Been searching around the web for answers, none found. My guess is that it's
uncooked rice (as "unedged" rice doesn't make any sense).
CC BY-SA 3.0
2016-09-30T11:51:01.430
39583
2016-10-08T16:45:23.293
2016-09-30T13:19:05.113
1628
11397
question
food terminology
What does 研がず mean in cooking?
Before cooking rice, many people wash the rice by "grinding" (hence 研ぐ) the
individual grains against one another under flowing water until the water runs
more or less clear. (In the olden days the purpose of the grinding was to
remove the hull (糠【ぬか】).)

In the process of this, together with rest of the hulls and dust, minerals and
starch are also removed.

In any case, お米を研がず means "without washing the rice (rigorous/vigorously)".
CC BY-SA 3.0
2016-09-30T13:16:23.343
39584
2016-09-30T13:16:23.343
1628
39583
answer
According to the dictionary 研ぐ may mean "to wash in water" (水の中で洗う):
<http://dictionary.goo.ne.jp/je/53967/meaning/m0u/%E7%A0%94%E3%81%90/>

So 研がず means "unwashed".
CC BY-SA 3.0
2016-10-08T16:45:23.293
39797
2016-10-08T16:45:23.293
18157
39583
answer