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A vacuum seal for preservation of feedingformulas
A VACUUM S E A L F O R P R E S E R V A T I O N
OF FEEDING
FOI%MULAS WILLIA~s V. CO1N'SOLAZIO BOSTON, ~-ViASS.
E principle of the vacuum seal 1, 2 has been utilized for a simple T Harrangement which permits sterilization and subsequent preservation of nippled bottles containing feeding formulas. The device -~ is a flanged pyrex b r a n d cap (Fig. 1) which fits snugly over the base of the nipple. A small hole in the side wall of the cap is covered with a thin rubber collar which serves as an escape valve. The formula is mixed at room t e m p e r a t u r e and added to the bottles which are then covered with the r u b b e r nipples in the usual manner. The glass cap is forced over the nipple rim, and the batch of bottles is sterilized for fifteen minutes at atmospheric pressure. The vacuum produced during cooling m a y be maintained for several weeks if necessary. When the formula is r e a d y to be used, the v a c u u m is broken by removing the rubber collar and glass cap.
~'L~!!
'~1'
Fig. 1.
Formulas made f r o m whole cow's milk m a y be preserved without evidence of change in physical properties for several days. Canned milk formulas may be preserved for at least one w~ek at room t e m p e r a t u r e without evidence of spoilage. REFERENCES 1. Walter, C . W . : J . A . M . A . 104: 1688, ~[935. 2. Walter, C. W.: Surg., Gynee., & Obst. 63: 643, 1936. From the Medical Laboratory, Massachusetts General Hospital. *Manufactured by Macalaster-Bicknell Company, Cambridge, Mass. 9O
OF FEEDING
FOI%MULAS WILLIA~s V. CO1N'SOLAZIO BOSTON, ~-ViASS.
E principle of the vacuum seal 1, 2 has been utilized for a simple T Harrangement which permits sterilization and subsequent preservation of nippled bottles containing feeding formulas. The device -~ is a flanged pyrex b r a n d cap (Fig. 1) which fits snugly over the base of the nipple. A small hole in the side wall of the cap is covered with a thin rubber collar which serves as an escape valve. The formula is mixed at room t e m p e r a t u r e and added to the bottles which are then covered with the r u b b e r nipples in the usual manner. The glass cap is forced over the nipple rim, and the batch of bottles is sterilized for fifteen minutes at atmospheric pressure. The vacuum produced during cooling m a y be maintained for several weeks if necessary. When the formula is r e a d y to be used, the v a c u u m is broken by removing the rubber collar and glass cap.
~'L~!!
'~1'
Fig. 1.
Formulas made f r o m whole cow's milk m a y be preserved without evidence of change in physical properties for several days. Canned milk formulas may be preserved for at least one w~ek at room t e m p e r a t u r e without evidence of spoilage. REFERENCES 1. Walter, C . W . : J . A . M . A . 104: 1688, ~[935. 2. Walter, C. W.: Surg., Gynee., & Obst. 63: 643, 1936. From the Medical Laboratory, Massachusetts General Hospital. *Manufactured by Macalaster-Bicknell Company, Cambridge, Mass. 9O