Biscuits and cookies have been
part of our life since long time, we all love and like to eat some or other
type of biscuits or cookies due its brand, taste, health benefits and many
other reasons. One thing that we all love about them is their crispness, crispy
and crunchy biscuits have always been first choice as biscuit and cookie lover.
If it’s not crunchy then as consumer we never felt like we have some good
biscuit or cookie and some it’s not baked properly, even if it’s over crunched
and browned lots then also it gives taste like its burned while baking. Hence
baking of biscuits and cookies become very important and critical for them to
taste at best.
Baking is one of very critical process in biscuits and
cookies manufacturing plants, and it’s defined in food processing as process to
heat the food to reduce its moisture completely and give them sustainable solid
structure, so that they can last for longer time duration. In short the baking
is kind of cooking food by the manner of direct heat. Most important part or
need of baking is heat that is applied to biscuit or any other item to be
baked. Hence the process of baking is completely dependent on the heating
system and heat temperature that is applied in baking.
The conventional heating system
has been used in baking process from longer time but having many limitations
such as
· Larger area in for baking system
· Response time is huge
· Temperature control is difficult
· Fuel consumption is high
· Irregular baking
due to above limitations the
conventional heater based baking ovens have not able to deliver the desired
quality of product. But in past there was no choice but to use the conventional
heating technology in baking process, but as the time has change an
introduction of infrared and microwave heating systems started getting
popularity in industrial heating and market needed well baked high quality
product.
Higher productivity with good
quality in lesser time can be achieved at lower opex cost. Conventional heaters
based baking ovens had always faced issues of incomplete baking as the
conventional heating/drying technique used to heat the biscuits and cookies
from the outer surface to inner, this many time lead to baking outer surface
fully and the inner part left unbaked. This ultimately resulted in customer
complaints about the biscuits and cookies. Microwave heating systems provided
best solution to this problem as it heats from inside- out, so microwave based
baking ovens produces biscuits and cookies which were well cooked from inside
but the out crust of the biscuits and cookies still not able to take the
texture that should have. Hence the engineers had thought of the combining
infrared and microwave heating system as new hybrid solution to specified need
of the industry.
The infrared heating system works
similar to that of conventional heater with advantages such as the higher speed
of productivity in lesser time, requires smaller space, highly controllable and
fuel efficient. This bakes the biscuits and cookies from outer crust and gives
it the texture that is needed.
Hence hybrid system works best with infrared
heater drying outside-in and at the end using microwave heating system to heat
inside-out, hence giving perfectly baked crispy and crunchy biscuits and
cookies ready to delight the biscuit and cookies lovers.
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