Hop products
The present invention relates to hop products, in particular to hop products for flavouring beer and enhancing the aroma of beers, ales and other brewed beverages. More specifically, the present invention relates to such products which are 100% hop-derived and which are readily dispersible in cold wort and beer. As a result of our research, we have determined that polar hop extracts, in particular aqueous extracts of hops, have emulsifying properties for hop oil or hop oil-based hop extract products. This has allowed us to develop hop flavouring and aroma products for beer consisting solely of natural products, without the need for artificial emulsifiers and thickening agents or solvents. Surprisingly and unexpectedly, we have found that our combinations of hop-derived constituents is readily dispersible in cold wort and in beer, even when formulated as a 100% hop-derived paste, and provides excellent hop flavour and aroma to the finished beer. Accordingly, the present invention provides a hop composition comprising a mixture of a polar extract of hops and a hop oil-containing component.
1. A hop paste comprising a mixture of an aqueous extract of hops h;aving a water content between 20% w/w and 50% w/w and a hop oil-containing component; wherein the hop paste is dispersible in cold wort, beer, or other beverages.
2. The hop paste as claimed in claim 1 , wherein the aqueous extract of hops consists of an extract directly obtained by extracting hops or spent hops with water.
3. The hop paste as claimed in claim 1 , wherein the aqueous extract of hops is a de-solventized extract directly obtained from a hop extraction process with a lower alcohol that is selected from methanol, ethanol, and isopropanol.
4. The hop paste as claimed in claim 1 , wherein the hop oil-containing component is a mixture of hop oils or an extract of hops.
5. The hop paste as claimed in claim 1 , wherein the aqueous extract of hops and the hop oil-containing component are in a ratio of at least 1:1.
6. The hop paste as claimed in claim 1 , wherein the water content of the aqueous extract of hops is between 20% w/w and 40% w/w.
7. The hop paste as claimed in claim 2 , wherein the aqueous extract of hops is obtainable by extracting hops or spent hops with hot water; wherein the hot water is from 50° C. to boiling.
8. The hop paste as claimed in claim 5 , wherein the lower alcohol is ethanol.
9. The hop paste as claimed in claim 5 , wherein the aqueous extract of hops and the hop oil-containing component are in a ratio of at least 3:2.
10. The hop paste as claimed in claim 5 , wherein the aqueous extract of hops and the hop oil-containing component are in a ratio of about 7:3.
11. The hop paste as claimed in claim 6 , wherein the water content of the aqueous extract of hops is between 25% w/w and 35% w/w.
12. The hop paste as claimed in claim 1 , wherein the aqueous extract of hops is an aqueous extract of hops obtainable directly obtained-by extracting hops with water, hot water, or boiling water.
13. The hop paste as claimed in claim 1 , wherein the aqueous extract of hops is obtained from an ethanolic hop extraction process.
14. The hop paste as claimed in claim 1 , which is formulated as a binary paste consisting of (i) the aqueous extract of hops having a water content between 20% w/w and 50% w/w and (ii) the hop oil-containing component.
15. The hop paste as claimed in claim 4 , wherein the extract of hops is an oil-rich extract of hops.