Teaboy
That’s extremely subjective and I’m far from an expert.
My method….
If I’m happy with a new bag which is usually 7 to 20 days after roast date i slap it in the freezer. If it a zip bag with all the air out and zipped or with all the air out and a bull dog clip (joe frex stainless are wide enough for any bag).
I then keep or take out 4 to 6 days or so in an airscape and finally weigh 20.3g ish on to small glass jars ready to throw in to to flat max or 21g of decaf in to the philos.
I have not had time to keep some to one side out of the freezer to see how it compares as my method is now habit and requires no thought or time!! i’m sure David and others will have wildly varying methods all of which are good and work equally well for them….
I never used to freeze but religiously ordered a bag to arrive just in time which required too much thought and planning!!! And recently all roasters seem to have 20 percent off in the same week so it was proving rather restrictive.
Im not really bothered how old it is now and gave a few bags in the freezer on the go. I imagine most is consumed within 1 to 3 months….
My only run in to date with a hopper grinder was a sage smart grinder pro, rather like expecting a fiat uno to win the grand prix as a comparison to all the other grinders ive since had through the kitchen my niche zero was end game in comparison 🤦🏼♂️
The mazzer mini g has me intrigued and i came close to ordering an atom W 75 recently but my wife “needed” a new phone and i drew tails!! 🥰🤦🏼♂️
Mini g has a price now £862 so around a grand landed in the uk
