Method for removing odor from vinegar
The invention relates to a method for removing odor from vinegar comprising: a) increasing the pH of the vinegar with base to at least 6; b) maintaining said pH for at least 15 minutes at 40-90° C.; c) adding acid to obtain vinegar having pH between 6 and 8, if the pH of the vinegar of step b) is 8 or higher.
1. A method for removing odor from vinegar comprising:
a) increasing a pH of the vinegar with base to at least 6;
b) maintaining said pH for at least 15 minutes at 40-90° C.; and
c) adding acid to obtain vinegar having a pH of between 6 and 8, if the pH of the vinegar of step b) is 8 or higher.
2. The method according to claim 1 wherein at least part of volatile constituents of the vinegar is evaporated during or after step b).
3. The method according to claim 1 wherein in step a) the pH is increased to at least 8.
4. The method according to claim 1 wherein in step b) the vinegar is maintained at said pH for at least 30 minutes.
5. The method according to claim 1 wherein in step b) the temperature is maintained at 50-80° C.
6. The method according to claim 1 wherein in step a) the pH is increased using potassium and/or sodium hydroxide.
7. The method according to claim 1 wherein in step c) a hydroxy acid is added to adjust the pH to between 6 and 8.
8. The method according to claim 7 , wherein the hydroxy acid is lactic acid, citric acid, or a mixture thereof.
9. The method according to claim 1 wherein the vinegar is mixed in or prior to step a) with lactate ion.
10. The method according to claim 9 wherein the vinegar is mixed with potassium lactate and/or sodium lactate.
11. The method according to claim 1 , wherein in step a) the pH is increased to at least 9.5.
12. The method according to claim 1 , wherein in step b) the vinegar is maintained at said pH for at least 60 minutes.