I ship routinely all across the country, I use USPS flat rate for most, with the smallest orders going USPS priority in a postal #4 box. The only glass I ship is my bourbon barrel aged syrup, so far I've had no reports of it getting there damaged or broken. I have however had 2 or 3 medium flat rate boxes where 1 or both half gal jugs did not survive or were missing. If that happens, just file a claim. They cover the first $50 no charge, if you want to insure higher you pay.
I used to ship larger orders FedEx (most were 4 gal in a box) but they had too many damaged shipments and they charged more than when I shipped 4 medium flat rate by USPS each with 2 half gal jugs. I still have a FedEx account but have not used them in at least 4 years, maybe 5.
For USPS, if you will only have one or 2 shipments, just go to the P.O. but if you get into shipping routinely I suggest you set up an acct. with USPS. Then you arrange pick up and print labels on your computer and they pick up at your place , no charge if with normal mail delivery and you get a 10% discount. If you start shipping a lot, I suggest you design a web site in Word Press and get Woo Commerce, with that you earn an even larger discount on shipping.
Dave Klish, I recently ordered a 2x6 wood fired evaporator from A&A Sheet Metal which I will be converting to oil fired
Now have solar, 2x6 finish pan, 5 bank 7x7 filter press, large water jacketed bottler, and tankless water heater.
Recently bought another Gingerich RO, this one was a 125, but a second membrane was added thus is a 250, like I had.
After running a 2x3, a 2x6, 3x8 tapping from 79 taps up to 1320 all woodfired, now I'm going to a 2x6 oil fired and a 200-425 taps.