Comment stériliser les bouteilles
Sommaire
Description
- Problème:
- Idée:
- Difficulté:
- Game de prix:
- Matérial nécessaire:
- Zone géographique:
- Compétences:
- Combien de personnes?
- Combien de temps?
Lavage et stérilisation par la vapeur de bouteilles dans les petites usines de traitement des aliments
Il est essentiel que tous les conteneurs de verre utilisés pour les aliments soient propres et en bon état. Beaucoup de petits transformateurs alimentaires font face à des problèmes supplémentaires, car ils dépendent souvent, au moins en partie, des bouteilles ou des jarres recyclées. Ce qui suit suggère quelques solutions possibles pour surmonter les problèmes de traitement des bouteilles.
Tout verre, qu'il soit neuf ou recyclé, doit être considéré comme sale et inapproprié pour être emballé sans être nettoyé. Les conteneurs recyclés doivent être traités avec grande suspicion, car ils auraient pu être utilisés pour stocker des substances indésirables. Il est recommandé que tous les conteneurs recyclés soient rigoureusement inspectés et rejetés s'il existe le moindre doute quant à leur utilisation précédente.
Figure 1: Rotating brushes with treated steel or bronze bristles
Bottles should be washed, if possible, outside the general production unit as glass splinters from the inevitable breakages should be kept as remote from production as possible.
If labels need to be removed, overnight soaking in plastic tubs full of water will prove useful.
Washing can be carried out in a large concrete sink lined with rubber (eg car mats) to reduce breakages. The actual cleaning can be done with nylon bottle brushes and detergent. Rotating brushes with treated steel or bronze bristles are available and are comparatively cheap, see Figure 1.
A very good small machine, Figure 2, incorporates both a rotating brush and pump. By rotating the handle the brush revolves and water is pumped through its head, finally draining away through a tube to the drain.
Figure 2: A small machine
The total removal of detergent bubbles can be very tiresome, involving repeated filling and emptying. A simple multi-head spray system will solve this problem, see Figure 3.
Once clean, washed glassware should pass as soon as possible to the packing area. It should be kept inverted in boxes to prevent dust and foreign bodies falling in through the necks.
Figure 3: A simple multi-head spray system
Bottle sterilisation
It is well worth considering the steam sterilisation of bottles as a final precaution prior to filling. This is particularly true if a hot filling system is to be used. Glass sometimes contains flaws and the hot filling of a cold container can cause it to shatter. This results in splinters getting in the product and represents a total loss of product.
Figure 4: A simple bottle steamer
A simple bottle steamer can easily be made by a tinsmith from copper or brass sheet, see Figure 4. It should be noted that the vertical safety tube is absolutely essential. In use, the washed bottle is inverted over the steam spigot for 15 to 30 seconds until steam emerges from its neck. Obviously, the use of protective gloves and tongs will be necessary to handle the hot glassware. It is also strongly recommended that the operator carrying out the steaming should be required to wear safety goggles as occasionally there will be breakages. Additionally, some form of simple screen between the bottle steaming point and the filling point is recommended.
Equipment Suppliers
Bottle Washing Equipment
Gardners Corporation
6 Doctors Lane, Near Gole Market, P. O. Box 299, New Delhi - 110-001, India
Tel: +91 (0)11 2334 4287/2336 3640, Fax: +91 (0)11 2684 1886
Techno Equipments
Saraswati Sadan, 1st Floor, 31 Parekh Street, Mumbai - 400 004, India
Tel: +91 (0)22 2385 1258
Eastend Engineering Company
173/1/Gopal Lal Tagore Road, Baranagar, Calcutta 700 036, India
Tel: +91 (0)33 2577 6324, Fax: +91 (0)33 2556 6710/160
Useful websites
Search database of packaging product suppliers
http://www.packagingindia.com
References and further reading
This Howtopedia entry was derived from the Practical Action Technical Brief Washing and Steam Sterilising of Bottles in Small Food Processing Plants .
To look at the original document follow this link: http://www.practicalaction.org/?id=technical_briefs_energy
http://www.practicalaction.org/?id=technical_briefs_water
Adresses utiles
Practical Action
The Schumacher Centre for Technology & Development, Bourton on Dunsmore, RUGBY, CV23 9QZ, United Kingdom.
Tel.: +44 (0) 1926 634400, Fax: +44 (0) 1926 634401
e-mail:practicalaction@practicalaction.org.uk
web:www.practicalaction.org
