Here's a copy and paste of a post I made about a month ago when someone else was asking about accessories.
These are the things I bought this summer when I purchased my first Blackstone.
For squeeze bottles: criteria: they dont leak as I take them camping https://www.amazon.com/gp/product/B076PT3BD9/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
For spatulas & Scraper: Wanted ones that dont bend and hold up well without breaking the bank. Also I dont like the cutouts that the older Blackstone ones have on them. The newer ones dont have those however so maybe they are better. https://www.amazon.com/Stainless-Steel-Metal-Spatula-Set/dp/B072QT1LYY/ref=sr_1_1?keywords=anmarko&qid=1575082739&sr=8-1
Cafeteria trays: surprised how much I love/use these, such easy cleanup camping, no excessive waste of paper plates etc. Mine were red, pack of six, and a bit cheaper than what the price is showing now. I use them for everything, chopping veggies, preparing steaks, just toss the dirty one aside, grab a clean one, put the cooked stuff on them, let the steaks rest on them etc. Much sturdier than paper plates. But I also find myself using them at home a lot now when going outside and back inside. Easy carrying food. https://www.amazon.com/Carlisle-CT1014-8103-Standard-Cafeteria-Black/dp/B01C5HC1S4/ref=sr_1_37?crid=KRE80XQPYXZZ&keywords=carlisle+food+tray&qid=1575082836&sprefix=carlisle+%2Caps%2C159&sr=8-37
Meat temp pen: its cheap and it works, not the best you can buy https://www.amazon.com/ThermoPro-Digital-Instant-Thermometer-Kitchen/dp/B01IHHLB3W/ref=sr_1_7?keywords=thermopro&qid=1575083104&sr=8-7
Digital Read Temperature for the griddle. Cant find the one I bought
I already owned excellent quality dome lids. Get one! They work great for steaming vegetables, melting cheese, etc.
If you bought the new pro series with a lid, you can make things like pizza really well :) I made it all summer on my smaller 22" with lid and figured out the best base to set the pizza on was a wire cooking rack. I found the pizza stone worked as well but it got very hot directly on the griddle, and I figured it was just as easy to place it on a rack. Either the pizza directly or the stone on rack. So a cheap cooking rack is handy.
Lots and lots of paper towels :)
I've switched all my syrups over to the OXO squeeze bottles...super easy to clean, measurements on the side and no mess vs using mason jars.
https://www.amazon.com/dp/B076PT3BD9/ref=cm_sw_r_cp_apa_i_s8BaFbRX3EPAT
Yeah -- sure -- first:
This is the lay of the land so to speak, and the target - https://jgagneastro.files.wordpress.com/2018/12/water_coffee_chart-1.png?w=800
Check this out - https://coffeeadastra.com/2018/12/16/water-for-coffee-extraction/
Then this out - https://coffeeadastra.com/2019/08/23/a-tool-and-videos-for-crafting-custom-brew-water/
Note that Gagne has a list of minerals in links. If you want to try something like this, I recommend using his 'shopping list' from amazon.
This is the squeeze bottle that Gagne uses - $10 on amazon (there are reasons he uses plastic like this) - https://www.amazon.com/gp/product/B076PT3BD9/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
Note: you can use Reverse Osmosis water for "mixing water" like this, IF the RO water has low enough mineral/solids content. You can easily measure the TDS of RO water with this - https://www.amazon.com/gp/product/B07H578WWT/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1 - if the TDS is very low, you can just use that water instead of buying distilled. I go to a Primo/Glacier water refill station, the TDS is below 10, which is very low. I fill up 3 gallon jugs. I pump the jugs with this - https://www.amazon.com/gp/product/B07PLSJY4F/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 - into 3 liter glass containers with spigot. You can get those things at ikea, target, amazon
I have a couple of these and the top feels pretty high quality and has never broke on me.
If you don't want to drive anywhere: https://www.amazon.com/OXO-Grips-Chefs-Squeeze-Bottle/dp/B076PT3BD9 I say this, because you want to be sure that it is food safe. There are a ton on Amazon, but I do not know how safe they actually are. When I make simple syrup, it is something that might be sitting in that bottle for a bit, and I do not want to risk something leeching from the bottle to my syrup.
If those don't work for you, then do what I do, and go to the local restaurant supply store, get the squeeze bottles from there. That is where I got mine from, they were cheaper than the OXO brand, and I bought more than I needed, so that in case one breaks, I can just toss it. The bottles will not be something you can BIFL on.
