Title: Process for producing carbonated coffee drink

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Claims: What is claimed is:

1. A process for preserving the natural body, taste and flavor of packaged freshly brewed coffee liquid without removing or degrading the colloidal material present therein which comprises preparing an aqueous coffee extract from roasted and ground coffee beans, adding to and dispersing in said coffee extract an effective amount of a propylene glycol fatty acid ester as an anti-foaming agent or a mixture of said propylene glycol fatty acid ester and a second anti-foaming agent selected from the group consisting of glycerin fatty acid esters, sorbitan fatty acid esters, and silicone resin; carbonating said coffee extract by impregnating the same with carbon dioxide under pressure and packaging said carbonated coffee extract in a sealed container; said amount being effective to reduce the foaming when said container is opened.

2. A process according to claim 1 wherein said second anti-foaming agent is glycerine mono-oleate.

3. A process according to claim 1 wherein said second anti-foaming agent is selected from the group consisting of sorbitan mono-laurate, sorbitan mono-stearate, sorbitan mono-oleate, sorbitan tri-stearate, sorbitan tri-oleate and sorbitan sesquioleate.

4. A process according to claim 1 wherein said second anti-foaming agent is sorbitan mono-laurate.

5. A process according to claim 1 wherein said second anti-foaming agent is propylene glycol mono-oleate.

6. A process according to claim 1 wherein said second anti-foaming agent is emulsified silicone resin.

7. A process according to claim 1 wherein the amount of said anti-foaming agent or mixture of agents per kilogram of solids in the coffee extract is 20 milligrams to 5 grams.

8. A packaged coffee beverage made by the process of claim 1.

Other info:

Inventors: Cho, Kichinosuke (Funabashi, JP)
Watanabe, Tsutomu (Tokyo, JP)

Application Number: 759489
Filing Date: 1977-01-14
Publication_date: 1978-08-08
Assignee: Kabushiki Kaisha Art Coffee (Tokyo, JP)
Primary Class(es): 426/329 426/477, 426/594
Other Classes:
US Patent Ref:

2118184	May, 1938	Fronmuller et al.	426/594.
2620276	Dec, 1952	Heyman	426/594.
3142572	Jul, 1964	Miller et al.	426/329.
3595669	Jul, 1971	Strobel	426/594.
3879565	Apr, 1975	Einstman	426/329.
3925242	Dec, 1975	Sagi et al.	426/329.

Other Refs:
Primary Examiner: Jones, Raymond N.
Assistant Examiner: Warden, Robert J.
Attorney: