Düsseldorf . Deutschland
Colouring of Pre-fried French Fries
(GB: Chips) and Fried Chip Slices (GB: Crisps)
Enclosed
you find a colour table with 6 different colour shades. The
colours 1 and 2 can be accepted as being „good“ while the colour nuances 3 to 6 have to be
considered as „not good“.
How
do bad colour shades come about? There are several possible
explanations:
| 1. |
Due to the faulty construction of the fryer the fat/oil can be exposed to very high temperatures. This affects the quality of the fat/oil which results in a dull-brown colouring. |
| 2. | The potatoes were stored too cold. Through this the sugar content in the potatoes increased. This, too, results in bad colouring when frying. |
| 3. | The potato sort used is not suitable for frying. |
Good pre-fried French fries and good potato chips should
have a golden-yellow colour. What
can be done about the above-mentioned three points?
As to 1.
The
fryers must be constructed in a way the fat or oil cannot
„burn“. Otherwise the fat/oil would have to be
constantly replenished. However, this does not solve the
problem because it is very expensive. After a short time the
brown colouring comes back ... Technical modifications of
such ill-designed fryers often prove impossible so that it
might be necessary to replace the fryer by a well-tried
construction.
As
to 2.
If
the potatoes were stored too cold one can get back the sugar
content to its previous level by storing the potatoes for
some time in a warm room (surrounding temperature).
As
to 3.
The potatoes should be checked, before buying/using, in a small test fryer regarding their colour after the frying process. Attention: some potato sorts can change their properties within a short time! Thus, a favourable test carried out with a certain potato sort might turn out different some weeks later!
This
paper contains non-committal notes. We do not lay claim to
completeness. Alterations reserved.
Our order confirmation, accepted by our customers, is in
effect upon delivery. The presentation of a new edition of this treatise will
substitute for any previous versions.
Copyright
by DORNOW food technology GmbH, D-40549 Düsseldorf
DORNOW total on the Web: www.dornow.de / www.dornow.com
Q95 E3
Dornow food technology GmbH,
Willstätterstr. 12,
D-40549 Düsseldorf - Germany, USt-Id.-Nr. DE119264470
Tel. ++49-211-527060, Mobile ++49-172-2614932,
Fax ++49-211-596883, email office@dornow.de,
Internet: www.dornow.de,
Commerzbank
AG, Konto-No. 1452333, BLZ 300 400 00, Managing Director Karl-Dietrich
Dornow, Amtsgericht Düsseldorf, HRB 22597