Round glass jars or square glass jars?
Both
shapes – round or square do matter – both in
attracting the end user as well as influencing
their purchasing decision. Both square and round glass bottles and glass jars
have their own unique characteristics, and in no
way, one is superior than the other.
To make your choice easy, listed below are factors
that you can consider while selecting the right
shape for packaging your product: round glass jar or
square glass jar.
1. Strength of the Glass Jar:
Generally, roundness of the bottle helps equalize
the pressure across the surface. On the other hand, due to uneven pressure, the
square shaped bottles have high probability of
getting chipped at corners.
2. Automation and conveyor handling:
Machine filling of a product in round glass jar
is much faster and efficient compared to square
ones.
3. Preference by end consumer:
Round shaped bottles are relatively more
comfortable to hold, and this reason makes them
right choice for everyone in general, and the kids
in particular.
In fact, bottle holders in baby strollers and
diaper bags are also designed to handle
round-shaped bottles.
4. Labelling of Glass Jars:
Labeling on both round-shaped and square shaped
bottles is easy, depending on whether it is being
done manually or mechanically.
Applying labels mechanically on round bottles is
relatively easier and consistent. If done manually it is same for both.
5. Vertical Load:
Vertical load in round bottles is higher than in
square bottles, and thus you can load and stack
higher in the round bottle.
6. Ergonomics:
In simple terms, ergonomics is about designing for people, with an objective of increasing efficiency and productivity and reducing discomfort.
Round shaped bottles are more ergonomic to hold
than their square counterparts.
7. Cost Factor:
Other things remaining same, since round glass
bottles are lighter than their square
counterparts, they tend to be cheaper as weight is
less.
8. Aesthetic Considerations of Glass Jars:
Square shaped bottles are aesthetically more
pleasing than the round ones.
Thus, the square ones are more likely to attract
user’s attention, and help customers recognize
your brand immediately.
9. Ease of Use:
It is easier to scoop out the products from a
round glass jar, as in square bottles, products
get stuck in corners
10. For Export Purpose:
The carton size for round glass bottles/glass
jars is always bigger than their square
counterparts. In case of exports, volumes matter a
lot, and thus square bottles are preferable.




