during crushing. The temperatures caused by the churning were absorbed by
wooden press which was made by Indian Almond & Vaagai trees.
The wood ensured that the heat did not get transferred to the seeds & that's how the term
cold press came into exist...
Woodpressed Oils :-
A wooden press consisting of a large drum & shaft was rotated or steered by livestock
because the quantities were large & a considerable amount of time & energy was required to make these Oils.
In wooden press the churning was don't at a low speed which ensured that the nutrients
stayed intact during crushing. The temperatures caused by the churning were absorbed by
wooden press which was made by Indian Almond & Vaagai trees.
The wood ensured that the heat did not get transferred to the seeds & that's how the term
cold press came into existence.
The wood pressed expellers were then modified to also include steel. While the inner drum
and inner shaft were still wood, the exteriors and fittings were also steel. This led to greater
quantities of oil being produced but the rotation of the metal generated more heat and this did transfer to the seeds. The rotation must be kept to below 15 rpm to qualify as a cold pressed oil.
Metalpressed Oils :-
The metal or steel press kills the natural aroma, turbidity, sediments & most importantly
nutrients with its excessive heat.
Most of latest oil pressing machines consist of steel. There’s no wood and these expellers
rotate at a very high rpm producing a lot more oil when compared to the wood press for the same quantity of seeds.
The heat sensitive nutrients are destroyed and the oil also cannot be stored for a long period of time. The oils which are not cold pressed can turn rancid quickly. The heat generated when making the oils in a steel expeller also destroys all the antioxidants and minerals.
