May 08 2009
Harvesting times and High Brix
A reader in New Zealand writes:
Hi,
I’m a newbie to understanding Brix and the growing of high quality produce. I have not done a lot of searching back through your files to date but will.
I have a question unrelated to my own situation at the moment. In the New Zealand Kiwifruit industry they pick commercially, the fruit is harvested mature-ripe when its soluble sugars reach 6.5 brix on a refractometer.
If I am talking to a grower and tell him he can grow higher Brix levels in his, he would likely say he would then pick earlier, as the industry requires this. The thinking process, I presume, is that they would not store if picked too late. I do know that High Brix produce does store longer but not sure how to explain this point of view.
I have had this comment from apple growers as well.
Your thoughts?
Thanks
Grant
——–
Grant,
You are dealing with a couple of different meanings concerning brix here. Your growers are not recognizing brix as something equated to quality, but are using brix as a measurement to determine when it is appropriate to harvest a fruit. Kiwifruit, Apples, and Grapes are often harvested when they reach certain brix levels. Those growers use a refractometer for those purposes.
However, they do not recognize that Brix “equals” quality. The Kiwi fruit growers don’t use brix as a means of determining quality, but use brix as a means of determining when to harvest their fruit. Continue Reading »


